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Shungo Natsui

Section

Institute of Multidisciplinary Research for Advanced Materials

Job title

Associate Professor

Degree

researchmap

https://researchmap.jp/natsui

J-GLOBAL ID

201301081211614324

e-Rad No.

70706879

ORCID

https://orcid.org/0000-0003-2366-2974

Research History 6

2021/04 - Present

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Associate Professor
2023/06 - 2024/06

Delft University of Technology　Materials Science and Engineering, Department of faculty 3mE　Visiting Professor
2020/05 - 2023/04

Tohoku University
2019/04 - 2021/03

Tohoku University　Institute of Multidisciplinary Research for Advanced Materials　Assistant Professor
2013/04 - 2019/03

Hokkaido University
2010/04 - 2013/03

日本学術振興会　特別研究員(DC1)

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Education 3

Tohoku University　Graduate School of Engineering

2010/04 - 2013/03
Tohoku University　Graduate School of Engineering　Master course

2008/04 - 2010/03
Tohoku University　School of Engineering　Material Science and Engineering course

2004/04 - 2008/03

Committee Memberships 21

TMS　Metallurgical Materials Transactions B, Editorial board

2025/01 - Present
Carbon Neutrality Frontiers, Editorial Board

2024/11 - Present
ISIJ　Carbon Neutral-WG

2023/01 - Present
Journal of Iron and Steel Research International　Youth editorial board

2022/05 - Present
電気化学会溶融塩委員会　幹事

2021/02 - Present
資源・素材学会　素材部門委員

2015/04 - Present
日本鉄鋼協会　高温プロセス部会若手ﾌｫｰﾗﾑ委員

2014/07 - Present
ISIJ "Tetsu-to-Hagane" special issue planning WG　member

2022/04 - 2024/03
ISIJ, Iron and Steel Institute of Japan　Special Committee Member of the Journal Editorial Board

2018/04 - 2024/03
日本学術振興会製銑第54委員会　庶務幹事 (事務局)

2021/04 - 2023/03
日本学術振興会製銑第54委員会　委員

2019/06 - 2023/03
日本鉄鋼協会, 次世代水素富化高炉の塊状帯制御研究会　副主査

2020/03 - 2023/02
The Electrochemistry Society of Japan　2022 Autumn Meeting Proposal Symposium Planning Secretary

2022/04 - 2022/09
電気化学会溶融塩委員会　編集副委員長

2019/02 - 2021/01
鉄鋼協会東北⽀部講演⼤会運営委員会　委員

2020/10 - 2020/12
一般社団法人日本鉄鋼協会Ⅰ型研究会"通気性確保に向けた高炉内融着現象の制御研究会"　幹事

2016/04 - 2019/03
日本金属学会北海道支部　事務局幹事

2016/04 - 2018/03
日本鉱業振興会　スラグ有効利用調査委員会委員

2014/10 - 2017/03
日本鉱業振興会　二液相間に生成・分離するエマルジョンの高精度な移動現象解析モデルの開発委員会委員長

2014/04 - 2017/03
電気化学会溶融塩委員会　事務局長

2015/02 - 2017/01
The committee of 5th International Round Table on Titanium Production in Molten Salts (Ti-RT2016)　事務局

2016/04 - 2016/07

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Professional Memberships 7

The Japanese Society for Experimental Mechanics
TMS
THE JAPAN INSTITUTE OF METALS AND MATERIALS
THE ELECTROCHEMICAL SOCIETY OF JAPAN, molten salt committee
THE MINING AND MATERIALS PROCESSING INSTITUTE OF JAPAN
THE SOCIETY OF POWDER TECHNOLOGY, JAPAN
THE IRON AND STEEL INSTITUTE OF JAPAN

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Research Interests 5

Transport Phenomena
Material processing
High-temperature physical chemistry
Melt / Interface
Computer Simulation

Research Areas 3

Nanotechnology/Materials / Metals and resources production /
Environmental science/Agricultural science / Environmental load reduction/restoration technology /
Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Transfer phenomena and unit operations /

Awards 21

Steel Technology Award

2022/09　Steel Foundation for Environmental Protection Technology
Sawamura award (best paper award)

2022/03
Yamaoka award

2021/03　The Iron and Steel Institute of Japan
Encouraging prize

2021/03　The Mining and Materials Processing Institute of Japan
Tokin Science and Technology Award

2021/03　Tokin Science and Technology Promotion Foundation
Honda memorial encouraging prize

2020/11　The Honda memorial foundation
Tawara The Best Year's Paper Award

2020/03　The Iron and Steel Institute of Japan
Technical Chairperson's Award

2018/10　Steel Foundation for Environmental Protection Technology
Best Presentation Award

2018/09　JSEM
66th The Japan Institute of Metals and Materials The Best Paper Award

2018/09　The Japan Institute of Metals and Materials
Sato Noriyasu award

2018/07　The Japan Institute of Metals and Materials, Hokkaido branch
ISIJ Young Researcher Award

2018/03　The Iron and Steel Institute of Japan
Best Reviewer

2017/05　The Iron and Steel Institute of Japan (ISIJ)
Excellent Reviewer Award

2016/03　TMS　(Metallurgical and Materials Transactions B)
President's Award for Research Excellence

2016/02　Hokkaido University
63th The Japan Institute of Metals and Materials The Best Paper Award

2015/09　he Japan Institute of Metals(JIM)
Tawara Award

2014/03　The Iron and Steel Institute of Japan (ISIJ)
45th Molten Salt Encouragement Prize

2013/11　Molten Salt Committee, The Electrochemical Society of Japan
6th The Incentive Award of IMRAM

2011/12　Hatano scholarship fund, IMRAM, Tohoku University
Award for Dean of the Graduate School of Engineering

2010/03　Graduate School of Engineering, Tohoku University
4th The Incentive Award of IMRAM

2009/12　Hatano scholarship fund, IMRAM, Tohoku University

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Papers 163

Activity Report on Information-Gathering of Literatures for Precious Metal Salts Peer-reviewed

Kouji Yasuda, Takahiro Okubo, Osamu Takeda, Shungo Natsui, Hidehiro Sekimoto

Electrochemistry　in press　2025/09
Electrochemical Characterization of Cu-Induced Interfacial Behavior between a Molten Fe–Cu Alloy and Molten Oxide Peer-reviewed

Satoshi Honna, Shungo Natsui, Akihisa Ito, Kouji Yasuda, Sohei Sukenaga, Takayuki Iwama, Shigeru Ueda, Hiroshi Nogami

ACS Omega　10　(27)　29793-29803　2025/07/02
Publisher: American Chemical Society (ACS)
DOI： 10.1021/acsomega.5c04287 　

ISSN： 2470-1343

eISSN： 2470-1343
Analysis of Heat and Mass Transfer for Hydrogen-enriched Direct Reduction Process Based on DEM-CFD Peer-reviewed

Taiki Iwanaga, Koki Terui, Kazuhira Ichikawa, Toshiyuki Hirosawa, Takashi Matsui, Tetsuya Yamamoto, Shungo Natsui, Hiroshi Nogami

ISIJ International　65　(6)　874-883　2025/05/30
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2024-351 　

ISSN： 0915-1559

eISSN： 1347-5460
Analysis of Softening-Melting Behavior of Sinters and Their Packed Bed Considering Internal Structure Particles - Part 2: Direct Evaluation of Packed Bed Deformation and Gas Permeability Peer-reviewed

Ryusho Honda, Shungo Natsui, Hiroshi Nogami

ISIJ International　65　(6)　896-905　2025/05/30
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.ISIJINT-2024-324 　

ISSN： 0915-1559

eISSN： 1347-5460
Analysis of Softening–Melting Behavior of Sinters and Their Packed Bed Considering Internal Structure Particles - Part 1: Convergence Simulation Reflecting Sinter Structure Obtained by X-ray Computed Tomography Peer-reviewed

Ryusho Honda, Shungo Natsui, Jeong-In Kim, Hiroshi Nogami

ISIJ International　65　(6)　884-895　2025/05/30
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.ISIJINT-2024-323 　

ISSN： 0915-1559

eISSN： 1347-5460
Polarization Effects on Cu Migration at the Interface between Cu-Containing Molten Fe and Molten Slag Peer-reviewed

Shungo Natsui, Kota Mori, Akihisa Ito, Miho Hayasaka, Satoshi Honna, Hiroshi Nogami

ACS Sustainable Chemistry & Engineering　13　(19)　6982-6991　2025/05/19

DOI： 10.1021/acssuschemeng.4c10767 　
Activity Report on Information-Gathering of Literatures for Precious Metal Salts Peer-reviewed

Kouji YASUDA, Takahiro OHKUBO, Osamu TAKEDA, Shungo NATSUI, Hidehiro SEKIMOTO

Molten Salts　67　(3)　128-139　2025

DOI： 10.5796/electrochemistry.25-00116 　
Communication—Rotating Basket Cathode for High-Speed Electrolytic Reduction of TiO2 in Molten CaCl2-CaO Peer-reviewed

Rei Yamamoto, Shungo Natsui, Akihisa Ito, Miho Hayasaka, Hiroshi Nogami

Journal of The Electrochemical Society　171　123501　2024/12/03

DOI： 10.1149/1945-7111/ad95c0 　
Classification Analysis of Blended Copper Concentrate Tablet Combustion Behavior by High-speed Imaging of Suspended Combustion Test and Convolutional Neural Network Peer-reviewed

Shungo Natsui, Yuko Goto, Jun-ichi Takahashi, Hiroshi Nogami

Journal of MMIJ　140　(10)　144-152　2024/08

DOI： 10.2473/journalofmmij.MMIJ-2024-006 　
In-situ microscale observation of FeOx-SiO2 interfacial reaction Peer-reviewed

Yuko Goto, Sakiko Kawanishi, Shungo Natsui, Jun-ichi Takahashi, Hiroshi Nogami

Metallurgical and Material Transactions B　55　1735-1753　2024/03

DOI： 10.1007/s11663-024-03063-9 　
Intra-particle Analysis of Impact of H2 on Iron-oxide Reduction in CO-CO2-H2-H2O-N2 Gas Atmosphere Peer-reviewed

Jeong-In Kim, Shusei Kubota, Shungo Natsui, Taiki Iwanaga, Yuji Miki, Hiroshi Nogami

ISIJ International　63　(10)　1595-1606　2023/10/15
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2023-152 　

ISSN： 0915-1559

eISSN： 1347-5460
Pattern analysis of the combustions of various copper concentrate tablets using high-speed microscopy and video-based deep learning Peer-reviewed

Shungo Natsui, Yuko Goto, Jun-ichi Takahashi, Hiroshi Nogami

Chemical Engineering Science　276　118822-118822　2023/05
Publisher: Elsevier BV
DOI： 10.1016/j.ces.2023.118822 　

ISSN： 0009-2509
Novel 3D Analysis of Reduction;Behavior of Single;Iron-oxide Particle in CO-CO Gas Atmosphere Peer-reviewed

Jeong-In Kim, Shusei Kubota, Shungo Natsui, Taiki Iwanaga, Yuji Miki, Hiroshi Nogami

Chemical Engineering Science　271　118580　2023/05
Publisher: Elsevier BV
DOI： 10.1016/j.ces.2023.118580 　

ISSN： 0009-2509
Tracking combustion behavior of copper monosulfide, ferrous sulfide, and chalcopyrite tablets by high-speed microscopic videography Peer-reviewed

Shungo Natsui, Iori Nishimura, Akihisa Ito, Hiroshi Nogami

Chemical Engineering Science　267　118355　2023/03
Publisher: Elsevier BV
DOI： 10.1016/j.ces.2022.118355 　

ISSN： 0009-2509
Molten oxide electrolysis using copper-containing carbon-saturated molten iron anode Peer-reviewed

Shungo Natsui, Takahiro Sato, Akihisa Ito, Miho Hayasaka, Takayuki Iwama, Kota Mori, Shigeru Ueda, Hiroshi Nogami

Journal of Electrochemical Society　170　023501　2023/02
Publisher: The Electrochemical Society
DOI： 10.1149/1945-7111/acb84f 　

ISSN： 0013-4651

eISSN： 1945-7111

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Abstract This study focused on the use of molten oxide electrolysis (MOE) as a low-cost, clean, continuous separation method suitable for incorporation into actual steelmaking processes. We discussed interfacial behavior from molten iron to slag by anodic polarization of the copper-containing carbon-saturated molten iron (metal phase)–molten oxide (slag phase) interface and investigate the operating mechanism of MOE. The basic constant potential electrolysis between the metal phase (Fe-10 wt% Cu-5.0 wt% C) and slag phase (27 wt% CaO-27 wt% SiO2-45 wt% Al2O3-1.0 wt% CaS) by maintaining 1–2 V vs. Pt at 1773 K in an Ar atmosphere is described. When polarized, a high concentration of dispersed Cu-rich phase was detected locally near the metal–slag interface but not in the phase center of the metal. At the metal–slag interface, the energies of the Fe-rich and Cu-rich phase–slag interfaces decreased due to electric capillarity, and the Cu-rich phase distributed near the interface.
Dynamic Model of High-Temperature Sintered Iron Ore Plastic Deformation Considering Reduction Degree Peer-reviewed

Shungo Natsui, Mizuki Tanaka, Andrey Stephan Siahaan, Hiroshi Nogami

Metallurgical and Materials Transactions B　53　(6)　3842-3855　2022/12
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s11663-022-02646-8 　

ISSN： 1073-5615

eISSN： 1543-1916
Formation of Bright White Plasma Electrolytic Oxidation Films with a Uniform Maze-Like Structure by Anodizing Aluminum in Ammonium Tetraborate Solutions Peer-reviewed

Tatsuya Kikuchi, Miu Sato, Mana Iwai, Daiki Nakajima, Junji Nunomura, Yoshiyuki Oya, Shungo Natsui

Journal of The Electrochemical Society　169　(4)　043505-043505　2022/04/08

DOI： 10.1149/1945-7111/ac62bc 　

ISSN： 0013-4651

eISSN： 1945-7111
Quantification of the Impact of Residual H2O on Cathodic Behavior in Molten CaCl2 Electrolysis Peer-reviewed

Shungo Natsui, Ryota Shibuya, Ryosuke O. Suzuki, Tatsuya Kikuchi, Akihisa Ito, Takahiro Sato, Rei Yamamoto, Hiroshi Nogami

Journal of Sustainable Metallurgy　8　(1)　532-540　2022/03
Publisher: Springer Science and Business Media {LLC}
DOI： 10.1007/s40831-022-00516-w 　
Droplet behavior analysis on inclined, highly sticky, or slippery superhydrophobic nanostructured surfaces by observation and SPH simulation Peer-reviewed

Shungo Natsui, Kazui Tonya, Daiki Nakajima, Tatsuya Kikuchi, Hiroshi Nogami

Chemical Engineering Science　248　117214-117214　2022/02
Publisher: Elsevier BV
DOI： 10.1016/j.ces.2021.117214 　

ISSN： 0009-2509
Gas Permeability Evaluation of Granulated Slag Particles Packed Bed during Softening and Melting Stage with Fanning’s Equation

Ko-ichiro Ohno, Yoshiki Kitamura, Sohei Sukenaga, Shungo Natsui, Takayuki Maeda, Kazuya Kunitomo

Tetsu-to-Hagane　108　(10)　703-712　2022
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/tetsutohagane.tetsu-2022-025 　

ISSN： 0021-1575

eISSN： 1883-2954
Impact of high-temperature non-uniform degradation on fines clogging and gas flow in a coke bed Peer-reviewed

Shungo Natsui, Azuma Hirai, Koki Terui, Yusuke Kashihara, Akinori Murao, Yuji Miki, Hiroshi Nogami

Chemical Engineering Journal　427　131484-131484　2022/01
Publisher: Elsevier {BV}
DOI： 10.1016/j.cej.2021.131484 　
Recent Studies on Titanium Refining: 2017–2020 Invited Peer-reviewed

Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi

Materials Transactions　62　(6)　905-913　2021/06/01
Publisher: Japan Institute of Metals
DOI： 10.2320/matertrans.mt-m2020373 　

ISSN： 1345-9678

eISSN： 1347-5320
Comprehensive numerical assessment of molten iron-slag trickle flow gas countercurrent in complex coke bed by Eulerian-Lagrangian approach Peer-reviewed

Shungo Natsui, Kazui Tonya, Azuma Hirai, Hiroshi Nogami

Chemical Engineering Journal　414　128606-128606　2021/06
Publisher: Elsevier BV
DOI： 10.1016/j.cej.2021.128606 　

ISSN： 1385-8947
Method for Simulating Gas Permeability of a Coke Bed Including Fines Based on 3D Imaging on the Coke Particle Morphology Peer-reviewed

Shungo Natsui, Azuma Hirai, Koki Terui, Yusuke Kashihara, Akinori Murao, Yuji Miki, Hiroshi Nogami

ISIJ International　61　(6)　1814-1825　2021/03
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2020-749 　

ISSN： 0915-1559

eISSN： 1347-5460
Synchronized High-Speed Microscopy and Thermoanalytical Measurement for Sub-mm/sub-ms-scale Cathodic Behavior in Molten Salt Electrolysis

Shungo Natsui, Ryota Shibuya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki

Minerals, Metals and Materials Series　5　338-345　2021
Publisher: Springer Science and Business Media Deutschland GmbH
DOI： 10.1007/978-3-030-65261-6_30 　

ISSN： 2367-1696 2367-1181
SPH Simulations of binary droplet deformation considering the Fowkes theory Peer-reviewed

Shungo Natsui, Kazui Tonya, Hiroshi Nogami, Tatsuya Kikuchi, and Ryosuke O. Suzuki

Chemical Engineering Science　229　116035-116035　2021/01
Publisher: Elsevier BV
DOI： 10.1016/j.ces.2020.116035 　

ISSN： 0009-2509
Numerical Analysis of Raceway Formation in Isothermal and Non-reactive Packed Bed Invited Peer-reviewed

Shinsuke Taya, Shungo Natsui, Jose Adilson de Castro, Hiroshi Nogami

ISIJ International　60　(12)　2669-2677　2020/12/15
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2020-167 　

ISSN： 0915-1559

eISSN： 1347-5460
Numerical Approach to Comprehend for Effect of Melts Physical Properties on Iron-slag Separation Behaviour in Self-reducing Pellet Invited Peer-reviewed

Ko-ichiro Ohno, Shungo Natsui, Sohei Sukenaga, Kazui Tonya, Takayuki Maeda, Kazuya Kunitomo

ISIJ International　60　(12)　2695-2704　2020/12/15
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2020-218 　

ISSN： 0915-1559

eISSN： 1347-5460
Numerical Simulation of Coexisting Solid-liquid Slag Trickle Flow in a Coke Bed by the SPH Method with a Non-Newtonian Fluid Model Peer-reviewed

Shungo Natsui, Akinori Sawada, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki

ISIJ International　60　(7)　1445-1452　2020/07/15
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2019-701 　

ISSN： 0915-1559

eISSN： 1347-5460
Effect of pre-reduction degree on softening behavior of simulant sinter iron ore Peer-reviewed

Ko-ichiro Ohno, Hirokazu Konishi, Takashi Watanabe, Shingo Ishihara, Shungo Natsui, Takayuki Maeda, Kazuya Kunitomo

ISIJ International　60　(7)　1520-1527　2020/07

DOI： 10.2355/ISIJINTERNATIONAL.ISIJINT-2020-040 　

ISSN： 0915-1559
Prediction of softening behavior of simulant sinter ore by ADEM-SPH model Peer-reviewed

Shingo Ishihara, Ko-ichiro Ohno, Hirokazu Konishi, Takashi Watanabe, Shungo Natsui, Hiroshi Nogami, Junya Kano

ISIJ International　60　(7)　1545-1550　2020/07

DOI： 10.2355/ISIJINTERNATIONAL.ISIJINT-2020-078 　

ISSN： 0915-1559
Gas permeability evaluation of granulated slag particles packed bed during softening and melting stage with Fanning's equation Peer-reviewed

Ko-ichiro Ohno, Yoshiki Kitamura, Sohei Sukenaga, Shungo Natsui, Takayuki Maeda, Kazuya Kunitomo

ISIJ International　60　(7)　1512-1519　2020/07
Publisher: Iron and Steel Institute of Japan
DOI： 10.2355/isijinternational.isijint-2020-012 　

ISSN： 0915-1559

eISSN： 1347-5460
Topological consideration of 3-D local void structure for static holdup site in packed bed Peer-reviewed

Shungo Natsui, Akinori Sawada, Hiroshi Nogami, Tatsuya Kikuchi, and Ryosuke O. Suzuki

ISIJ International　60　(7)　1453-1460　2020/07
Detailed modelling of packed-bed gas clogging due to thermal-softening of iron ore by Eulerian–Lagrangian approach Peer-reviewed

Shungo Natsui, Shingo Ishihara, Tatsuya Kon, Ko-ichiro Ohno, Hiroshi Nogami

Chemical Engineering Journal　392　123643-123643　2020/07
Publisher: Elsevier BV
DOI： 10.1016/j.cej.2019.123643 　

ISSN： 1385-8947
Activity Report on Information-Gathering of Database Literatures for Molten Salts Peer-reviewed

Kouji Yasuda, Takahiro Okubo, Osamu Takeda, Shungo Natsui, Hidehiro Sekimoto

Electrochemistry　88　(4)　243-252　2020/06/19

DOI： 10.5796/electrochemistry.20-00058 　

ISSN： 1344-3542

eISSN： 2186-2451
Characterization of the Cathodic Thermal Behavior of Molten CaCl2 and Its Hygroscopic Chloride Mixture During Electrolysis Peer-reviewed

Ryota Shibuya, Shungo Natsui, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki

Journal of The Electrochemical Society　167　(10)　102507-102507　2020/06/12
Publisher: The Electrochemical Society
DOI： 10.1149/1945-7111/ab9961 　

eISSN： 1945-7111
Photoluminescence from Anodic Aluminum Oxide Formed via Etidronic Acid Anodizing and Enhancing the Intensity Peer-reviewed

Tatsuya Kikuchi, Shunta Akiya, Kaito Kunimoto, Ryosuke O. Suzuki, Shungo Natsui

MATERIALS TRANSACTIONS　61　(6)　1130-1137　2020/06/01
Publisher: Japan Institute of Metals
DOI： 10.2320/matertrans.mt-m2020010 　

ISSN： 1345-9678

eISSN： 1347-5320

More details Close

Photoluminescence (PL) emission from anodic aluminum oxide (AAO) formed by etidronic acid anodizing was investigated via fluorescence spectroscopy. Highly pure aluminum plates were anodized in an etidronic acid solution under various operating conditions. PL emission from the typical AAO film was identified with an approximately 250–275-nm range in excitation and a 375–450-nm range in emission, and this distribution was greatly different from the AAO film formed by typical carboxylic acid treatment. The PL intensity increased with the decrease of the concentration of etidronic acid solution. The intensity also increased with anodizing time and subsequent thermal treatment, whereas excess anodizing and high temperature treatment caused an intensity decrease. The AAO film consisted of an outer oxide containing incorporated etidronate anions and a thin honeycomb inner oxide without anions, and the oxygen vacancy localized in the AAO film and anion distribution strongly affected the PL intensity. The appropriate operating condition through anodizing in 0.05 M etidronic acid for 40 h and subsequent thermal treatment at 773 K for 2 h caused the maximum enhancement of the PL emission.
Synthesis of Sc sulfides by CS2 sulfurization Peer-reviewed

Takumi Kaneko, Yuta Yashima, Eltefat Ahmadi, Shungo Natsui, Ryosuke O. Suzuki

Journal of Solid State Chemistry　285　121268　2020/02
Numerical study of binary trickle flow of liquid iron and molten slag in coke bed by smoothed particle hydrodynamics Peer-reviewed

Shungo Natsui, Kazui Tonya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki, Ko-ichiro Ohno, Sohei Sukenaga, Tatsuya Kon, Shingo Ishihara and Shigeru Ueda

Processes　8　(2)　221　2020/02

DOI： 10.3390/pr8020221 　

eISSN： 2227-9717
Visualization of TiO2 reduction behavior in molten salt electrolysis Peer-reviewed

Shungo Natsui, Takuya Sudo, Ryota Shibuya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki

Metallurgical Materials Transactions B　51　11-15　2020/02
Activity Report on Information-Gathering of Database Literatures for Molten Salts Invited Peer-reviewed

Kouji Yasuda, Takahiro Okubo, Osamu Takeda, Shungo Natsui, Hidehiro Sekimoto

Molten Salts　63　(1)　25-35　2020/01

ISSN： 0916-1589
Fabrication of a Plasma Electrolytic Oxidation/Anodic Aluminum Oxide Multi-Layer Film via One-Step Anodizing Aluminum in Ammonium Carbonate Peer-reviewed

Tatsuya Kikuchi, Taiki Taniguchi, Ryosuke O. Suzuki, Shungo Natsui

Thin Solid Films　697　137799　2020
OS process: Calciothermic reduction of TiO2 via CaO electrolysis in molten CaCl2. Calciothermic reduction of TiO2 via CaO electrolysis in molten CaCl2

Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi

Extractive Metallurgy of Titanium: Conventional and Recent Advances in Extraction and Production of Titanium Metal　287-313　2019/11/08
Publisher: Elsevier Inc.
DOI： 10.1016/B978-0-12-817200-1.00012-0 　
A Superhydrophilic Aluminum Surface with Fast Water Evaporation Based on Anodic Alumina Bundle Structures via Anodizing in Pyrophosphoric Acid Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Taiki Yoshioka, Hisayoshi Matsushima, Mikito Ueda, Ryosuke O. Suzuki, Shungo Natsui

Materials　12　(21)　3497　2019/11

DOI： 10.3390/ma12213497 　

eISSN： 1996-1944
Gas Generation Reactions during TiO2 Reduction Using Molten Salt Peer-reviewed

Yasushi Haraguchi, Ryota Shibuya, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

J. Japan Inst. Met. Mater.　83　(11)　441-448　2019/11
Electrochemical and Morphological Characterization of Porous Alumina Formed by Galvanostatic Anodizing in Etidronic Acid Peer-reviewed

Mana Iwai, Tatsuya Kikuchi, Ryosuke O. Suzuki, Shungo Natsui

Electrochimica Acta　320　134606　2019/10

DOI： 10.1016/j.electacta.2019.134606 　

ISSN： 0013-4686

eISSN： 1873-3859
Corrosion-Resistant Porous Alumina Formed via Anodizing Aluminum in Etidronic Acid and Its Pore-Sealing Behavior in Boiling Water Peer-reviewed

Yusuke Suzuki, Kai Kawahara, Tatsuya Kikuchi, Ryosuke O. Suzuki, Shungo Natsui

Journal of The Electrochemical Society　166　C261-C269　2019/07

DOI： 10.1149/2.0221912jes 　
Fabrication of Anodic Porous Alumina via Galvanostatic Anodizing in Alkaline Sodium Tetraborate Solution and Their Morphology Peer-reviewed

Tatsuya Kikuchi, Kaito Kunimoto, Hiroki Ikeda, Daiki Nakajima, Ryosuke O. Suzuki, Shungo Natsui

Journal of Electroanalytical Chemistry　846　113152　2019/07
Solubility of CaS in Molten CaCl2-LiCl Eutectic Melt Peer-reviewed

Takahiro Matsuzaki, Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi, Mikito Ueda

Materials Transactions　60　(3)　411-415　2019/03
Solubility of CaS in Molten CaCl2 Peer-reviewed

Takahiro Matsuzaki, Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi, Mikito Ueda

Materials Transactions　60　(3)　386-390　2019/03
Advancing and receding contact angle investigations for highly sticky and slippery aluminum surfaces fabricated from nanostructured anodic oxide Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

RSC Advances　8　37315-37323　2018/11
Metal Production in CaCl2-based Melts Invited Peer-reviewed

Ryosuke O. Suzuki, Hiromi Noguchi, Yasushi Haraguchi, Shungo Natsui, Tatsuya Kikuchi

ECS Transactions　86　(14)　45-53　2018/09

DOI： 10.1149/08614.0045ecst 　

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In order to produce metals directly from the oxides, molten CaO-CaCl2 mixture offers a strong reducing environment. CaO in CaCl2 melt electrochemically decomposes into metallic Ca and O2- by applying a certain voltage larger than the theoretical decomposition voltage of CaO. Ca, deposited on cathode and dissolved in the melt, can work as strong reductant. Various metals such as Ti can be produced directly from their stable oxides. Although this calciothermic reduction forms CaO as by-product close to the cathode, CaO dissolves in CaCl2 melt and decomposes again by electrolysis. This OS process could be applied to solid, liquid and gaseous oxides. By applying the sulfides, good quality of metal is realized because they do not form solid solution of sulfur.
Calciothermic Reduction and Electrolysis of Sulfides in CaCl2 Melt Peer-reviewed

Ryosuke O. Suzuki, Nobuyoshi Suzuki, Yuta Yashima, Shungo Natsui, Tatsuya Kikuchi

Proceedings of the First Global Conference on Extractive Metallurgy (Extraction2018), ed. by B.R.Davis, M.S.Moats, S.Wang, The Minerals, Metals & Materials Society 2018, Springer, Cham, Switzerland　763-771　2018/09

DOI： 10.1007/978-3-319-95022-8_60 　

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A new metallurgical process via sulfide is proposed: a sulfide is produced at a high temperature from its metallic oxide using gaseous CS2, and this sulfide is electrochemically reduced to its metallic state using molten salt. This combined process via sulfide is effective to obtain high purity of metallic powder, even if the metal in its oxide is strongly combined with oxygen. For example, it is not easy to reduce stable oxide TiO2, and only Ca can remove oxygen to form α-Ti. However, a fairly large amount of oxygen remains as Ti–O solid solution. Because the solubility of S in Ti is very small, this proposal was examined experimentally both on the conversion of TiO2 to TiS2 and on the successive reduction of TiS2 to Ti. TiO2 powder was exposed to CS2 gas flow at 1073 K, and the conversion to TiS2 was confirmed. TiS2 could be reduced to Ti powder either by calciothermic reduction or electrolysis in a CaCl2 melt. By Ca reduction at 1133 K in CaCl2 melt, sulfur concentration decreased to 0.03 mass%S when the amount greater than twice the stoichiometric calcium amount is added. By electrochemical reduction at 1173 K in CaCl2–CaS melt, S concentration significantly decreased to 0.01 mass%S when four times larger amount of electric charge was supplied.
Spontaneous colloidal metal network formation driven by molten salt electrolysis Peer-reviewed

Shungo Natsui, Takuya Sudo, Takumi Kaneko, Kazui Tonya, Daiki Nakajima, Tatsuya Kikuchi, Ryosuke O. Suzuki

Scientific Reports　8　13114　2018/09
Holdup characteristics of melt in coke beds of different shapes Peer-reviewed

Shungo Natsui, Akinori Sawada, Tatsuya Kikuchi, Ryosuke O. Suzuki

ISIJ International　58　(9)　1742-1744　2018/09

DOI： 10.2355/isijinternational.ISIJINT-2017-496 　
Nanostructural Characterization of Ordered Gold Particle Arrays Fabricated via Aluminum Anodizing, Sputter Coating, and Dewetting Peer-reviewed

Hiroki Ikeda, Mana Iwai, Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki

Applied Surface Science　465　747-753　2018/09
Evaluation of Coke Degradation Effect on Flow Characteristics in Packed Bed Using 3D Scanning for Rotational Mechanical Strength Test and Solid-liquid-gas Three-phase Dynamic Model Analysis Peer-reviewed

Shungo Natsui, Akinori, Sawada, Koki Terui, Yusuke Kashihara, Tatsuya Kikuchi, Ryosuke O. Suzuki

Tetsu-to-Hagane　104　(7)　347-357　2018/07
Column and film lifetimes in bubble-induced two-liquid flow Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Daiki Nakajima, Tatsuya Kikuchi, Ryosuke O. Suzuki

Physical Review E　97　(6)　062802　2018/06/18
Publisher: American Physical Society
DOI： 10.1103/PhysRevE.97.062802 　

ISSN： 2470-0053 2470-0045
Performance Analysis of Thermoelectric Modules Consisting of Square Truncated Pyramid Elements Under Constant Heat Flux Peer-reviewed

Sae Oki, Shungo Natsui, Ryosuke O. Suzuki

Journal of Electronic Materials　47　(6)　3288-3297　2018/06/01
Publisher: Springer New York LLC
DOI： 10.1007/s11664-017-6055-y 　

ISSN： 0361-5235
Mirror-finished superhydrophobic aluminum surfaces modified by anodic alumina nanofibers and self-assembled monolayers Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

Applied Surface Science　440　506-513　2018/05/15
Publisher: Elsevier B.V.
DOI： 10.1016/j.apsusc.2018.01.182 　

ISSN： 0169-4332
Fabrication of ordered submicrometer-scale convex lens array via nanoimprint lithography using an anodized aluminum mold Peer-reviewed

Kai Kawahara, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

Microelectronic Engineering　185-186　61-68　2018/01/05
Publisher: Elsevier B.V.
DOI： 10.1016/j.mee.2017.10.016 　

ISSN： 0167-9317
Reduction of CaTiO3 by electrolysis in the molten salt CaCl2-CaO Peer-reviewed

Hiromi Noguchi, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

Electrochemistry　86　(2)　82-87　2018
Publisher: Electrochemical Society of Japan
DOI： 10.5796/electrochemistry.17-00078 　

ISSN： 2186-2451 1344-3542
Detailed Modeling of Melt Dripping in Coke Bed by DEM - SPH Peer-reviewed

Natsui, Shungo, Ohno, Ko-ichiro, Sukenaga, Sahel, Kikuchi, Tatsuya, Suzuki, Ryosuke O.

ISIJ INTERNATIONAL　58　(2)　282-291　2018

DOI： 10.2355/isijinternational.ISIJINT-2017-496 　

ISSN： 0915-1559

eISSN： 1347-5460
DEM-SPH study of molten slag trickle flow in coke bed Peer-reviewed

Shungo Natsui, Akinori Sawada, Koki Terui, Yusuke Kashihara, Tatsuya Kikuchi, Ryosuke O. Suzuki

Chemical Engineering Science　175　25-39　2018
Publisher: Elsevier Ltd
DOI： 10.1016/j.ces.2017.09.031 　

ISSN： 0009-2509
Superhydrophilic and superhydrophobic aluminum alloys fabricated via pyrophosphoric acid anodizing and fluorinated SAM modification Peer-reviewed

Ryunosuke Kondo, Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

JOURNAL OF ALLOYS AND COMPOUNDS　725　379-387　2017/11

DOI： 10.1016/j.jallcom.2017.07.183 　

ISSN： 0925-8388

eISSN： 1873-4669
Branched morphology of Nb powder particles fabricated by calciothermic reduction in CaCl2 melt Peer-reviewed

Nobuyoshi Suzuki, Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS　110　58-63　2017/11

DOI： 10.1016/j.jpcs.2017.05.032 　

ISSN： 0022-3697

eISSN： 1879-2553
Fabrication of porous tungsten oxide via anodizing in an ammonium nitrate/ethylene glycol/water mixture for visible light-driven photocatalyst Peer-reviewed

Tatsuya Kikuchi, Jun Kawashima, Shungo Natsui, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　422　130-137　2017/11

DOI： 10.1016/j.apsusc.2017.05.256 　

ISSN： 0169-4332

eISSN： 1873-5584
Advanced hard anodic alumina coatings via etidronic acid anodizing Peer-reviewed

Tatsuya Kikuchi, Akimasa Takenaga, Shungo Natsui, Ryosuke O. Suzuki

Surface and Coatings Technology　326　72-78　2017/10/15
Publisher: Elsevier B.V.
DOI： 10.1016/j.surfcoat.2017.07.043 　

ISSN： 0257-8972
A direct numerical simulation of trickle flow in cokes bed Peer-reviewed

Shungo Natsui, Akinori Sawada, Tatsuya Kikuchi, Ryosuke O. Suzuki

Proceedings of 1st International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry, (EMECR2017),　480-482　2017/10

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A new numerical model was successfully developed for analyzing packed bed structures containing non-spherical solids such as cokes and the high-temperature melt trickle flow characteristics of such beds. This enables the direct three-dimensional analysis of packed beds that are difficult to visualize in experimental tests. The sophisticated smoothed particle hydrodynamics (SPH) method can track the motion of liquids without discriminating between continuous and dispersed phases. Meanwhile, the advanced discrete element method (DEM) is employed as a highly-accurate method for solid-particle motion simulation. It is a method using a contact force model that is expanded to capture the motion of 3-dimensionaly freely shaped rigid bodies. We used the boundary for the packed bed configured with non-spherical solids to carry out a trickle flow simulation. Based on this model, we carried out the largescale simulations, and perform case studies and other studies of statistical processing, and investigate the effects of both physical properties and packed bed formed from various types of non-spherical cokes.
Conversion of CO2 to CO gas using molten CaCl2 and ZrO2 anode Peer-reviewed

Ryosuke O. Suzuki, Fumiya Matsuura, Shungo Natsui, Tatsuya Kikuchi

Proceedings of 1st International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry, (EMECR2017),　360-363　2017/10

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Preferential decomposition of CO2 gas to CO gas was examined by using a combination of CaCl2-CaO melt as a reaction media and ZrO2-8mol% Y2O3 solid-state electrolyte as anode. The conversion ratio of CO2 to CO became larger at the higher temperature, and approached the maximum (88.2%) at 1273 K. The highest CO concentration was generated at cell voltage of 2.55 V, which is close to theoretical decomposition voltage of CaO. Therefore, in addition to calciothermic reaction between precipitated Ca and CO2 gas bubbles, CO2 decomposes preferentially via the decomposition reaction of carbonate ions. Namely CO2 gas dissolves to form CO3 2- under coexistence of CaO in the melt, CO3 2- precipitates carbon or CO gas bubbles on the cathode, and a part of carbon reacts with the blown CO2 gas to form CO. CO gas is used as an effective fuel with easy handling in steel plants.
Morphology of lithium droplets electrolytically deposited in LiCl-KCl-Li2O melt Peer-reviewed

Shungo Natsui, Takuya Sudo, Tatsuya Kikuchi, Ryosuke O. Suzuki

ELECTROCHEMISTRY COMMUNICATIONS　81　43-47　2017/08

DOI： 10.1016/j.elecom.2017.06.001 　

ISSN： 1388-2481

eISSN： 1873-1902
Titanium Fabrication via CaCl2 from FeTiO3

Ryosuke O. Suzuki, Erika Takahashi, Mika Kitamura, Yuta Yashima, Hiromi Noguchi, Shungo Natsui, Tatsuya Kikuchi

Proc. of the 6th Asian Conference on Molten Salts Chemistry and Technology, (June 13-16, 2017, Gyeongju, Korea)　1　OA11_Ryosuke O. Suzuki_Hokkai　2017/06
An SPH Study of Molten Matte-Slag Dispersion Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE　48　(3)　1792-1806　2017/06

DOI： 10.1007/s11663-017-0930-z 　

ISSN： 1073-5615

eISSN： 1543-1916
Capturing the non-spherical shape of granular media and its trickle flow characteristics using fully-Lagrangian method Peer-reviewed

Natsui, Shungo, Nashimoto, Ryota, Kikuchi, Tatsuya, Suzuki, Ryosuke O., Takai, Hifumi, Ohno, Ko-ichiro, Sukenaga, Sohei

AICHE JOURNAL　63　(6)　2257-2271　2017/06

DOI： 10.1002/aic.15538 　

ISSN： 0001-1541

eISSN： 1547-5905
Nanostructural characterization of large-scale porous alumina fabricated via anodizing in arsenic acid solution Peer-reviewed

Shunta Akiya, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　403　652-661　2017/05

DOI： 10.1016/j.apsusc.2017.01.243 　

ISSN： 0169-4332

eISSN： 1873-5584
Electrolytic reduction of V3S4 in molten CaCl2 Peer-reviewed

Takahiro Matsuzaki, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

MATERIALS TRANSACTIONS　58　(3)　371-376　2017

DOI： 10.2320/matertrans.M2016305 　

ISSN： 1345-9678

eISSN： 1347-5320
Calcium Reduction of TiS2 in CaCl2 Melt Peer-reviewed

N. Suzuki, M. Tanaka, H. Noguchi, S. Natsui, T. Kikuchi, R. O. Suzuki

MATERIALS TRANSACTIONS　58　(3)　367-370　2017

DOI： 10.2320/matertrans.MK201613 　

ISSN： 1345-9678

eISSN： 1347-5320
Reduction of CaTiO3 in Molten CaCl2 - as Basic Understanding of Electrolysis Peer-reviewed

Ryosuke O. Suzuki, Hiromi Noguchi, Hiromasa Hada, Shungo Natsui, Tatsuya Kikuchi

MATERIALS TRANSACTIONS　58　(3)　341-349　2017

DOI： 10.2320/matertrans.MK201625 　

ISSN： 1345-9678

eISSN： 1347-5320
Observation of Interface Deformation in Sodium Polytungstate Solution-Silicone Oil System due to Single Rising Bubble Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Daiki Nakajima, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

ISIJ INTERNATIONAL　57　(2)　394-396　2017

DOI： 10.2355/isijinternational.ISIJINT-2016-521 　

ISSN： 0915-1559

eISSN： 1347-5460
Superhydrophilicity of a nanofiber-covered aluminum surface fabricated via pyrophosphoric acid anodizing Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　389　173-180　2016/12

DOI： 10.1016/j.apsusc.2016.06.088 　

ISSN： 0169-4332

eISSN： 1873-5584
Fabrication of self-ordered porous alumina via anodizing in sulfate solutions Peer-reviewed

Ryunosuke Kondo, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

MATERIALS LETTERS　183　285-289　2016/11

DOI： 10.1016/j.matlet.2016.07.109 　

ISSN： 0167-577X

eISSN： 1873-4979
アノード酸化によるアルミナナノファイバーの作製と表面機能化 Peer-reviewed

菊地竜也, 中島大希, 夏井俊悟, 鈴木亮輔

表面技術　67　(10)　527-532　2016/10
Publisher: The Surface Finishing Society of Japan
DOI： 10.4139/sfj.67.527 　
Exploration for the Self-ordering of Porous Alumina Fabricated via Anodizing in Etidronic Acid Peer-reviewed

Akimasa Takenaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

ELECTROCHIMICA ACTA　211　515-523　2016/09

DOI： 10.1016/j.electacta.2016.06.071 　

ISSN： 0013-4686

eISSN： 1873-3859
Temperature Dependence of Behavior of Interface Between Molten Sn and LiCl-KCl Eutectic Melt Due to Rising Gas Bubble Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE　47　(3)　1532-1537　2016/06

DOI： 10.1007/s11663-016-0618-9 　

ISSN： 1073-5615

eISSN： 1543-1916
Numerical Optimization of Trapezoidal Thermoelectric Elements for Double-Pipe-Shaped Module Peer-reviewed

Sae Oki, Keita O. Ito, Shungo Natsui, Ryosuke O. Suzuki

JOURNAL OF ELECTRONIC MATERIALS　45　(3)　1358-1364　2016/03

DOI： 10.1007/s11664-015-4034-8 　

ISSN： 0361-5235

eISSN： 1543-186X
Self-ordered Porous Alumina Fabricated via Phosphonic Acid Anodizing Peer-reviewed

Shunta Akiya, Tatsuya Kikuchi, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki

ELECTROCHIMICA ACTA　190　471-479　2016/02

DOI： 10.1016/j.electacta.2015.12.162 　

ISSN： 0013-4686

eISSN： 1873-3859
SPH simulations of the behavior of the interface between two immiscible liquid stirred by the movement of a gas bubble Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

CHEMICAL ENGINEERING SCIENCE　141　342-355　2016/02

DOI： 10.1016/j.ces.2015.11.018 　

ISSN： 0009-2509

eISSN： 1873-4405
Reduction of TiS2 by OS Process in CaCl2 Melt Peer-reviewed

N. Suzuki, M. Tanaka, H. Noguchi, S. Natsui, T. Kikuchi, R. O. Suzuki

MOLTEN SALTS AND IONIC LIQUIDS 20　75　(15)　507-515　2016

DOI： 10.1149/07515.0507ecst 　

ISSN： 1938-5862
CO Gas Production By CO2 Gas Decomposition in Molten Salt Electrolysis Peer-reviewed

R. O. Suzuki, F. Matsuura, S. Natsui, T. Kikuchi

MOLTEN SALTS AND IONIC LIQUIDS 20　75　(15)　533-542　2016

DOI： 10.1149/07515.0533ecst 　

ISSN： 1938-5862
SPH Analysis of Interfacial Flow of the Two Immiscible Melts Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Tatsuya Kikuchi, Ryosuke O. Suzuki

Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016　589-596　2016
Publisher: Springer International Publishing
DOI： 10.1007/978-3-319-48769-4_63 　
Model study of the effect of particles structure on the heat and mass transfer through the packed bed in ironmaking blast furnace Peer-reviewed

Shungo Natsui, Hifumi Takai, Ryota Nashimoto, Tatsuya Kikuchi, Ryosuke O. Suzuki

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER　91　1176-1186　2015/12

DOI： 10.1016/j.ijheatmasstransfer.2015.08.033 　

ISSN： 0017-9310

eISSN： 1879-2189
Fabrication of a novel aluminum surface covered by numerous high-aspect-ratio anodic alumina nanofibers Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　356　54-62　2015/11

DOI： 10.1016/j.apsusc.2015.08.030 　

ISSN： 0169-4332

eISSN： 1873-5584
Blast Furnace Modeling by Euler-Lagrange Method Invited

Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

Mteria Japan　54　(9)　432-435　2015/09

DOI： 10.2320/materia.54.432 　
Porous aluminum oxide formed by anodizing in various electrolyte species Peer-reviewed

Tatsuya Kikuchi, Daiki Nakajima, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

Current Nanoscience　11　(5)　560-571　2015/07/01
Publisher: Bentham Science Publishers B.V.
DOI： 10.2174/1573413711999150608144742 　

ISSN： 1875-6786 1573-4137
CO2 Decomposition by ZrO2 Anode and Molten Salt Electrolysis in CaCl2-CaO or LiCl-Li2O

Ryosuke O. Suzuki, Takuya Uchiyama, Takafumi Wakamatsu, Fumiya Matsuura, Mika Kitamura, Koya Otake, Shungo Natsui, Norihito Sakaguchi, Tatsuya Kikuchi

Proc. 10th Intern. Conf on Molten Salt Chemistry and Technology (MS10) and 5th Asian Conf. on Molten Salt Chem. and Tech.(AMS5)　218-223　2015/06
Polymer nanoimprinting using an anodized aluminum mold for structural coloration Peer-reviewed

Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　341　19-27　2015/06

DOI： 10.1016/j.apsusc.2015.03.007 　

ISSN： 0169-4332

eISSN： 1873-5584
Fabrication of Self-Ordered Porous Alumina via Etidronic Acid Anodizing and Structural Color Generation from Submicrometer-Scale Dimple Array Peer-reviewed

Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

ELECTROCHIMICA ACTA　156　235-243　2015/02

DOI： 10.1016/j.electacta.2014.12.171 　

ISSN： 0013-4686

eISSN： 1873-3859
Porous Aluminum Oxide Formed by Anodizing in Various Electrolyte Species Peer-reviewed

Tatsuya Kikuchi, Daiki Nakajima, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

CURRENT NANOSCIENCE　11　(5)　560-571　2015

ISSN： 1573-4137

eISSN： 1875-6786
Influence of Shape of Cohesive Zone on Gas Flow and Permeability in the Blast Furnace Analyzed by DEM-CFD Model Peer-reviewed

Shigeru Ueda, Tatsuya Kon, Hiroyuki Kurosawa, Shungo Natsui, Tatsuro Ariyama, Hiroshi Nogami

ISIJ INTERNATIONAL　55　(6)　1232-1236　2015

DOI： 10.2355/isijinternational.55.1232 　

ISSN： 0915-1559

eISSN： 1347-5460
Self-Ordered Aluminum Anodizing in Phosphonoacetic Acid and Its Structural Coloration Peer-reviewed

Akimasa Takenaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

ECS SOLID STATE LETTERS　4　(8)　P55-P58　2015

DOI： 10.1149/2.0021508ssl 　

ISSN： 2162-8742
Optimum Exploration for the Self-Ordering of Anodic Porous Alumina Formed via Selenic Acid Anodizing Peer-reviewed

Shunta Akiya, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

JOURNAL OF THE ELECTROCHEMICAL SOCIETY　162　(10)　E244-E250　2015

DOI： 10.1149/2.0391510jes 　

ISSN： 0013-4651

eISSN： 1945-7111
Carbon Nanotube Synthesis via the Calciothermic Reduction of Carbon Dioxide with Iron Additives Peer-reviewed

Tatsuya Kikuchi, Ryoma Ishida, Shungo Natsui, Takehiko Kumagai, Isao Ogino, Norihito Sakaguchi, Mikito Ueda, Ryosuke O. Suzuki

ECS SOLID STATE LETTERS　4　(9)　M19-M22　2015

DOI： 10.1149/2.0031509ssl 　

ISSN： 2162-8742
Analysis of Effect of Packed Bed Structure on Liquid Flow in Packed Bed Using Moving Particle Semi-implicit Method Peer-reviewed

Tatsuya Kon, Shungo Natsui, Shigeru Ueda, Hiroshi Nogami

ISIJ INTERNATIONAL　55　(6)　1284-1290　2015

DOI： 10.2355/isijinternational.55.1284 　

ISSN： 0915-1559

eISSN： 1347-5460
Analysis of Powder Motion in a Packed Bed of Blast Furnace Using the Discrete Element Method Peer-reviewed

Shin Kikuchi, Tatsuya Kon, Shigeru Ueda, Shungo Natsui, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　55　(6)　1313-1320　2015

DOI： 10.2355/isijinternational.55.1313 　

ISSN： 0915-1559

eISSN： 1347-5460
Reduction Behavior of Packed Bed of Sinter Reduced by CO-CO2-H-2-H2O-N-2 Gas Peer-reviewed

Tatsuya Kon, Ryo Saito, Shigeru Ueda, Shungo Natsui, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　55　(6)　1213-1222　2015

DOI： 10.2355/isijinternational.55.1213 　

ISSN： 0915-1559

eISSN： 1347-5460
Droplet Motion on Non-smooth Solid Surface Peer-reviewed

Shigeru Ueda, Tatsuya Kon, Shin Kikuchi, Shungo Natsui, Sohei Sukenaga, Hiroshi Nogami

ISIJ INTERNATIONAL　55　(6)　1277-1283　2015

DOI： 10.2355/isijinternational.55.1277 　

ISSN： 0915-1559

eISSN： 1347-5460
Characterization of Liquid Trickle Flow in Poor-Wetting Packed Bed Peer-reviewed

Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki, Tatsuya Kon, Shigeru Ueda, Hiroshi Nogami

ISIJ INTERNATIONAL　55　(6)　1259-1266　2015

DOI： 10.2355/isijinternational.55.1259 　

ISSN： 0915-1559

eISSN： 1347-5460
Highly Ordered Anodic Alumina Nanofibers Fabricated via Two Distinct Anodizing Processes Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

ECS ELECTROCHEMISTRY LETTERS　4　(5)　F14-F17　2015

DOI： 10.1149/2.0021505eel 　

ISSN： 2162-8726

eISSN： 2162-8734
Solubility of gaseous carbon dioxide in molten LiCL-Li2O Peer-reviewed

Takafumi Wakamatsu, Takuya Uchiyama, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

FLUID PHASE EQUILIBRIA　385　48-53　2015/01

DOI： 10.1016/j.fluid.2014.10.046 　

ISSN： 0378-3812

eISSN： 1879-0224
CO Gas Production by Molten Salt Electrolysis from CO2 Gas Peer-reviewed

Fumiya Matsuura, Takafumi Wakamatsu, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

ISIJ INTERNATIONAL　55　(2)　404-408　2015

DOI： 10.2355/isijintemational.55.404 　

ISSN： 0915-1559

eISSN： 1347-5460
Growth behavior of anodic oxide formed by aluminum anodizing in glutaric and its derivative acid electrolytes Peer-reviewed

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　321　364-370　2014/12

DOI： 10.1016/j.apsusc.2014.10.014 　

ISSN： 0169-4332

eISSN： 1873-5584
Ultra-High Density Single Nanometer-Scale Anodic Alumina Nanofibers Fabricated by Pyrophosphoric Acid Anodizing Peer-reviewed

Tatsuya Kikuchi, Osamu Nishinaga, Daiki Nakajima, Jun Kawashima, Shungo Natsui, Norihito Sakaguchi, Ryosuke O. Suzuki

SCIENTIFIC REPORTS　4　7411　2014/12

DOI： 10.1038/srep07411 　

ISSN： 2045-2322
Numerical Analysis of Carbon Monoxide-Hydrogen Gas Reduction of Iron Ore in a Packed Bed by an Euler-Lagrange Approach Peer-reviewed

Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE　45　(6)　2395-2413　2014/12

DOI： 10.1007/s11663-014-0132-x 　

ISSN： 1073-5615

eISSN： 1543-1916
Fabrication of anodic porous alumina via anodizing in cyclic oxocarbon acids Peer-reviewed

Tatsuya Kikuchi, Daiki Nakajima, Jun Kawashima, Shungo Natsui, Ryosuke O. Suzuki

APPLIED SURFACE SCIENCE　313　276-285　2014/09

DOI： 10.1016/j.apsusc.2014.05.204 　

ISSN： 0169-4332

eISSN： 1873-5584
Rapid reduction of titanium dioxide nano-particles by reduction with a calcium reductant Peer-reviewed

Tatsuya Kikuchi, Masumi Yoshida, Shiki Matsuura, Shungo Natsui, Etsuji Tsuji, Hiroki Habazaki, Ryosuke O. Suzuki

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS　75　(9)　1041-1048　2014/09

DOI： 10.1016/j.jpcs.2014.04.016 　

ISSN： 0022-3697

eISSN： 1879-2553
Self-Ordering Behavior of Anodic Porous Alumina via Selenic Acid Anodizing Peer-reviewed

Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

ELECTROCHIMICA ACTA　137　728-735　2014/08

DOI： 10.1016/j.electacta.2014.06.078 　

ISSN： 0013-4686

eISSN： 1873-3859
Stable mesh-free moving particle semi-implicit method for direct analysis of gas-liquid two-phase flow Peer-reviewed

Shungo Natsui, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

CHEMICAL ENGINEERING SCIENCE　111　286-298　2014/05

DOI： 10.1016/j.ces.2014.02.038 　

ISSN： 0009-2509

eISSN： 1873-4405
Fabrication of Anodic Porous Alumina by Squaric Acid Anodizing Peer-reviewed

Tatsuya Kikuchi, Tsuyoshi Yamamoto, Shungo Natsui, Ryosuke O. Suzuki

ELECTROCHIMICA ACTA　123　14-22　2014/03

DOI： 10.1016/j.electacta.2013.12.186 　

ISSN： 0013-4686

eISSN： 1873-3859
The Particle Simulation of Blast Furnace Processing Peer-reviewed

Shungo Natsui

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　100　(11)　788-794　2014

ISSN： 0021-1575

eISSN： 1883-2954
Multiphase Particle Simulation of Gas Bubble Passing Through Liquid/Liquid Interfaces Peer-reviewed

Shungo Natsui, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

MATERIALS TRANSACTIONS　55　(11)　1707-1715　2014

DOI： 10.2320/matertrans.M2014245 　

ISSN： 1345-9678

eISSN： 1347-5320
Effect of Powder-Liquid Interaction on Their Accumulation Behavior in Packed Bed Peer-reviewed

Shin Kikuchi, Shigeru Ueda, Tatsuya Kon, Ryo Inoue, Shungo Natsui, Hiroshi Nogami

ISIJ INTERNATIONAL　54　(6)　1244-1250　2014

DOI： 10.2355/isijinternational.54.1244 　

ISSN： 0915-1559

eISSN： 1347-5460
Fabrication of Anodic Nanoporous Alumina via Acetylenedicarboxylic Acid Anodizing Peer-reviewed

Tatsuya Kikuchi, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

ECS ELECTROCHEMISTRY LETTERS　3　(7)　C25-C28　2014

DOI： 10.1149/2.0071407eel 　

ISSN： 2162-8726

eISSN： 2162-8734
Analysis of the Burden Descending Behavior in an Enlarged Shaft Furnace for Ferro-Coke Production by DEM Peer-reviewed

Tatsuya Kon, Shungo Natsui, Shigeru Ueda, Ryo Inoue, Seiji Enoeda, Tatsuro Ariyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　100　(5)　1-8　2014

DOI： 10.2355/tetsutohagane.100.593 　

ISSN： 0021-1575

eISSN： 1883-2954
Recent Progress on Advanced Blast Furnace Mathematical Model Based on Discrete Method

Tatsuro Ariyama, Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Shin Kikuchi, Hiroshi Nogami

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　100　(2)　198-210　2014

DOI： 10.2355/tetsutohagane.100.198 　

ISSN： 0021-1575

eISSN： 1883-2954
Influence of Cohesive Zone Thickness on Gas Flow in Blast Furnace Analyzed by DEM-CFD Model Considering Low Coke Operation Peer-reviewed

Tatsuya Kon, Shungo Natsui, Shohei Matsuhashi, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

STEEL RESEARCH INTERNATIONAL　84　(11)　1146-1156　2013/11

DOI： 10.1002/srin.201300025 　

ISSN： 1611-3683

eISSN： 1869-344X
Modeling of liquid flow in the lower part of blast furnace by MPS method Peer-reviewed

Tatsuya Kon, Shungo Natsui, Shin Kikuchi, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

5th International conference on modeling and simulation of metallurgical processes in steelmaking.　10　2013/09
Simulation Model of Powder Movement in Packed Bed by Discrete Element Method Peer-reviewed

Shin Kikuchi, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Shungo Natsui, Taturo Ariyama

5th International conference on modeling and simulation of metallurgical processes in steelmaking.　9　2013/09
Rapid fabrication of self-ordered porous alumina with 10-/sub-10-nm-scale nanostructures by selenic acid anodizing Peer-reviewed

Osamu Nishinaga, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

SCIENTIFIC REPORTS　3　2748　2013/09

DOI： 10.1038/srep02748 　

ISSN： 2045-2322
Reaction Behavior in Packed Bed Considering Bed Structure and Reaction Properties of Particles Peer-reviewed

Ryo Shibasaki, Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　99　(6)　391-400　2013/06

DOI： 10.2355/tetsutohagane.99.391 　

ISSN： 0021-1575

eISSN： 1883-2954
Discrete Element Study of Fines Clogging a Packed Bed for the Low Carbon Ironmaking Process

S. Natsui, S. Kikuchi, T. Kon, S. Ueda, R. Inoue, T. Ariyama

Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure　B25　2013/03
Analysis of Liquid Dripping in Ironmaking Based on Particle Method

T. Kon, S. Natsui, S. Ueda, R. Inoue, T. Ariyama

Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure　B30　2013/03
Effect of High Reactivity Coke for Mixed Charge in Ore Layer on Reaction Behavior of Each Particle in Blast Furnace Peer-reviewed

Shungo Natsui, Ryo Shibasaki, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　53　(10)　1770-1778　2013

DOI： 10.2355/isijinternational.53.1770 　

ISSN： 0915-1559

eISSN： 1347-5460
Influence of Physical Properties of Melt on Liquid Dripping in Packed Bed Analyzed by MPS Method Peer-reviewed

Kon, Tatsuya, Natsui, Shungo, Ueda, Shigeru, Inoue, Ryo, Ariyama, Tatsuro

ISIJ INTERNATIONAL　53　(4)　590-597　2013

DOI： 10.2355/isijinternational.53.590 　

ISSN： 0915-1559

eISSN： 1347-5460
Descending Behavior of Particles in Vertical Type Coke Oven by Cold Model and DEM Calculation Peer-reviewed

Tatsuya Kon, Katsutoshi Kojima, Shungo Natsui, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　98　(9)　1-10　2012/09

DOI： 10.2355/tetsutohagane.98.459 　

ISSN： 0021-1575
Analysis of Heat and Mass Transfer in a Packed Bed by Considering Particle Arrangement Peer-reviewed

Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Junya Kano, Ryo Inoue, Tatsuro Ariyama, Hiroshi Nogami

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　98　(7)　341-350　2012/07

DOI： 10.2355/tetsutohagane.98.341 　

ISSN： 0021-1575

eISSN： 1883-2954
Advanced gas-solid flow simulation in blast furnace by Eulerian-Lagrangian approach

S. Natsui, T. Kon, S. Ueda, J. Kano, R. Inoue, T. Ariyama, H. Nogami

SCANMET IV, 4th International Conference on Process Development in Iron and Steelmaking　2　59-68　2012/06
Enhancement of reducing agent reactivity for mitigating CO2 emissions from ironmaking process

S. Ueda, T. Kon, S. Natsui, R. Inoue, T. Ariyama

SCANMET IV, 4th International Conference on Process Development in Iron and Steelmaking　2　9-18　2012/06
Modeling of liquid flow in the lower part of blast furnace by particle method

T. Kon, S. Natsui, R. Soda, S. Ueda, R. Inoue, A. Tatsuro

SCANMET IV, 4th International Conference on Process Development in Iron and Steelmaking　2　41-50　2012/06

DOI： 10.2355/isijinternational.51.41 　
Wettability Model Considering Three-Phase Interfacial Energetics in Particle Method Peer-reviewed

Shungo Natsui, Rikio Soda, Tatsuya Kon, Shigeru Ueda, Junya Kano, Ryo Inoue, Tatsuro Ariyama

MATERIALS TRANSACTIONS　53　(4)　662-670　2012/04

DOI： 10.2320/matertrans.M2011330 　

ISSN： 1345-9678

eISSN： 1347-5320
Gas-solid flow simulation of fines clogging a packed bed using DEM-CFD Peer-reviewed

Shungo Natsui, Shigeru Ueda, Hiroshi Nogami, Junya Kano, Ryo Inoue, Tatsuro Ariyama

CHEMICAL ENGINEERING SCIENCE　71　274-282　2012/03

DOI： 10.1016/j.ces.2011.12.035 　

ISSN： 0009-2509
DEM-CFD Model Considering Softening Behavior of Ore Particles in Cohesive Zone and Gas Flow Analysis at Low Coke Rate in Blast Furnace Peer-reviewed

Hiroyuki Kurosawa, Shouhei Matsuhashi, Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　52　(6)　1010-1017　2012

DOI： 10.2355/isijinternational.52.1010 　

ISSN： 0915-1559
Evaluation of Coke Mixed Charging Based on Packed Bed Structure and Gas Permeability Changes in Blast Furnace by DEM-CFD Model Peer-reviewed

Shouhei Matsuhashi, Hiroyuki Kurosawa, Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　52　(11)　1990-1999　2012

DOI： 10.2355/isijinternational.52.1990 　

ISSN： 0915-1559
Numerical Simulation of Dripping Behavior of Droplet in Packed Bed Using Particle Method Peer-reviewed

Tatsuya Kon, Shungo Natsui, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　52　(9)　1565-1573　2012

DOI： 10.2355/isijinternational.52.1565 　

ISSN： 0915-1559
Analysis on Non-Uniform Gas Flow in Blast Furnace Based on DEM-CFD Combined Model Peer-reviewed

Shungo Natsui, Shigeru Ueda, Hiroshi Nogami, Junya Kano, Ryo Inoue, Tatsuro Ariyama

STEEL RESEARCH INTERNATIONAL　82　(8)　964-971　2011/08

DOI： 10.1002/srin.201000292 　

ISSN： 1611-3683

eISSN： 1869-344X
Development of Advanced Mathematical Model for Three-dimensional Gas-Solid Flow in Blast Furnace by Combining DEM and CFD

Shungo Natsui, Shigeru Ueda, Hiroshi Nogami, Ryo Inoue, Tatsuro Ariyama

6th European Coke and Ironmaking Congress　(5)　1-10　2011/06/27
Dynamic Behavior of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD

Shigeru Ueda, Shungo Natsui, Ryo Inoue, Tatsuro Ariyama

6th European Coke and Ironmaking Congress　(17)　1-8　2011/06/27

DOI： 10.2355/isijinternational.51.51 　
DEVELOPMENT OF BLAST FURNACE SIMULATOR BASED ON COMBINED APPROACH OF DISCRETE ELEMENT METHOD AND COMPUTATIONAL FLUID DYNAMICS Peer-reviewed

Hiroshi Nogami, Shungo Natsui, Shigeru Ueda, Junya Kano, Tatsuro Ariyama

Proc. 2011 GUTHRIE SYMPOSIUM　2011/06/06
Development of Blast Furnace Operation Simulator by Combining DEM and CFD

Shungo Natsui, Shigeru Ueda, Hiroshi Nogami, Junya Kano, Ryo Inoue, Tatsuro Ariyama

The 7th Japan-Korea Workshop on Science and Technology of Ironmakin and Steelmaking　31-39　2011/01/06
Dynamic Analysis of Gas and Solid Flows in Blast Furnace with Shaft Gas Injection by Hybrid Model of DEM-CFD Peer-reviewed

Shungo Natsui, Shigeru Ueda, Hiroshi Nogami, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　51　(1)　51-58　2011

DOI： 10.2355/isijinternational.51.51 　

ISSN： 0915-1559
Simultaneous Three-dimensional Analysis of Gas-Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics Peer-reviewed

Shungo Natsui, Hiroshi Nogami, Shigeru Ueda, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　51　(1)　41-50　2011

DOI： 10.2355/isijinternational.51.41 　

ISSN： 0915-1559
Penetration Effect of Injected Gas at Shaft Gas Injection in Blast Furnace Analyzed by Hybrid Model of DEM-CFD Peer-reviewed

Shungo Natsui, Shigeru Ueda, Hiroshi Nogami, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　51　(9)　1410-1417　2011

DOI： 10.2355/isijinternational.51.1410 　

ISSN： 0915-1559
Recent Progress and Future Perspective on Ironmaking for CO2 Mitigation

Tatsuro ARIYAMA, Shigeru UEDA, Shungo NATSUI, Ryo INOUE, Michitaka SATO

German-Japanese Workshop on Challenges in Ironmaking　5-11　2010/07/10
Dynamic analysis of gas and solid flows in blast furnace with shaft gas injection by hybrid model of DEM-CFD

Shungo NATSUI, Shigeru UEDA, Hiroshi NOGAMI, Junya KANO, Ryo INOUE, Tatsuro ARIYAMA

German-Japanese Workshop on Challenges in Ironmaking　16-20　2010/07/10
Sensitivity Analysis of Physical Parameters in Discrete Element Method Compared with Blast Furnace Cold Model Experiments Peer-reviewed

Shungo Natsui, Shigeru Ueda, Fan Zhengyun, Junya Kano, Ryo Inoue, Tatsuro Ariyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　96　(1)　1-10　2010/01

DOI： 10.2355/tetsutohagane.96.1 　

ISSN： 0021-1575

eISSN： 1883-2954
Characteristics of Solid Flow and Stress Distribution Including Asymmetric Phenomena in Blast Furnace Analyzed by Discrete Element Method Peer-reviewed

Shungo Natsui, Shigeru Ueda, Zhengyun Fan, Nils Andersson, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　50　(2)　207-214　2010

DOI： 10.2355/isijinternational.50.207 　

ISSN： 0915-1559

eISSN： 1347-5460
Influences of Physical Properties of Particle in Discrete Element Method on Descending Phenomena and Stress Distribution in Blast Furnace Peer-reviewed

Shigeru Ueda, Shungo Natsui, Zhengyun Fan, Hiroshi Nogami, Rikio Soda, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　50　(7)　981-986　2010

DOI： 10.2355/isijinternational.50.981 　

ISSN： 0915-1559
Transient Behavior of Burden Descending and Influence of Cohesive Zone Shape on Solid Flow and Stress Distribution in Blast Furnace by Discrete Element Method Peer-reviewed

Zhengyun Fan, Shungo Natsui, Shigeru Ueda, Tianjun Yang, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　50　(7)　946-953　2010

DOI： 10.2355/isijinternational.50.946 　

ISSN： 0915-1559
Recent Progress and Future Perspective on Mathematical Modeling of Blast Furnace Peer-reviewed

Shigeru Ueda, Shungo Natsui, Hiroshi Nogami, Jun-ichiro Yagi, Tatsuro Ariyama

ISIJ INTERNATIONAL　50　(7)　914-923　2010

DOI： 10.2355/isijinternational.50.914 　

ISSN： 0915-1559
Influence of Blast Furnace Inner Volume on Solid Flow and Stress Distribution by Three Dimensional Discrete Element Method Peer-reviewed

Zhengyun Fan, Satoru Igarashi, Shungo Natsui, Shigeru Ueda, Tianjun Yang, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　50　(10)　1406-1412　2010

DOI： 10.2355/isijinternational.50.1406 　

ISSN： 0915-1559
Recent Activity on the Development of Advanced Mathematical Model of Blast Furnace in Japan Invited

Tatsuro ARIYAMA, Shigeru UEDA, Shungo NATSUI, Junya KANO, Ryo INOUE, Hiroshi NOGAMI

International Conference on Advances in the Theory of Ironmaking and Steelmaking (ATIS 2009)　154-161　2009/12/09
Current Technology and Future Aspect on CO2 Mitigation in Japanese Steel Industry Invited Peer-reviewed

Tatsuro Ariyama, Shigeru Ueda, Shungo Natsui, Ryo Inoue, Michitaka Sato

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL　16　55-62　2009/10

ISSN： 1006-706X
Development of Advanced Blast Furnace Simulation Model Based on Discrete Element Method Peer-reviewed

Shungo Natsui, Shigeru Ueda, Fan Zhen-yun, Junya Kano, Hiroshi Nogami, Ryo Inoue, Tatsuro Ariyama

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL　16　1092-1096　2009/10

ISSN： 1006-706X
Optimization of Physical Parameters of Discrete Element Method for Blast Furnace and Its Application to the Analysis on Solid Motion around Raceway Peer-reviewed

Shungo Natsui, Shigeru Ueda, Masashi Oikawa, Zhengyun Fan, Junya Kano, Ryo Inoue, Tatsuro Ariyama

ISIJ INTERNATIONAL　49　(9)　1308-1315　2009

DOI： 10.2355/isijinternational.49.1308 　

ISSN： 0915-1559

eISSN： 1347-5460

Show all ︎Show first 5

Misc. 172

硫化鉄添加スラグ電解による溶鉄中トランプエレメントの同時除去

安蒜雅弘, 夏井俊悟, 埜上洋

材料とプロセス　38　(1)　PS-1　2025/03
吹き込みガス物性がレースウェイ形状に及ぼす影響の解析

加納楓, 夏井俊悟, 埜上洋

材料とプロセス　38　(1)　PS-9　2025/03
水素還元製鉄シャフト炉内の熱流動および還元進行挙動の解析

髙橋亮, 夏井俊悟, 埜上洋

材料とプロセス　38　(1)　PS-20　2025/03
Enhancement of Cu migration from molten iron by molten oxide electrolysis

Shungo Natsui, Kota Mori, Satoshi Honna, Hiroshi Nogami

Abstract of 2nd Symposium on Carbon Ultimate Utilization Technologies for the Global Environment (CUUTE-2)　C-3-1-02　2024/12
銅含有溶融鉄-溶融スラグ界面の電気化学的挙動の動力学解析

夏井俊悟, 本名怜之, 守光太, 伊藤昭久, 早坂未穂, 埜上洋

第56回溶融塩化学討論会要旨集　56　66-67　2024/11
Development of Convergence Engineering Simulation Technique based on the Image Data obtained by X-ray Computed Tomography for Ironmaking Packed Bed Deformation

Shungo Natsui, Ryusho Honda, Hiroshi Nogami

9TH ECIC - 9TH EUROPEAN COKE AND IRONMAKING CONGRESS, coal, coke, biocoal, biocoke, biochar and iron reductions Proceedings　9　ecic_054　2024/10
シャフト炉充填層に発生する粉体の挙動に関する固気二相流解析

花田有生, 夏井俊悟, 埜上洋

材料とプロセス　36　(2)　468　2024/09
銅含有溶融鉄-溶融スラグ界面における電気化学反応による銅移行の検討

守光太, 夏井俊悟, 埜上洋

材料とプロセス　36　(2)　494　2024/09
高炉レースウェイ内粒子に作用する力の数値解析

松田琉生, 夏井俊悟, 埜上洋

材料とプロセス　36　(2)　441　2024/09
数値解析による還元に伴う焼結鉱の構造・軟化変形挙動の定量的評価

本田隆翔, Kim Jeong-In, 夏井俊悟, 埜上洋

材料とプロセス　36　(440)　2024/09
懸垂銅精鉱小塊の燃焼試験

高橋純一, 後藤優子, 伊藤昭久, 夏井俊悟, 埜上洋

資源・素材講演集　10　(2)　2401-08-04　2024/09
⾼速度イメージングとDeep Learning⽀援による銅マット-スラグ形成の理解に向けた現状と将来展望

夏井俊悟, 後藤優子, 高橋純一, 埜上洋

資源・素材講演集　11　(2)　3507-19-12　2024/09
銅精鉱燃焼挙動に及ぼすFe/SiO2質量比の影響

三宅渉太, 後藤優子, 夏井俊悟, 埜上洋

資源・素材講演集　11　(2)　1601-05-01　2024/09
Development of reverse engineering technology of the high-temperature reduction-softening phenomena of iron ore pellets bed using high-energy X-ray CT

夏井俊悟, Devi Singh Chauhan, Yongxiang Yang, Allert Adema, Jan van, der Stel, 本田隆翔, 埜上洋

材料とプロセス　37　(2)　487　2024/09
電気化学インピーダンス分光法による分極時の銅含有溶融鉄/溶融スラグ界面電気特性の解析

本名怜之, 夏井俊悟, 埜上洋

材料とプロセス　37　(2)　538　2024/09
シャフト炉における水素多量吹込み時の3次元DEM-CFD反応解析

岩永大熙, 照井光輝, 市川和平, 廣澤寿幸, 松井貴, 山本哲也, 夏井俊悟, Andrey Stephan Siahaan, 埜上洋

製銑科学技術コンソーシアム第3回産学連携研究委員会資料　2024/07
還元率を考慮した焼結鉱塑性変形・流動の動力学モデルによる充填層変形解析

夏井俊悟, 本田隆翔, 埜上洋

材料とプロセス　37　(1)　21-22　2024/03
高炉シャフト充填層空隙内粉体運動の固気二相流解析

埜上洋, 花田有生, 夏井俊悟

材料とプロセス　37　(1)　5-6　2024/03
気液界面に設置した回転円筒を用いた液膜伸張と界面更新による物質移動高速化

泉池直哉, 埜上洋, 夏井俊悟

材料とプロセス　37　(1)　PS-2　2024/03
電気化学的交流インピーダンス法による分極中の溶融鉄／溶融スラグ界面変形に及ぼす物性評価

本名怜之, 埜上洋, 夏井俊悟

材料とプロセス　37　(1)　PS-21　2024/03
FeとSiO2の比率が銅精鉱燃焼挙動に及ぼす影響

三宅渉太, 埜上洋, 夏井俊悟

材料とプロセス　37　(1)　PS-22　2024/03
FeOx-SiO2界面反応のその場観察

後藤優子, 川西咲子, 高橋純一, 夏井俊悟, 埜上洋

資源・素材講演集　10　(2)　3401-05-03　2023/09
Numerical simulation on the effect of various chute dimensions on burden distribution during the charging process in a blast furnace

Andrey Stephan Siahaan, Shungo Natsui, Hiroshi Nogami

Proceedings of METEC & 6th ESTAD (European Steel Technology and Application Days)　I16　2023/06
Novel numerical approach for sintered iron ore plastic deformation phenomena

Shungo Natsui, Mizuki Tanaka, Ryusho Honda, Andrey Stephan Siahaan, Hiroshi Nogami

I17　2023/06
Fluid Physics of Writing with Fountain Pen

Sohei Sukenaga, Shungo Natsui, Shigeru Ueda

Bulletin of the Iron and Steel Institute of Japan　28　(4)　210-216　2023/04
Development of dynamic model of collision and coalescence for molten matte droplets in copper smelting reaction shaft considering interfacial deformation Peer-reviewed

Yuko Goto, Shungo Natsui, Hiroshi Nogami

2023 TMS Annual Meeting & Exhibition Proceedings　2023/03/23
Numerical Analysis for Reduction Behavior of;an;Iron;Oxide Pellet in CO-CO-H2O-N2 Mixed Gas

Jeong-In Kim, Shungo Natsui, Andrey Stephan Siahaan, Hiroshi Nogami

CAMP-ISIJ　36　2　2023/03
Two-phase flow analysis on powder behavior in packed bed of blast furnace

Y. Hanada, S. Natsui, H. Nogami

CAMP-ISIJ　36　PS-15　2023/03
Three-dimensional analysis of particle and gas motion in blast furnace raceway

R. Matsuda, S. Natsui, H. Nogami

CAMP-ISIJ　36　PS-19　2023/03
Accelerated copper migration to slag by anodic reaction at the interface between molten iron containing copper and molten slag

K. Mori, S. Natsui, H. Nogami

CAMP-ISIJ　36　PS-21　2023/03
Dynamic model of sintered iron ore plastic deformation considering reduction degree

R. Honda, J.I.Kim,S. Natsui, H. Nogami

CAMP-ISIJ　36　PS-18　2023/03
The effect of chute rotation rates on burden distribution of the 1/4 scale of a blast furnace

A. Siahaan, S. Natsui, H. Nogami, T. Iwanaga, Y. Miki

CAMP-ISIJ　36　1　2023/03
Examination of reaction mechanism by in-situ observation of combustion behavior of copper concentrate granules Peer-reviewed

Jun-ichi Takahashi, Shungo Natsui, Akihisa Itoh, Hiroshi Nogami

Copper2022 (copper international conference) Vol.3: The Igor Wilkomirsky Symposium on Pyrometallurgy, edited by Instituto de Ingenieros de Minas de Chile (IIMCh)　635　2022/11
溶融CaCl2-CaO 中TiO2 電解還元に及ぼすカソード電極への振動・回転印加の影響

山本玲維, 夏井俊悟, 埜上洋

電気化学会溶融塩委員会第54回溶融塩化学討論会講演要旨集　50-5151　2022/09
熱流動解析による境膜剥ぎ取り型熱交換器内の伝熱促進機構の検討

吉川颯, 菊池亮, 立谷大輔, 金井智哉, 夏井俊悟, 河合秀樹, 埜上洋

化学工学会第53回秋季大会講演研究発表講演プログラム集(熱工学部会シンポジウム)　AC102　2022/09
粒子-流体シミュレーションによるレースウェイの不安定挙動の動力学的解析

35　510　2022/09
3次元DEM-CFDモデルを用いたコークス混合による鉱石層の還元性向上

松永亮太郎, 廣澤寿幸, 深田喜代志, 三木祐司, 夏井俊悟, Andrey Stephan Siahaan, 埜上洋

材料とプロセス　35　522　2022/09
気流存在下の充填層内粉体挙動の基礎的検討

6-7　2022/09
還元率を考慮した焼結鉱塑性変形の動力学モデル

夏井俊悟, 田中瑞樹, Andrey Stefan Siahaan, 埜上洋

日本鉄鋼協会高温プロセス部会「次世代水素富化高炉における塊状帯制御研究会」中間報告会資料　22-23　2022/09
高温酸素気流中における各種硫化物の燃焼挙動

9　(2)　1201-08-02　2022/09
シリカ含有銅精鉱小塊の燃焼パターン解析

9　(2)　2103-09-05　2022/09
境膜剥ぎ取り型熱交換器内の温度分布解析による伝熱促進機構の検討

吉川颯, 夏井俊悟, 埜上洋

材料とプロセス　35　PS-20　2022/03
溶融塩電解を用いたTiO2還元反応に対するカソード電極への回転印加の影響

35　PS-18　2022/03
高炉レースウェイの模型実験による粒子旋回挙動の解析

和田大輝, 夏井俊悟, 埜上洋

材料とプロセス　35　PS-21　2022/03
シャフト炉における水素多量吹込み時の3次元DEM-CFD反応解析

35　56　2022/03
ファニングの式による軟化溶融を伴うスラグ粒子充填層の通気性評価

大野光一郎, 前田敬之, 国友和也, 喜多村佳輝, 助永壮平, 夏井俊悟

材料とプロセス　35　1　2022/03
銅を含む炭素飽和溶融鉄-溶融酸化物界面におけるアノード反応挙動

35　39　2022/03
高速度イメージングとDeep Learning支援による銅マット-スラグ形成場マルチフィジックスの開拓

3K0101-08-06.　2022/03
乾式製錬炉内液滴合一挙動解析に向けたSPH法計算モデルの一検討

オンライン

3K0301-06-06　2022/03
Formation of plasma electrolytic oxide film with excellent surface microstructure uniformity

Miu Sato, Mana Iwai, Tatsuya Kikuchi, Daiki Nakajima, Junji Nunomura, Yoshiyuki Ohtani, Shungo Natsui

2021/12
3-Dimensional Analysis of Reduction Behavior of Single Iron Oxide Particle in Multi-Component Reduction Gas

Jeong-In Kim, Shungo Natsui, Hiroshi Nogami

Japan Society for the Promotion of Science, 199th Ironmaking 54th Committee Meeting Proceedings　199　(2)　14-1-14-16　2021/12
Copper Separation from Molten Carbon-saturated Iron via Molten Oxide Electrolysis

Takahiro Sato, Shungo Natsui, Hiroshi Nogami

The 53rd Symposium on Molten Salt Chemistry　53　1A11　2021/11
Basic study of actual copper concentrate combustion pattern classification by deep learning

Shungo Natsui, Iori Nishimura, Akihisa Ito, Hiroshi Nogami

Vol.8（2021） No.2　8　(2)　1K0506-12-02　2021/09
Analysis of blockage behavior of narrow channels in the blast furnace packed bed by DEM-CFD simulation

Daichi Tsukada, Shungo Natsui, Hiroshi Nogami

CAMP-ISIJ　34　(2)　336　2021/09
Deformation behavior analysis of the packed bed in the blast furnace cohesive zone using the Bingham fluid model

Mizuki Tanaka, Shungo Natsui, Hiroshi Nogami

CAMP-ISIJ　34　(2)　338　2021/09
Elucidation of the effect of coke deterioration on gas-liquid permeability and future research issues Invited

Shungo Natsui

CAMP-ISIJ　34　(2)　182symp, No.3　2021/09
Fast kinetic model of sinter softening deformation

Shungo Natsui, Mizuki Tanaka, Siahaan Andrey Stephan, Hiroshi Nogami

CAMP-ISIJ　34　(2)　339　2021/09
Analysis of Clogging Behavior of Narrow Path with Powder-Fluid Flow in Blast Furnace Peer-reviewed

Daichi Tsukada, Shungo Natsui, Hiroshi Nogami

Proceedngs of European Steel Technology and Application Days (ESTAD2021)　session 51 ironmaking, No. 5　2021/09
SPH simulations of packed bed deformation in cohesive zone of blast furnace with Bingham fluid model Peer-reviewed

Mizuki Tanaka, Shungo Natsui, Hiroshi Nogami

Proceedings of European Steel Technology and Application Days (ESTAD2021)　session 43 ironmaking, No. 4　2021/09
Deep learning for coke degradation recognition Peer-reviewed

Shungo Natsui, Hiroshi Nogami

Proceedings of European Steel Technology and Application Days (ESTAD2021)　session 20 ironmaking, No. 5　2021/09
Void structure analysis in particle deformation packed bed

Hiroshi Nogami, Takuto Yamawaki, Shungo Natsui

15-1　2021/06
Oxidation removal of Cu in iron to molten slag by electrochemical method

Takahiro Sato, Shungo Natsui, Hiroshi Nogami

B-10　2021/06
Clogging of Coke Bed due to Its Deforming and Dispersed Phase Invited

Shungo Natsui

Ferrum　26　(4)　208-211　2021/04
回転円筒面上の液膜伸張によるガス吸収の高速化

高翔宇, 夏井俊悟, 埜上洋

材料とプロセス　34　PS-5　2021/03
SPH法を用いた還元鉄鉱石の変形に基づく高炉融着帯内充填層の変形挙動解析

田中瑞樹, 夏井俊悟, 埜上洋

材料とプロセス　34　PS-10　2021/03
溶鉄中トランプエレメントの分離を目指した溶融スラグ電解法

佐藤丘郭, 夏井俊悟, 埜上洋

材料とプロセス　34　PS-6　2021/03
高炉充填層内の狭小流路における粉体・流体による閉塞挙動解析

塚田大智, 夏井俊悟, 埜上洋

材料とプロセス　34　PS-11　2021/03
熱流動解析に基づく境膜剥ぎ取り型熱交換器の伝熱促進評価

瀬尾大成, 夏井俊悟, 埜上洋

材料とプロセス　34　119　2021/03
高炉レースウェイの冷間モデルによる粒子-流体運動の定量化

上田誠也, 埜上洋, 夏井俊悟

材料とプロセス　34　81　2021/03
3-Dimensional Analysis of Reduction Behavior of Iron Ore Particle with Complex;Shape

Jeong-In Kim, Shungo Natsui, Hiroshi Nogami

CAMP-ISIJ　34　77　2021/03
マルチフィジックス・シミュレーションによる高炉内閉塞予測への応用展開

夏井俊悟, 埜上洋

高温プロセス部会「Part2 製銑プロセスにおける計測技術の現状と高度化に向けた課題シンポジウム資料　2021/03
粉を含むコークス充填層構造の動力学・幾何データ解析

夏井俊悟, 埜上洋, 照井光輝, 柏原佑介, 村尾明紀, 三木祐司

材料とプロセス　34　80　2021/03
エチドロン酸ポーラスアルミナ皮膜のフォトルミネッセンス特性

菊地竜也, 秋谷俊太, 國本海斗, 鈴木亮輔, 夏井俊悟

表面技術協会第143回講演大会概要集　2021/03
四ホウ酸アンモニウム水溶液を用いたアルミニウムのアノード酸化におけるPEO皮膜の成長挙動

佐藤美羽, 岩井愛, 菊地竜也, 鈴木亮輔, 中島大希, 布村順司, 大谷良行, 夏井俊悟

表面技術協会第143回講演大会概要集　2021/03
溶融塩化物中のカソード電析物形態に関する熱収支の考察

澁谷凌太, 夏井俊悟, 鈴木亮輔, 菊地竜也, 埜上洋

電気化学会第52回溶融塩化学討論会概要集　2020/10
懸垂した銅精鉱小塊の燃焼挙動のその場観察による反応メカニズムの検討

西村伊織, 夏井俊悟, 伊藤昭久, 埜上洋

資源・素材2020（仙台）－2020年度資源・素材関係学協会合同秋季大会概要集－　2020/09
コークス粒子の粉化を考慮した充填層内空隙形態の3次元評価

平井東, 夏井俊悟, 埜上洋

材料とプロセス　2020/09
3-Dimensional Analysis of Reduction Behavior of Iron Ore Particle

Jeong-In Kim, Shungo Natsui, Hiroshi Nogami

CAMP-ISIJ　2020/09
ディープラーニングによる3次元コークス変形認識システムの検討

夏井俊悟, 平井東, 埜上洋

材料とプロセス　2020/09
Nanostructure Control of Aluminium Surface via Anodizing and Emergence of Superhydrophilicity/Superhydrophobicity

Tatsuya Kikuchi, Daiki Nakajima, Ryunosuke Kondo, Ryosuke O. Suzuki, Shungo Natsui

Functional Materials　40　(6)　24-30　2020/06
コークス熱間破壊と粉を考慮した充填構造内部の気相流動解析

平井東, 夏井俊悟, 埜上洋

材料とプロセス　2020/03
Titanium Production via Titanium Sulfide

R. O. Suzuki, Y. Yashima, N. Suzuki, E. Ahmadi, S. Natsui, T. Kikuchi

MATEC Web of Conferences　321　07003-07003　2020
Publisher: EDP Sciences
DOI： 10.1051/matecconf/202032107003 　

eISSN： 2261-236X

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A new metallurgical process via titanium sulfide from ilmenite is proposed and experimentally approved: It consists of several stages; 1) The ilmenite ore is exposed to gaseous CS₂ to selectively sulfurize to FeS, which is wet-chemically removed. 2) The residual oxide is again exposed to CS₂ to form TiS₂. 3) TiS₂ is electrochemically reduced to metallic Ti using molten CaCl₂-CaS as an application of OS process. TiFeO₃ was exposed to Ar-CS₂ mixed gas flow at 1173 K to form the mixture of FeS+TiO₂. FeS was easily separated by immersing in H₂SO₄ solution at 313 K. After recovery of TiO₂, it was converted completely to TiS₂ by the second sulfurization with CS₂. TiS₂ could be reduced to Ti powder by calciothermic reduction and simulteneous electrolysis in a CaS-CaCl₂ melt for about 6 hours at 1173 K and 3.0 V. The impurity decreased to a low level such as 0.021 mass%S due to very small solubility of S in a-Ti. However, 1.06 mass%O remained because of wide solubility of oxygen in a-Ti and water contamination in initial CaCl₂.
Numerical Analysis of Interfacial Morphology and Dispersion Behavior of High-Temperature Melts – Application of Smoothed Particle Hydrodynamics to Metallurgical Processing Analysis – Invited Peer-reviewed

Shungo Natsui, Ryota Nashimoto, Kazui Tonya, Akinori Sawada, Tatsuya Kikuchi, Ryosuke O. Suzuki

Journal of MMIJ　135　(8)　71-82　2019/08
鉄ケイ酸塩スラグの還元過程における表面張力変化

助永壮平, 川西咲子, 打越雅仁, 石原真吾, 夏井俊悟, 大野光一郎, 齊藤敬高, 中島邦彦, 柴田浩幸

資源・素材(Web)　2019　2019
Porous Anodic Oxide Films on Aluminum

Tatsuya KIKUCHI, Mana IWAI, Daiki NAKAJIMA, Shungo NATSUI, Ryosuke O. SUZUKI

Journal of The Surface Finishing Society of Japan　69　(12)　554-561　2018/12

DOI： 10.4139/sfj.69.554 　
Advanced Functional Aluminum Material Based on Nanostructured Surface Invited Peer-reviewed

Tatsuya Kikuchi, Daiki Nakajima, Hiroki Ikeda, Ryunosuke Kondo, Kai Kawahara, Kaito Kunimoto, Mana Iwai, Yusuke Suzuki, Shunta Akiya, Akimasa Takenaga, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

Light Metals Japan　68　(4)　211-218　2018/04

DOI： 10.2464/jilm.68.211 　
ナノファイバー形成アルミニウム表面の高速超親水化挙動

中島大希, 菊地竜也, 吉岡大騎, 松島永佳, 上田幹人, 夏井俊悟, 鈴木亮輔

電気化学秋季大会講演要旨集(CD-ROM)　2018　2018
Heat and Mass Transfer Characteristics in the Non-uniform Packed Bed : New Designing Ironmaking Process Using Discrete Element Simulation Model

22　(4)　195-198　2017
Publisher: 日本鉄鋼協会
ISSN： 1341-688X
Numerical Analysis of Blast Furnace by Discrete Element Type Model Invited

Shungo Natsui

JAPANESE JOURNAL OF MULTIPHASE FLOW　30　(2)　166-173　2016/06

DOI： 10.3811/jjmf.30.166 　
ピロりん酸アノード酸化におけるアルミナナノファイバーの成長機構と超親水性発現

中島大希, 菊地竜也, 夏井俊悟, 鈴木亮輔

表面技術協会講演大会講演要旨集　131st　53-54　2015/02/20

ISSN： 0917-2947
硝酸アンモニウムを用いたナノポーラス酸化タングステンの作製

川嶋潤, 菊地竜也, 夏井俊悟, 鈴木亮輔

表面技術協会講演大会講演要旨集　131st　264　2015/02/20

ISSN： 0917-2947
アノード酸化によるアルミナナノファイバーの作製

菊地竜也, 中島大希, 川嶋潤, 西長理, 夏井俊悟, 坂口紀史, 鈴木亮輔

表面技術協会講演大会講演要旨集　131st　255　2015/02/20

ISSN： 0917-2947
溶融塩/溶融メタル界面流動のシミュレーション

高井比文, 梨元涼太, 夏井俊悟, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　46th　71-72　2014/11/13
LiCl‐KClを用いたCO₂分解挙動の電気化学測定とその場観察

夏井俊悟, 北村三佳, 若松貴文, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　46th　67-68　2014/11/13
CaCl₂‐CaO溶融塩電解によるチタン酸化物の還元とアノードガス発生

羽田大将, 野口宏海, 夏井俊悟, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　46th　53-54　2014/11/13
LiCl‐Li₂CO₃系溶融塩の電解によるCO₂の分解挙動

若松貴文, 松浦史弥, 北村三佳, 夏井俊悟, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　46th　45-46　2014/11/13
CaCl₂‐CaO溶融塩を用いたCO₂ガス分解によるCOガス富化

松浦史弥, 羽田大将, 若松貴文, 夏井俊悟, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　46th　51-52　2014/11/13
CaCl₂‐CaO溶融塩電解によるCaTiO₃の還元とカソード電極形状

野口宏海, 羽田大将, 夏井俊悟, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　46th　47-48　2014/11/13
鉄鋼におけるマルチスケール・マルチフィジックス計算材料科学高炉プロセスの粒子シミュレーション Invited

夏井俊悟

ふぇらむ　19　(11)　788-794　2014/11
Publisher: 日本鉄鋼協会
ISSN： 1341-688X
カルシウム還元を用いた電解コンデンサ用マイクロポーラス合金の作製

菊地竜也, 吉田雅純, 夏井俊悟, 幅崎浩樹, 鈴木亮輔

電気化学秋季大会講演要旨集　2014　91　2014/09/27
二酸化炭素のカルシウム還元におけるグラファイト電極の影響

石田龍馬, 菊地竜也, 夏井俊悟, 坂口紀史, 鈴木亮輔

日本金属学会講演概要(CD-ROM)　155th　ROMBUNNO.P65　2014/09/10

ISSN： 1342-5730
Introduction of young researchers

Shungo Natsui

Journal of MMIJ　130　(8, 9)　449　2014/08
CO2 Decomposition by Electrolysis in Molten LiCl-Li2CO3

Takafumi Wakamatsu, Takuya Uchiyama, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

65th Annual Meeting of the International Society of Electrochemistry (ISE)　2014/08
CO2 Decomposition by Electrolysis in CaCl2-CaO Melt

Ryosuke O. Suzuki, Takuya Uchiyama, Takafumi Wakamatsu, Koya Otake, Mika Kitamura, Shungo Natsui, Norihito Sakaguchi, Tatsuya Kikuchi

65th Annual Meeting of the International Society of Electrochemistry (ISE)　2014/08
Direct Observation of CO2 Decomposition Behavior by Electro-reduction in LiCl-KCl Eutectic Melt

Shungo Natsui, Mika Kitamura, Takafumi Wakamatsu, Tatsuya Kikuchi, Ryosuke O. Suzuki

65th Annual Meeting of the International Society of Electrochemistry (ISE), Lausanne, Switzerland.　2014/08
DEM-CFDを用いた低炭素高炉の熱物質移動シミュレーション

夏井俊悟, 菊地竜也, 鈴木亮輔

粉体工学会2014年度春期研究発表会講演論文集　24-25　2014/05
セレン酸アノード酸化による高規則性ナノポーラスアルミナの作製

西長理, 菊地竜也, 夏井俊悟, 鈴木亮輔

電気化学会大会講演要旨集　81st　74　2014/03/29
二酸化炭素のカルシウム還元における鉄触媒の影響とCNT合成

石田龍馬, 石田龍馬, 菊地竜也, 夏井俊悟, 坂口紀史, 鈴木亮輔

日本金属学会講演概要(CD-ROM)　154th　ROMBUNNO.P028　2014/03/07

ISSN： 1342-5730
LiCl‐Li₂CO₃溶融塩の電解によるCO₂の分解

若松貴文, 内山拓也, 夏井俊悟, 菊地竜也, 鈴木亮輔, 畑中雄平, 大野光一郎

日本金属学会講演概要(CD-ROM)　154th　ROMBUNNO.477　2014/03/07

ISSN： 1342-5730
ジルコニアと溶融塩を用いたCO2の分解

鈴木亮輔, 菊地竜也, 坂口紀史, 上田幹人, 熊谷剛彦, 夏井俊悟, 荻野勲, 内山拓也, 若松貴文, 石田龍馬, 北村三佳, 松浦史弥, 羽田大将

炭素循環型製鉄研究会最終報告会「炭素循環型スマート製鉄(iACRES)による低炭素化への貢献」　27　31　2014/03
3次元マルチフェイズ型粒子法によるメタルエマルジョンの数値解析

高井比文, 夏井俊悟, 鈴木亮輔

材料とプロセス　27　PS-6　2014/03
Flow Analysis of the Molten Metal-Slag-Gas by a Three-dimensional Multiphase Particle Method

Shungo Natsui, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

31-9　2014/03
セレン酸アノード酸化皮膜のナノ構造制御

西長理, 菊地竜也, 夏井俊悟, 鈴木亮輔

化学系学協会北海道支部冬季研究発表会講演要旨集(CD-ROM)　2014　ROMBUNNO.1C17　2014/01/28
Recent Progress on Advanced Blast Furnace Mathematical Model Based on Discrete Method

19　(2)　198-210　2014
Publisher: 日本鉄鋼協会
ISSN： 1341-688X
Recent Progress on Advanced Blast Furnace Mathematical Models Based on Discrete Method

Tatsuro Ariyama, Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Shin Kikuchi, Hiroshi Nogami

ISIJ INTERNATIONAL　54　(7)　1457-1471　2014

DOI： 10.2355/isijinternational.54.1457 　

ISSN： 0915-1559

eISSN： 1347-5460
Porous anodic oxide films on aluminum and their nanofabrication

Tatsuya Kikuchi, Daiki Nakajima, Osamu Nishinaga, Shungo Natsui, Ryosuke O. Suzuki

Keikinzoku/Journal of Japan Institute of Light Metals　64　(10)　476-482　2014
Publisher: Japan Institute of Light Metals
DOI： 10.2464/jilm.64.476 　

ISSN： 0451-5994
溶融塩電解によるCO₂ガスからのCOガス生成

松浦史弥, 内山拓也, 若松貴文, 夏井俊悟, 菊地竜也, 鈴木亮輔

日本鉄鋼協会日本金属学会両支部合同冬季講演大会概要集　2013　31　2014
スクアリン酸ナノポーラスアルミナの成長挙動

山本堅士, 菊地竜也, 夏井俊悟, 鈴木亮輔

日本鉄鋼協会日本金属学会両支部合同冬季講演大会概要集　2013　28　2014
溶融CaCl₂‐CaOの電解によるCO₂ガスの分解

内山拓也, 若松貴文, 夏井俊悟, 坂口紀史, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　45th　59-60　2013/11/20
LiCl‐Li₂CO₃溶融塩の電解によるCO₂の分解

若松貴文, 内山拓也, 夏井俊悟, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　45th　57-58　2013/11/20
3次元マルチフェイズ型粒子法による溶融塩の流れの数値解析

夏井俊悟, 高井比文, 菊地竜也, 鈴木亮輔

溶融塩化学討論会要旨集　45th　13-14　2013/11/20
チタンのアノード酸化におけるナノチューブ成長界面の詳細観察

佐渡惇貴, 菊地竜也, 夏井俊悟, 鈴木亮輔

表面技術協会講演大会講演要旨集　128th　156　2013/09/10

ISSN： 0917-2947
スクアリン酸アノード酸化によるナノポーラスアルミナの作製

山本堅士, 菊地竜也, 夏井俊悟, 鈴木亮輔

表面技術協会講演大会講演要旨集　128th　170　2013/09/10

ISSN： 0917-2947
チタニアナノ微粒子のCa還元によるポーラスチタンの作製

吉田雅純, 吉田雅純, 菊地竜也, 夏井俊悟, 幅崎浩樹, 鈴木亮輔

日本金属学会講演概要(CD-ROM)　153rd　ROMBUNNO.596　2013/09/03

ISSN： 1342-5730
LiCl‐Li₂O溶融塩へのCO₂溶解度およびCO₂の分解

若松貴文, 内山拓也, 夏井俊悟, 菊地竜也, 鈴木亮輔

日本金属学会講演概要(CD-ROM)　153rd　ROMBUNNO.516　2013/09/03

ISSN： 1342-5730
MPS法による充填構造が液相挙動に与える影響の解析

昆竜矢, 夏井俊悟, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　26　(2)　ROMBUNNO.46　2013/09/01

ISSN： 1882-8922
溶融CaCl₂‐CaOとZrO₂固体電解質を用いたCO₂ガスの分解挙動

内山拓也, 若松貴文, 夏井俊悟, 坂口紀史, 菊地竜也, 鈴木亮輔

材料とプロセス(CD-ROM)　26　(2)　ROMBUNNO.124　2013/09/01

ISSN： 1882-8922
粒子法シミュレーションによる気液流れ解析の基礎的検討

夏井俊悟, 高井比文, 菊地竜也, 鈴木亮輔

材料とプロセス(CD-ROM)　26　(2)　ROMBUNNO.21　2013/09/01

ISSN： 1882-8922
Reaction Behavior in Packed Bed Considering Bed Structure and Reaction Properties of Particles

Ryo Shibasaki, Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN　99　(6)　391-400　2013/06

DOI： 10.2355/tetsutohagane.99.391 　

ISSN： 0021-1575

eISSN： 1883-2954
離散要素法を用いた充填層内の粉体運動解析

菊地辰, 夏井俊悟, 昆竜矢, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　26　(1)　ROMBUNNO.16　2013/03/01

ISSN： 1882-8922
高炉下部を対象とした離散要素法による充填層内の粉体運動解析

菊地辰, 夏井俊悟, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　26　(1)　ROMBUNNO.PS-5　2013/03/01

ISSN： 1882-8922
MPS法によるホールドアップ現象に与える融体物性の影響解析

昆竜矢, 夏井俊悟, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　26　(1)　ROMBUNNO.14　2013/03/01

ISSN： 1882-8922
高炉モデル開発の至近の進歩と課題

有山達郎, 夏井俊悟, 昆竜也, 植田滋, 井上亮

材料とプロセス(CD-ROM)　26　(1)　ROMBUNNO.TO7　2013/03/01

ISSN： 1882-8922
離散要素法を用いた竪型乾留炉内スケールアップ時の固体流れ解析

昆竜矢, 夏井俊悟, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(2)　ROMBUNNO.93　2012/09/01

ISSN： 1882-8922
コークス混合装入時の高炉融着帯の通気性解析

有山達郎, 松橋昌平, 夏井俊悟, 昆竜也, 植田滋, 井上亮

材料とプロセス(CD-ROM)　25　(2)　ROMBUNNO.102　2012/09/01

ISSN： 1882-8922
粒子法シミュレーションを用いた高炉内鉱石の軟化溶融滴下挙動解析

植田滋, 夏井俊悟, 昆竜矢, 加納純也, 井上亮, 有山達郎, 埜上洋

材料とプロセス(CD-ROM)　25　(2)　ROMBUNNO.TO4　2012/09/01

ISSN： 1882-8922
DEM‐CFDモデルによる高反応性コークス使用時の充填層内反応解析

柴崎亮, 夏井俊悟, 昆竜矢, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(2)　ROMBUNNO.96　2012/09/01

ISSN： 1882-8922
Euler‐Lagrange法によるコークス反応性と配置が及ぼす鉱石還元性への影響の解析

夏井俊悟, 柴崎亮, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(2)　ROMBUNNO.98　2012/09/01

ISSN： 1882-8922
分散現象を考慮した高炉数式モデルの発展と課題

埜上洋, 夏井俊悟, 昆竜矢, 植田滋, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.TO14　2012/03/01

ISSN： 1882-8922
コークス混合装入時の高炉内ガス流れ挙動

松橋昌平, 夏井俊悟, 昆竜也, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.86　2012/03/01

ISSN： 1882-8922
DEM‐CFDによる不均一系充填層内反応解析

柴崎亮, 夏井俊悟, 昆竜矢, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.83　2012/03/01

ISSN： 1882-8922
DEM‐CFDによる高炉内充填層の動力学シミュレーション

夏井俊悟, 埜上洋, 植田滋, 昆竜矢, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.TO16　2012/03/01

ISSN： 1882-8922
高炉低炭素化を指向した製銑研究の課題と展望

植田滋, 夏井俊悟, 昆竜矢, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.17　2012/03/01

ISSN： 1882-8922
MPS法による融着帯下部からの液滴下モデルの構築

昆竜矢, 夏井俊悟, 曽田力央, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.TO19　2012/03/01

ISSN： 1882-8922
荷重軟化シミュレーションによるコークス混合装入時の通気性評価

黒澤弘行, 夏井俊悟, 昆竜矢, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.85　2012/03/01

ISSN： 1882-8922
Eulerian‐Lagrangianカップリングによる3次元充填構造を反映した高炉モデル

夏井俊悟, 昆竜矢, 植田滋, 井上亮, 有山達郎, 埜上洋

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.84　2012/03/01

ISSN： 1882-8922
高炉内解析のためのDEMモデル開発

植田滋, 夏井俊悟, 昆竜矢, 黒澤弘行, 松橋昌平, 加納純也, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.TO15　2012/03/01

ISSN： 1882-8922
MPS法による界面エネルギーを考慮した濡れ性モデル

夏井俊悟, 曽田力央, 昆竜矢, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　25　(1)　ROMBUNNO.47　2012/03/01

ISSN： 1882-8922
焼結鉱の軟化特性を考慮したDEM‐CFDによる高炉モデル

黒澤弘行, 夏井俊悟, 植田滋, 井上亮, 有山達郎, 加納純也, 埜上洋

材料とプロセス(CD-ROM)　24　(2)　ROMBUNNO.126　2011/09/01

ISSN： 1882-8922
MPS法による液滴運動の数値解析

夏井俊悟, 曽田力央, 昆竜矢, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　24　(2)　ROMBUNNO.121　2011/09/01

ISSN： 1882-8922
MPS法を用いた高炉炉下部での液流れシミュレーション

昆竜矢, 夏井俊悟, 曽田力央, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　24　(2)　ROMBUNNO.124　2011/09/01

ISSN： 1882-8922
DEM‐CFDによる充填層構造を考慮した伝熱・反応解析の検討

夏井俊悟, 埜上洋, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　24　(2)　ROMBUNNO.125　2011/09/01

ISSN： 1882-8922
DEM‐CFDによる低コークス比条件における高炉内ガス流れ変化

松橋昌平, 夏井俊悟, 植田滋, 加納純也, 井上亮, 有山達郎, 埜上洋

材料とプロセス(CD-ROM)　24　(2)　ROMBUNNO.127　2011/09/01

ISSN： 1882-8922
地域と世界に貢献する東北大学多元物質科学研究所環境調和を目指した鉄鋼プロセスの最適化

有山達郎, 井上亮, 植田滋, 夏井俊悟

Mater Integr　24　(4/5)　180-189　2011/06/01

ISSN： 1344-7858
DEM‐CFDによる物性変化する固体粒子層の解析

夏井俊悟, 植田滋, 加納純也, 井上亮, 有山達郎, 埜上洋

粉体工学会研究発表会講演論文集　2011　55-56　2011/05/24
固気二流体モデルと粒子追跡法の連成による高炉総合モデルの検討

夏井俊悟, 埜上洋, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　24　(1)　ROMBUNNO.86　2011/03/01

ISSN： 1882-8922
融着帯における粒子物性変化を考慮した高炉固気流れモデルの検討

黒澤弘行, 夏井俊悟, 植田滋, 井上亮, 有山達郎, 加納純也, 埜上洋

材料とプロセス(CD-ROM)　24　(1)　ROMBUNNO.88　2011/03/01

ISSN： 1882-8922
DEM‐CFDによる低コークス比操業を想定した高炉内固気流れ解析

松橋昌平, 夏井俊悟, 植田滋, 加納純也, 井上亮, 有山達郎, 埜上洋

材料とプロセス(CD-ROM)　24　(1)　ROMBUNNO.89　2011/03/01

ISSN： 1882-8922
シャフトガス吹き込み時のガス浸透へのガス流量及び高炉内容積の影響

夏井俊悟, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　24　(1)　ROMBUNNO.87　2011/03/01

ISSN： 1882-8922
DEM‐CFDを用いた充填粒子層内微粒子の蓄積メカニズムの解明

夏井俊悟, 植田滋, 加納純也, 有山達郎, 埜上洋, 河合秀樹

粉体工学会研究発表会講演論文集　2010　9-10　2010/11/30
サブミクロン酸化鉄の炭材外装による炭材内装鉱の還元高速化

有山達郎, 渡辺健太郎, 夏井俊悟, 植田滋, 井上亮

材料とプロセス(CD-ROM)　23　(2)　ROMBUNNO.TO18　2010/09/01

ISSN： 1882-8922
DEMによる高炉内固体流れへの高炉プロフィール及び炉芯の影響解析

五十嵐覚, ZHENGYUN Fan, 夏井俊悟, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　23　(2)　ROMBUNNO.138　2010/09/01

ISSN： 1882-8922
離散要素法による竪型乾留炉内の固体降下挙動解析

小島克利, 夏井俊悟, 植田滋, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　23　(2)　ROMBUNNO.140　2010/09/01

ISSN： 1882-8922
DEM‐CFDによるシャフトガス吹き込み時における高炉内固気流れ解析

夏井俊悟, 埜上洋, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　23　(2)　ROMBUNNO.11　2010/09/01

ISSN： 1882-8922
離散要素法による高炉内固体流れに及ぼす高炉内容積の影響

五十嵐覚, ZHENGYUN Fan, 夏井俊悟, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　23　(1)　ROMBUNNO.99　2010/03/01

ISSN： 1882-8922
離散要素法と有限体積法の連成による高炉内固気流れの3次元同時解析

夏井俊悟, 埜上洋, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　23　(1)　ROMBUNNO.100　2010/03/01

ISSN： 1882-8922
DEMによる高炉内装入物降下挙動の安定性解析

植田滋, 夏井俊悟, FAN Zhengyun, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　22　(2)　ROMBUNNO.117　2009/09/01

ISSN： 1882-8922
DEMによる固体流れ解析と連続体ガス流れモデルの連成による高炉内解析

夏井俊悟, 埜上洋, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　22　(2)　ROMBUNNO.116　2009/09/01

ISSN： 1882-8922
DEMによる高炉内非対称固体流れの解析

植田滋, 夏井俊悟, ANDERSSON Nils, 加納純也, 井上亮, 有山達郎, FAN Zhengyun

材料とプロセス(CD-ROM)　22　(1)　ROMBUNNO.120　2009/03/01

ISSN： 1882-8922
離散要素法を用いた高炉羽口上部における固体流れ解析

及川雅史, 夏井俊悟, 植田滋, 加納純也, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　22　(1)　ROMBUNNO.PS-8　2009/03/01

ISSN： 1882-8922
高炉冷間モデルとの比較によるDEM計算パラメータの最適化

夏井俊悟, 植田滋, 加納純也, FAN Zheng Yun, 及川雅史, 井上亮, 有山達郎

材料とプロセス(CD-ROM)　22　(1)　ROMBUNNO.119　2009/03/01

ISSN： 1882-8922
連続体モデルとDEMの結合による高炉内気相流動解析

埜上洋, 植田滋, 夏井俊悟, 加納純也, 有山達郎

材料とプロセス(CD-ROM)　21　(2)　ROMBUNNO.16　2008/09/01

ISSN： 1882-8922

Show all ︎Show first 5

Books and Other Publications 5

Treatise on Process Metallurgy

Hiroshi Nogami, Jun-ichiro Yagi, Shungo Natsui

Elsevier　2024/08

ISBN: 9780323854801
Process Modeling in Pyrometallurgical Engineering

Shungo Natsui, Kazui Tonya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki, Ko-ichiro Ohno, Sohei Sukenaga, Tatsuya Kon, Shingo Ishihara, Shigeru Ueda

MDPI Basel　2021/06

ISBN: 9783036506548
Fabrication of super water-repellent and super-oil-repellent aluminum surface by anodizing

Tatsuya Kikuchi, Fumiya Onoda, Ryunosuke Kondo, Daiki Nakajima, Ryosuke O. Suzuki, Shungo Natsui

2021/03
脱石油に向けたCO2資源化技術－化学的・生物的利用法を中心に－, 第Ⅱ編第12章 pp.125～136, 「CO2還元によるカーボンナノチューブの生成」

鈴木亮輔, 坂口紀史, 菊地竜也, 夏井俊悟

株式会社シーエムシー出版　2020/07/31
Extractive Metallurgy of Titanium – Conventional and Recent Advances in Prodution of Titanium" Chapter 14 "OS process: Calciothermic Reduction of TiO2 via CaO electrolysis in molten CaCl2

Ryosuke O. Suzuki, Shungo Natsui, Tatsuya Kikuchi

2019/11

Presentations 156

水素還元製鉄シャフト炉内の熱流動および還元進行挙動の解析

髙橋亮, 夏井俊悟, 埜上洋

第189回日本鉄鋼協会春季講演大会　2025/03/09
吹き込みガス物性がレースウェイ形状に及ぼす影響の解析

加納楓, 夏井俊悟, 埜上洋

第189回日本鉄鋼協会春季講演大会　2025/03/09
硫化鉄添加スラグ電解による溶鉄中トランプエレメントの同時除去

安蒜雅弘, 夏井俊悟, 埜上洋

第189回日本鉄鋼協会春季講演大会　2025/03/09
貴金属塩の文献収集ならびに委員会ホームページへの情報追加に関する活動報告（事業報告）

安田幸司, 大窪貴洋, 竹田修, 夏井俊悟, 関本英弘, 法川勇太郎, 金村祥平, 沼田昂真, 本林健太, 盧鑫, 山本貴之, 関口裕真

第216回溶融塩委員会、横浜、令和7年1月24日　2025/01/24
デルフト工科大学MPRRグループの研究活動と欧州における製鉄研究動向 Invited

夏井俊悟

日本鉄鋼協会鉄鋼CN検討会議水素以外の還元方法に関する討議WG　2025/01/10
分散相および融体界面の動力学シミュレーション Invited

夏井俊悟

DOWA技術者交流会　2024/12/23
Enhancement of Cu removal from molten iron by molten oxide electrolysis Invited

Shungo Natsui

2024 International Youth Symposium on Molten Salt Chemistry and Technology: Symposium on innovative metal extraction and recycling processes using molten salt (Plenary Speech), Sat. 14, Dec., 2024, Room 616, Metallurgical and Ecological Engineering Building 6th floor, University of Science and Technology Beijing (USTB).　2024/12/14
デルフト工科大学MPRRグループの研究活動と欧州における製鉄研究の最前線 Invited

夏井俊悟

製銑科学技術コンソーシアム12月期産学連携研究委員会企画テーマ講演　2024/12/05
銅含有溶融鉄-溶融スラグ界面の電気化学的挙動の動力学解析

夏井俊悟, 本名怜之, 守光太, 伊藤昭久, 早坂未穂, 埜上洋

第56回電気化学会溶融塩化学討論会.　2024/11/29
Enhancement of Cu migration from molten iron by molten oxide electrolysis

Shungo Natsui, Kota Mori, Satoshi Honna, Hiroshi Nogami

Nara, Japan, on 15 November 2024, C-3-1-02.　2024/11/15
オランダ・デルフト工科大学滞在報告と欧州における製鉄プロセス研究動向 Invited

夏井俊悟

日本鉄鋼協会製鉄プロセスフォーラム高炉におけるコークス使用量限界解明研究Gr.勉強会　2024/11/05
Development of Convergence Engineering Simulation Technique based on the Image Data obtained by X-ray Computed Tomography for Ironmaking Packed Bed Deformation

Shungo Natsui, Ryusho Honda, Hiroshi Nogami

9TH ECIC - 9TH EUROPEAN COKE AND IRONMAKING CONGRESS, coal, coke, biocoal, biocoke, biochar and iron reductions　2024/10/17
高速度イメージングとDeep Learning支援による銅精鉱小塊の燃焼パターン解析 Invited

夏井俊悟

一般社団法人粉体工学会第59回夏期シンポジウム「粉体の関わるマテリアルズインフォマティクス」　2024/10/04
銅精鉱燃焼挙動に及ぼすFe/SiO2質量比の影響

三宅渉太, 後藤優子, 夏井俊悟, 埜上洋

資源・素材2024(秋田)－2024年度資源・素材関係学協会合同秋季大会－　2024/09/12
電気化学インピーダンス分光法による分極時の銅含有溶融鉄/溶融スラグ界面電気特性の解析

本名怜之, 夏井俊悟, 埜上洋

第188回日本鉄鋼協会秋季講演大会　2024/09
Development of reverse engineering technology of the high-temperature reduction-softening phenomena of iron ore pellets bed using high-energy X-ray CT

Shungo Natsui, Devi Singh Chauhan, Yongxiang Yang, Allert Adema, Jan van, der Stel, 本Ryusho Honda, Hiroshi Nogami

188th CAMP-ISIJ　2024/09
⾼速度イメージングとDeep Learning⽀援による銅マット-スラグ形成の理解に向けた現状と将来展望

夏井俊悟, 後藤優子, 高橋純一, 埜上洋

資源・素材2024（秋田）－2024年度資源・素材関係学協会合同秋季大会－　2024/09
製鉄プロセスにおける新たな解析手法の開発と高温電気化学の応用 Invited

夏井俊悟

東京大学大学院工学系研究科マテリアル工学専攻マテリアル工学セミナー「マテリアル工学における高温物理化学の最前線　2024/08/08
オランダ・デルフト工科大学滞在と製鉄プロセス研究 Invited

夏井俊悟

表面技術協会北海度支部・北海道大学大学院工学研究院材料科学部門第159回マテリアルセミナー　2024/08/02
シャフト炉における水素多量吹込み時の3次元DEM-CFD反応解析

岩永大熙, 照井光輝, 市川和平, 廣澤寿幸, 松井貴, 山本哲也, 夏井俊悟, Andrey Stephan Siahaan, 埜上洋

製銑科学技術コンソーシアム第3回産学連携研究委員会　2024/07/05
Direct observation of the fayalite slag formation behaviour from large SiO2 grains

Yuko Goto, Sakiko Kawanishi, Shungo Natsui, Jun-ichi Takahashi, Hiroshi Nogami

The 12th International Conference on Molten Slag, Fluxes and Salts (MOLTEN2024)　2024/06/18
Polarization Effect on Interface between Copper-Containing Molten Iron and Slag

Shungo Natsui, Kota Mori, Satoshi Honna, Hiroshi Nogami

HTC2024(11th International Conference on High Temperature Capillarity), May 26–30, 2024, Sweden, Viking Line (M/S Gabriella), cruising between Stockholm and Helsinki and Ersta Konferens & Hotell in Stockholm.　2024/05/26
Effect of the Mixing Ratio of Fe and SiO2 on Combustion and Melt Formation in Copper Smelting

Shota Miyake, Yuko Goto, Shungo Natsui, Jun-ichi Takahashi, Hiroshi Nogami

HTC2024(11th International Conference on High Temperature Capillarity), May 26–30, 2024, Sweden, Viking Line (M/S Gabriella), cruising between Stockholm and Helsinki and Ersta Konferens & Hotell in Stockholm.　2024/05/26
Packed bed deformation analysis by dynamic model of sintered iron ore plastic deformation considering reduction degree

SHungo Natsui, Ryusho Honda, Hiroshi Nogami

187th CAMP-ISIJ　2024/03/14
Two-phase flow analysis on powder motion in void space of packed bed of blast furnace stack

Hiroshi Nogami, Yuki Hanada, Shungo Natsui

187th CAMP-ISIJ　2024/03/14
Acceleration of mass transfer by stretching liquid film and renewing the interface using a rotating cylinder installed at the gas-liquid interface

Naoya Izuchi, Hiroshi Nogami, Shungo Natsui

187th CAMP-ISIJ　2024/03/14
Evaluation of physical properties on molten iron/molten slag interface deformation during polarization using electrochemical AC impedance method

Satoshi Honna, Hiroshi Nogami, Shungo Natsui

187th CAMP-ISIJ　2024/03/14
Effect of Fe and SiO2 ratio on copper concentrate combustion

Shota Miyake, Hiroshi Nogami, Shungo Natsui

187th CAMP-ISIJ　2024/03/14
水素還元製鉄のための酸化鉄粒子の還元分布解析

2023대한금속·재료학회 추계학술대회　2023/10/26
銅含有溶融鉄-溶融スラグ界面における電気化学反応による銅移行の検討

守光太, 夏井俊悟, 埜上洋

日本鉄鋼協会第186回秋季講演大会 2023年9月22日　2023/09/22
シャフト炉充填層に発生する粉体の挙動に関する固気二相流解析

花田有生, 夏井俊悟, 埜上洋

日本鉄鋼協会第186回秋季講演大会　2023/09/21
Analysis of heat transfer in a reducing iron oxide pellet at CO and H2 atmosphere

金政仁, 夏井俊悟, Andrey Stephan Siahaan, 埜上洋

日本鉄鋼協会第186回秋季講演大会　2023/09/20
数値解析による還元に伴う焼結鉱の構造・軟化変形挙動の定量的評価

本田隆翔, 金政仁, 夏井俊悟, 埜上洋

日本鉄鋼協会第186回秋季講演大会　2023/09/20
高炉レースウェイ内粒子に作用する力の数値解析

松田琉生, 夏井俊悟, 埜上洋

日本鉄鋼協会第186回秋季講演大会　2023/09/20
Examination of heat transfer promotion mechanism in peel-off type heat exchanger using thermal fluid analysis

So Yoshikawa, Ryo Kikuchi, Daisuke Tachiya, Tomoya Kanai, Shungo Natsui, Hideki Kawai, Hiroshi Nogami

SCEJ 53rd Autumn Meeting　2023/09/14
In-situ observation of FeOx-SiO2 interfacial reaction

Yuko Goto, Sakiko Kawanishi, Jun-ichi Takahashi, Shungo Natsui, Hiroshi Nogami

MMIJ meeting 2023　2023/09/14
Combustion test of suspended copper concentrate tablet

Jun-ichi Takahashi, Yuko Goto, Akihisa Itoh, ShungoNatsui, Hiroshi Nogami

MMIJ meeting 2023　2023/09/13
3-Dimensional Analysis of Reduction and Heat Transfer in Single Iron Ore Particle

Jeong-In Kim, Shusei Kubota, Shungo Natsui, Nogami Hiroshi

SteelSIM2023, the 10th International Conference on Modelling and Simulation of Metallurgical Processes in Steelmaking　2023/09/11
3-D Analysis of Multi-phase Flow Behavior in Blast Furnace Raceway

Hiroshi Nogami, Daiki Wada, Ryusei Matsuda, Shungo Natsui

SteelSIM2023, the 10th International Conference on Modelling and Simulation of Metallurgical Processes in Steelmaking　2023/09/11
Numerical simulation on the effect of various chute dimensions on burden distribution during the charging process in a blast furnace

Andrey Stephan Siahaan, Shungo Natsui, Hiroshi Nogami

METEC & 6th ESTAD (European Steel Technology and Application Days)　2023/06/14
Novel numerical;approach for sintered iron ore;plastic deformation;phenomena

Shungo Natsui, Mizuki Tanaka, Ryusho Honda, Andrey Stephan Siahaan, Hiroshi Nogami

METEC & 6th ESTAD (European Steel Technology and Application Days)　2023/06/14
Numerical simulation on;he;effect of;various chute dimensions on;burden;distribution during;he charging;process in a;blast furnace

Andrey Stephan Siahaan, Shungo Natsui, Hiroshi Nogami

METEC & 6th ESTAD (European Steel Technology and Application Days)　2023/06/14
Development of dynamic model of collision and coalescence for molten matte droplets in copper smelting reaction shaft considering interfacial deformation

Yuko Goto, Shungo Natsui, Hiroshi Nogami

2023 TMS Annual Meeting & Exhibition　2023/03/21
Solid-gas two-phase flow analysis on behavior of powder generated in blast furnace packed bed

Y. Hanada, S. Natsui, H. Nogami

185th CAMP-ISIJ　2023/03/08
Three-dimensional analysis of particle and gas motion in a blast furnace raceway

R. Matsuda, S. Natsui, H. Nogami

185th CAMP-ISIJ　2023/03/08
Accelerated copper migration to slag by anodic reaction at the interface between molten iron containing copper and molten slag

K. Mori, S. Natsui, H. Nogami

185th CAMP-ISIJ　2023/03/08
Numerical simulation of sintered ore softening and deformation behavior varied by reducing process using X-CT

R. Honda, S. Natsui, H. Nogami

185th CAMP-ISIJ　2023/03/08
Numerical Analysis for Reduction Behavior of an Iron Oxide Pellet in CO-CO2-H2-H2O-N2 Mixed Gas

Jeong-In Kim, Shungo Natsui, Andrey Stephan Siahaan, Hiroshi Nogami

185th CAMP-ISIJ　2023/03/07
The effect of chute rotation rates on burden distribution of the 1/4 scale of a blast furnace

A. Siahaan, S. Natsui, H. Nogami, T. Iwanaga, Y. Miki

185th CAMP-ISIJ　2023/03/07
Examination of reaction mechanism by in-situ observation of combustion behavior of copper concentrate granules

Jun-ichi Takahashi, Shungo Natsui, Akihisa Itoh, Hiroshi Nogami

Copper2022 (copper international conference), Vol.3: The Igor Wilkomirsky Symposium on Pyrometallurgy, edited by Instituto de Ingenieros de Minas de Chile (IIMCh)　2022/11
3-Dimensional Analysis of Single Iron Ore Particle Having Irregular Shape

Jeong-In Kim, Shusei Kubota, Andrey Stephan Siahaan, Shungo Natsui, Nogami Hiroshi

The 1st International Symposium on Iron Ore Agglomerates SynOre 2022 Matsue, Japan　2022/11
Effect of vibration and rotation applied to the cathode electrode on TiO2 electroreduction in molten CaCl2-CaO

R. Yamamoto, S. Natsui, H. Nogami

The 54th Molten Salt Chemistry Symposium (MSC)　2022/09/30
Dynamic analysis of raceway instability by particle-fluid simulation

D. Wada, S. Natsui, H. Nogami

CAMP-ISIJ　2022/09/23
Improvement of reducibility of ore layer by coke mixing using 3D DEM-CFD model

R. Matsunaga, T. Hirosawa, K. Fukada, Y. Miki, S. Natsui, A. S. Siahaan, H. Nogami

CAMP-ISIJ　2022/09/23
Fundamental Study of Powder Behavior in Packed Bed in the Presence of Air Flow

D. Tsukada, S. Natsui, A. S. Seahaan, H. Kawai, H. Nogami

CAMP-ISIJ　2022/09/22
Dynamic model of sinter plastic deformation considering reduction rate

S. Natsui, M. Tanaka, T. Iwanaga, Y. Miki, H. Nogami

CAMP-ISIJ　2022/09/22
Investigation of heat transfer promotion mechanism in film-stripped heat exchanger by heat-hydraulic analysis

S. Yoshikawa, R. Kikuchi, D. Tatsuya, T. Kanai, S. Natsui, H. Kawai, H. Nogami

SCEJ 53rd Autumn Meeting　2022/09/14
Combustion Behaviors of Sulfide Regents in High Temperature Oxygen Gas Flow

H. Nogami, I. Nishimura

MMIJ meeting 2022　2022/09/06
Combustion pattern analysis of silica-containing copper concentrate lumps

S. Natsui, H. Nogami

MMIJ meeting 2022　2022/09/08
Dynamic Analysis of Raceway Formation

Hiroshi Nogami, Seiya Ueda, Shungo Natsui, Shinsuke Taya

, 29. August - 2. September 2022, Bremen, Germany.　2022/08
Trial of Electrochemical Separation of Tramp Elements in Molten Iron by Molten Oxide Electrolysis Invited

Shungo Natsui

The Electrochemical Society of Japan Hokkaido Branch 50th Anniversary Symposium　2022/06/11
Tracking of Dynamic High-Temperature Melt Interfaces from Recent Multiphysics and Data Analysis Perspectives Invited

Shungo Natsui

Japan Society for the Promotion of Science 69th Committee　2022/05/13
Droplet behavior on superhydrophobic surfaces and practical kinetic models Invited

Shungo Natsui

2021/12/10
表面微細構造の均一性に優れたプラズマ電解酸化皮膜の形成

佐藤美羽, 岩井愛, 菊地竜也, 中島大希, 布村順司, 大谷良行, 夏井俊悟

表面技術協会ARS2021研究発表会　2021/12/08
Thermal Fluid Analysis of Cohesive Zone of Blast Furnace Invited

Hiroshi Nogami, Shungo Natsui, Azuma Hirai, Jeongin Kim

Asia Steel 2021　2021/12/07
単一酸化鉄粒子の多成分ガス中での三次元還元挙動解析

Jeong-In Kim, 夏井俊悟, 埜上洋

日本学術振興会製銑第54委員会第199回研究会　2021/12/03
溶融酸化物電解による炭素飽和溶融鉄からのCu分離

佐藤丘郭, 夏井俊悟, 埜上洋

電気化学会第53回溶融塩化学討論会　2021/11/18
Dynamic simulation of dispersed phase and interfacial flow of melt in metallurgical process Invited

Shungo Natsui

Kyoto University 3rd non-ferrous metallurgical debate　2021/09/22
Deep Learningによる実銅精鉱燃焼パターン分類の基礎検討

夏井俊悟, 西村伊織, 伊藤昭久, 埜上洋

資源・素材学会2021年度資源・素材関係学協会合同秋季大会資源・素材2021(札幌)　2021/09/14
Analysis of Clogging Behavior of Narrow Path with Powder-Fluid Flow in Blast Furnace

Daichi Tsukada, Shungo Natsui, Hiroshi Nogami

European Steel Technology and Application Days (ESTAD2021)　2021/08/31
焼結鉱軟化変形の高速な動力学モデル

夏井俊悟, 田中瑞樹, Siahaan Andrey Stephan, 埜上洋

日本鉄鋼協会2021年秋季（第182回）講演大会, 2021. 9. 2-4, online.　2021/09/03
コークス劣化がコークス層通気･通液性に及ぼす影響の解明と今後の研究課題 Invited

夏井俊悟

日本鉄鋼協会2021年秋季（第182回）講演大会, 高温プロセス部会資源・エネルギーフォーラム/製鉄プロセスフォーラム共催「今後の世界情勢変化に対応した日本鉄鋼業の進むべき方向性」　2021/09/04
Bingham 流体モデルによる高炉融着帯内充填層の変形挙動解析

田中瑞樹, 夏井俊悟, 埜上洋

日本鉄鋼協会2021年秋季（第182回）講演大会, 2021. 9. 2-4, online.　2021/09/03
DEM-CFDシミュレーションによる高炉充填層内狭小流路の閉塞挙動解析

塚田大智, 夏井俊悟, 埜上洋

日本鉄鋼協会2021年秋季（第182回）講演大会, 2021. 9. 2-4, online.　2021/09/03
SPH simulations of packed bed deformation in cohesive zone of blast furnace with Bingham fluid model

Mizuki Tanaka, Shungo Natsui, Hiroshi Nogami

European Steel Technology and Application Days (ESTAD2021)　2021/08/31
Deep learning for coke degradation recognition

Shungo Natsui, Hiroshi Nogami

European Steel Technology and Application Days (ESTAD2021)　2021/08/31
Void structure analysis in particle deformed packed bed

Hiroshi Nogami, Takuto Yamawaki, Azuma Hirai, Shungo Natsui

2021/06/25
電気化学的方法による鉄中Cuの溶融スラグへの酸化除去

佐藤丘郭, 夏井俊悟, 埜上洋

2021 (令和3) 年度資源・素材学会東北支部総会・春季大会　2021/06/09
粉を含むコークス充填層構造の動力学・幾何データ解析

夏井俊悟, 埜上洋, 照井光輝, 柏原佑介, 村尾明紀, 三木祐司

日本鉄鋼協;回春季講演大会オンライン開催　2021/03/17
マルチフィジックス・シミュレーションによる高炉内閉塞予測への応用展開 Invited

夏井俊悟

日本鉄鋼協会第181回春季講演大会, シンポジウム　2021/03/18
3-Dimensional Analysis of Reduction Behavior of Iron Ore Particle with Complex Shape

Jeong-In Kim, Shungo Natsui, Hiroshi Nogami

日本鉄鋼協会第181回春季講演大会　2021/03/18
高炉レースウェイの冷間モデルによる粒子-流体運動の定量化

上田誠也, 埜上洋, 夏井俊悟

日本鉄鋼協会第181回春季講演大会　2021/03/17
熱流動解析に基づく境膜剥ぎ取り型熱交換器の伝熱促進評価

瀬尾大成, 夏井俊悟, 埜上洋

日本鉄鋼協会第181回春季講演大会　2021/03/18
高炉充填層内の狭小流路における粉体;流体による閉塞挙動解析

塚田大智, 夏井俊悟, 埜上洋

日本鉄鋼協会第181回春季講演大会　2021/03/17
溶鉄中トランプエレメントの分離を目指した溶融スラグ電解法

佐藤丘郭, 夏井俊悟, 埜上洋

日本鉄鋼協会第181回春季講演大会　2021/03/17
SPH法を用いた還元鉄鉱石の変形に基づく高炉融着帯内充填層の変形挙動解析

田中瑞樹, 夏井俊悟, 埜上洋

日本鉄鋼協会第181回春季講演大会　2021/03/17
Synchronized High-speed Microscopy and Thermo-analytical Measurement for sub-mm/sub-ms-scale Cathodic Behavior in Molten Salt Electrolysis Invited

Shungo Natsui, Ryota Shibuya, Hiroshi Nogami, Tatsuya Kikuchi, Ryosuke O. Suzuki

2021 TMS 150th Annual Meeting & Exhibition, Symposium "Advanced Real Time Imaging", Orlando, FL, USA.　2021/03/16
四ホウ酸アンモニウム水溶液を用いたアルミニウムのアノード酸化におけるPEO皮膜の成長挙動

佐藤美羽, 岩井愛, 菊地竜也, 鈴木亮輔, 中島大希, 布村順司, 大谷良行, 夏井俊悟

表面技術協会第143回講演大会　2021/03/04
エチドロン酸ポーラスアルミナ皮膜のフォトルミネッセンス特性

菊地竜也, 秋谷俊太, 國本海斗, 鈴木亮輔, 夏井俊悟

表面技術協会第143回講演大会　2021/03/04
Metal Production after Sulfurization of Oxide Invited

Ryosuke, O. Suzuki, Takumi Kaneko, Eltefat Ahmadi, Yuta Yashima, Shungo Natsui, Tatsuya Kikuchi

The 11th International Conference on Molten Slag, Fluxes and Salts (MOLTEN2021)　2021/02/22
Effects of Atmosphere and Melting Time on Surface Tension of Iron Silicate Melts

Sohei Sukenaga, Sakiko Kawanishi, Masahito Uchikoshi, Shingo Ishihara, Shungo Natsui, Ko-ichiro Ohno, Noritaka Saito, Kunihiko Nakashima, Masanori Tashiro, Hiroyuki Shibata

The 11th International Conference on Molten Slag, Fluxes and Salts (MOLTEN2020), (MOLTEN2021)　2021/02/15
Consideration of packed bed clogging phenomenon by the dynamic simulation and the geometric data analysis considering 3D shape of ironmaking raw material Invited

Shungo Natsui

Japan Society for the Promotion of Science Ironmaking 54th Committee　2020/12/10
Consideration of heat balance on the morphology of cathode depositions in molten chlorides

Ryota Shibuya, Shungo Natsui, Ryosuke Suzuki, Tatsuya Kikuchi, Hiroshi Nogami

2020/11/27
Fabrication of Sticky and Slippery Superhydrophobic Aluminum Surfaces Covered with Nanostructured Anodic Oxide

Tatsuya Kikuchi, Ryunosuke Kondo, Ryosuke O. Suzuki, Shungo Natsui, Daiki Nakajima

Pacific Rim Meeting on Electrochemical and Solid-State Science (PRiME 2020)　2020/10/06
Nanostructure of Anodic Porous Alumina Fabricated By Galvanostatic Anodizing in Etidronic Acid

Mana Iwai, Tatsuya Kikuchi, Ryosuke O. Suzuki, Shungo Natsui

Pacific Rim Meeting on Electrochemical and Solid-State Science (PRiME 2020)　2020/10/06
Recent progress in the dynamic analysis of the high temperature dispersion phase Invited

Shungo Natsui

Sumitomo Metal Mining Co., Ltd. Young Engineers Conference Special Lecture　2020/09/18
Effect of gas velocity distribution in void of coke bed on pressure drop

Azuma Hirai, Shungo Natsui, Hiroshi Nogami

CAMP-ISIJ(180th ISIJ meeting)　2020/09/16
3-Dimensional Analysis of Reduction Behavior of Iron Ore Particle

Jeong-In Kim, Shungo Natsui, Hiroshi Nogami

CAMP-ISIJ(180th ISIJ meeting)　2020/09/16
3-Dimensional Coke Degradation Recognition System by Using Deep Learning

Shungo Natsui, Azuma Hirai, Hiroshi Nogami

180th CAMP-ISIJ　2020/09/16
Examination of reaction mechanism by in-situ observation of combustion behavior of suspended copper concentrate

Iori Nishimura, Shungo Natsui, Akihisa Itoh, Hiroshi Nogami

2020/09/08
Thermoanalytical measurement;for understanding the cathodic deposition behavior in molten CaCl

Ryota Shibuya, Shungo Natsui, Ryosuke.O. Suzuki, Tatsuya Kikuchi, Hiroshi Nogami

The 9th International e-Conference on High Temperature Capillarity(e-HTC2020)
Smoothed Particle Hydrodynamics (SPH) Simulations of Binary Interfacial Flow of Liquid Iron and Molten Slag

Shungo Natsui, Kazui Tonya, Hiroshi Nogami, Ko-ichiro Ohno, Sohei Sukenaga, Tatsuya Kikuchi, Ryosuke. O. Suzuki

The 9th International e-Conference on High Temperature Capillarity(e-HTC2020)
コークス熱間破壊と粉を考慮した充填構造内部の気相流動解析

平井東, 夏井俊悟, 埜上洋

日本鉄鋼協会第179回春季講演大会　2020/03/18
Activity Report on Information-Gathering of Database Literatures for Molten Salts

Kouji Yasuda, Takahiro Ohukubo, Osamu Takeda, Shungo Natsui, Hidehiro Sekimoto

The 201st Molten Salt Committee of the Electrochemical Society　2020/01/30
Analysis and design of smelting process by multiphysics of dynamic high temperature dispersion phase

Shungo Natsui

2020/01/20
High temperature melt flow including interface in metallurgical process Invited

Shungo Natsui

2020/01/10
Multiphysics approach for transient behavior of dynamic dispersed phase in metallurgical process International-presentation Invited

Shungo Natsui

A Symposium on Smart Technology for Metallurgical Phenomena KPU-TU　2019/12/26
Detailed Numerical Modeling Approach for Clogging Phenomena in Coke Bed International-presentation Invited

Shungo Natsui, Hiroshi Nogami

Innovation of ironmaking technologies and future international collaboration 2019 -Toward highly efficient and ecological systems-, The 54th Committee on Ironmaking of Japan Society for Promotion of Science　2019/11/14
Side reaction during TiO2 electrolytic reduction using molten salt and its temporal change

Y. Haraguchi, S. Natsui, T. Kikuchi, R. O. Suzuki

The 51st Symposium on Electrochemical Chemistry of Molten Salt Chemistry　2019/10/25
A new thermal measurement method for cathodic reactions in molten salt electrolysis

R. Shibuya, S. Natsui, T. Kikuchi, R. O. Suzuki

The 51st Symposium on Electrochemical Chemistry of Molten Salt Chemistry　2019/10/25
Modeling and Analysis of Reactions in Blast Furnace International-presentation Invited

Hiroshi Nogami, Shungo Natsui

SIPS2019 - Sustainable Industrial Processing Summit, Usui International Symposium on Advanced Sustainable Iron and Steel Making (7th Intl. Symp. on Advanced Sustainable Iron and Steel Making　2019/10/23
Novel Approach for Digitalization of Multiple-Flow in Ironmaking Process International-presentation Invited

Shungo Natsui

International Workshop on Mineral Processing & Metallurgy, IMM2019, Sustainable Iron & Steelmaking Technology, 75th anniversary of the iron and steelmaking research activities in IMRAM.　2019/10/22
Fundamental simulation of mat-slag droplet formation in flash furnace shaft using SPH method

K. Tonya, S. Natsui, R.O.Suzuki, T. Kikuchi

MMIJ meeting 2019　2019/09/26
New trial of heat measurement method in molten salt electrolysis

R. Shibuya, S. Natsui, R. O. Suzuki, T. Kikuchi

MMIJ meeting 2019　2019/09/26
Combustion test of suspended copper concentrate

H. Nogami, I. Nishimura, S. Natsui

MMIJ meeting 2019　2019/09/24
Surface tension change during reduction of iron silicate melt

S. Sukenaga, S. Kawanishi, M. Uchikoshi, S. Ishihara, S. Natsui, K. Ohno, T. Saito, K. Nakajima, H. Shibata

MMIJ meeting 2019　2019/09/24
Numerical analysis of high temperature material process by discrete element method and its application technique Invited

Shungo Natsui

Thermo-Material Fluid Engineering Seminar hosted by Thermo-Material Fluid Engineering Subcommittee　2019/09/23
Spontaneous formation of colloidal metal cell flow by molten salt electrolysis

S. Natsui, T. Kikuchi, R. O. Suzuki

178th ISIJ meeting-JIM meeting 2019 Joint session　2019/09/12
Deformation analysis of softened particle bed

K. Baba, S. Natsui, H. Nogami

178th ISIJ meeting　2019/09/12
Evaluation of influence of hot coke strength on filling structure by 3D-scanning and MS-DEM

A. Hirai, S. Natsui, H. Nogami

178th ISIJ meeting　2019/09/12
Thermal behavior at the interface of the electrodeposited melt during electrolysis of molten salt

R. Shibuya, S. Natsui, R. O. Suzuki, T. Kikuchi

JIM meeting 2019　2019/09/12
Preparation of TiAl intermetallic compound using molten salt electrolysis and reduction of oxygen concentration

H. Tsuchii, S. Natsui, T. Kikuchi, R. O. Suzuki

JIM meeting 2019　2019/09/12
Preparation of low oxygen Sc2S3 by controlling CS2 vaporization temperature

Shungo Natsui

JIM meeting 2019　2019/09/12
Evaluation of local gas blockage due to softening of sintered ore layer by Euler-Lagrange method

S. Natsui, S. Ishihara, T. Kon, K. Ohno, H. Nogami

178th ISIJ meeting　2019/09/11
SPH Analysis of Flow in Packed Bed Considering Molten Iron-Slag-Coke Triplet

K. Tonya, S. Natsui, R.O.Suzuki, T. Kikuchi

178th ISIJ meeting　2019/09/11
Fabrication of slip-controllable oil-repellent aluminum by anodic oxidation / electrolytic etching

F. Onoda, T. Kikuchi, R.O. Suzuki, S. Natsui

140th Conference of Surface Technology Association　2019/09/09
Nanostructure of Porous Alumina Formed by Galvanostatic Anodizing in Sodium Tetraborate

T. Kikuchi, K. Kunimoto, H. Ikeda, T. Nakajima, R. O. Suzuki, S. Natsui

2019 Electrochemical Society Autumn Meeting　2019/09/05
Dynamic solid-liquid wetting behavior model by SPH method considering slip and rotation

K. Tonya, S. Natsui, R.O.Suzuki, T. Kikuchi

Joint Summer Session of JIM and ISIJ Hokaido branch　2019/07/05
Thermal behavior of cathode interface in molten eutectic salt electrolysis

Shungo Natsui

Joint Summer Session of JIM and ISIJ Hokaido branch　2019/07/05
SPH Simulations for the Binary Droplet Morphology Based on Fowkes Hypothesis Invited

Shungo Natsui

2nd International Symposium on Decommissioning and Waste Management, Organized by ARC-DeconRes, Kyunghee Univ., CMPM-IMRAM, and CFReND, Tohoku Univ.　2019/06/25
Titanium Production via Titanium Sulfide International-presentation

Ryosuke O. Suzuki, Yuta Yashima, Nobuyosshi Suzuki, Eltefat Ahmadi, Shungo Natsui, Tatsuya Kikuchi

14th World COnference on TItanium　2019/06/11
Attempt to digitize the lower part of blast furnace by multiphysics and data analysis Invited

Shungo Natsui

ISIJ 109th Ironmaking Subcommittee　2019/06/06
Titanium Production in CaCl2 Melt via TiS2 from TiFeO3 International-presentation

Ryosuke O. Suzuki, Yuta Yashima, Eltefat Ahmadi, Nobuyoshi Suzuki, Shungo Natsui, Tatsuya Kikuchi

11th International Symposium on Molten Salts Chemistry and Technology　2019/05/20
Molten iron-molten slag flow analysis considering wettability and slippage of coke surface by SPH method

K. Tonya, S. Natsui, R.O.Suzuki, T. Kikuchi

177th ISIJ meeting　2019/03/22
High temperature softening deformation behavior of tablet type samples containing iron oxide and simulated gangue components

K. Ohno, T. Maeda, K. Kunitomo, T. Handa, H. Konishi, T. Watanabe, S. Ishihara, S. Natsui

177th ISIJ meeting　2019/03/21
Effect of carbonaceous material layer on pressure drop during softening and melting of slag packed bed

K. Ohno, T. Maeda, K. KLunitomo, Y. Kitamura, S. Sukenga, S. Natsui

177th ISIJ meeting　2019/03/21
Topological analysis of local 3D structure formed by packed bed

A. Sawada, S. Natsui, T. Kikuchi, R. O. Suzuki

177th ISIJ meeting　2019/03/20
Prediction of pressure drop from packed structure data by pipe approximation

T. Kon, K. Ohno, S. Natsui, S. Ishihara

177th ISIJ meeting　2019/03/20
Gas generation reaction during electrolytic reduction of TiO2 molten salt

Yasushi Haraguchi, Ryota Shibuya, Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

164th JIM meeting 2019　2019/03/20
Creation of super-water-repellent aluminum material with high-speed superhydrophilicity and slip-off control by pyrophosphoric acid anodic oxidation Invited

T. Kikuchi, T. Nakajima, S. Natsui, R. O. Suzuki

139th Conference of Surface Technology Association　2019/03/18
Sealing treatment and nanostructure analysis of etidronate porous alumina

Y. Suzuki, T. Kikuchi, S. Natsui, R. O. Suzuki

139th Conference of Surface Technology Association　2019/03/18
Constant current anodic oxidation of aluminum using etidronic acid-Fabrication and nanostructure of high voltage porous alumina-

M. Iwai, T. Kikuchi, S. Natsui, R. O. Suzuki

139th Conference of Surface Technology Association　2019/03/18
Titanium smelting using sulfide Invited

R. O. Suzuki, T. Kikuchi, S. Natsui

5th Lecture Meeting of JIM Titanium Production Process and Functional Material Research Group "New Titanium Production Process"　2019/01/25
Synthesis of solid electrolyte SiS2 by CS2 gas sulfurization method

Y. Yashima, T. Kaneko, S. Natsui, T. Kikuchi, R. O. Suzuki, T. Watanabe, G. Nogami

2018 Joint Meeting of ISIJ and JIM Hokkaido branch　2019/01/10
流れと界面の不思議～高温融体の世界から地球温暖化まで～ Invited

夏井俊悟

やさしい科学技術セミナー　2016/09/17
Development of Fully-Lagrangian Numerical Simulation for Multi-phase Flow in Metallurgical Processes Invited

Shungo Natsui, Ryota Nashimoto, Tatsuya Kikuchi, Ryosuke O. Suzuki

The Eleventh Korea-Japan Workshop on Science and Technology in Ironmaking and Steelmaking　2016/08/05
SPH Analysis of Interfacial Flow of the Two Immiscible Melts”, 10th International Conference on Molten Slags

Shungo Natsui, Ryota Nashimoto, Tatsuya Kikuchi, Ryosuke O. Suzuki

10th International Conference on Molten Slags, Fluxes and Salts (Molten16)　2016/05/25
Particle-based Multiphase Flow Simulation for Low Carbon Ironmaking Design

Shungo Natsui, Tatsuya Kikuchi, Ryosuke O. Suzuki

Asia Steel International Conference 2015 (Asia Steel 2015)　2015/10/07
Dynamic Analysis of Interfacial Tension Instability by Gas Bubble Passing through Molten Metal-Slag Interfaces International-presentation

Shungo Natsui, Ryota Nashimoto, Hifumi Takai, Takehiko Kumagai, Tatsuya Kikuchi, Ryosuke O. Suzuki

Conference Of Metallurgists (COM 2015)　2015/08/23
Direct Observation of CO2 Decomposition Behavior by Electro-reduction in LiCl-KCl Eutectic Melt International-presentation

Shungo Natsui, Mika Kitamura, Takafumi Wakamatsu, Tatsuya Kikuchi, Ryosuke O. Suzuki

65th Annual Meeting of the International Society of Electrochemistry (ISE)　2014/09/04
Analysis of Heat and Mass Transfer in a Packed Bed by Considering Particle Arrangement Invited

Shungo Natsui, Tatsuya Kon, Shigeru Ueda, Ryo Inoue, Tatsuro Ariyama, Hiroshi Nogami

CAMP ISIJ　2014/03/21
Particle based simulation in material processing Invited

Shungo Natsui

natsui2013　2013/12/18
Numerical Study of Ironmaking Blast Furnace Process using Lagrangian Approach Invited

Shungo Natsui

natsui2013　2013/04/10
Recent Advanced Numerical Model of Blast Furnace Invited

Shungo Natsui

natsui2013　2012/04
回転円筒面上の液膜伸張によるガス吸収の高速化

高翔宇, 夏井俊悟, 埜上洋

日本鉄鋼協会第181回春季講演大会, 2021年3月17日(水)～19日(金), オンライン開催　2021/03/17
懸垂燃焼法による各種硫化物の燃焼過程可視化

埜上洋, 夏井俊悟, 伊藤昭久, 西村伊織

第51回可視化情報シンポジウム

Show all Show first 5

Industrial Property Rights 2

Information processing program, information processing device, data structure, and information processing method

Shungo Natsui, Hiroshi Nogami, Azuma Hirai

特許7693198

Property Type: Patent
鉄スクラップ中のトランプエレメントの電気化学的分離方法

夏井俊悟, 佐藤丘郭, 伊藤昭久, 埜上洋, 植田滋

特許7515880

Property Type: Patent

Research Projects 57

Dynamic analysis of dispersed phase formation of dilute elements at the potential-controlled molten iron-slag interface

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2025/06/27 - 2027/03/31
高エネルギーX線CTとMPH法による鉄鉱石の高温還元軟化現象のリバースエンジニアリング

夏井俊悟, 岩間崇之, 植田滋

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 国際共同研究加速基金(海外連携研究)

Institution: 東北大学, デルフト工科大学

2024/09 - 2027/03
X線CT利用による鉄鉱石高温還元変形過程の動力学モデリングの深化

Offer Organization: JFE21世紀財団

System: 大学研究助成(鉄鋼技術研究)

Category: JFE21世紀財団: 大学研究助成(鉄鋼技術研究)

2025/01 - 2026/12
溶融酸化物電解製鉄法を高効率化する新規電気化学システム設計

夏井俊悟

Offer Organization: 鉄鋼環境基金

System: 第45回（令和6年度）助成研究

2024/11 - 2026/10
Clarification of reaction-driven flows at high-temperature bimelt interfaces by electrochemical impedance spectroscopy and dynamics calculations

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2023/04/01 - 2026/03/31
Clarification of reaction-driven flows at high-temperature bimelt interfaces by electrochemical impedance spectroscopy and dynamics calculations

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2023/04/01 - 2026/03/31
SPH法によるアルミニウムドロス溶融・流動シミュレーション

夏井俊悟、小野英樹

Offer Organization: 富山大学

System: 令和７年度先進軽金属材料国際研究機構（ILM）共同利用・共同研究

2025/04 - 2026/03
溶融酸化物電解製鉄法の実証

夏井俊悟, 野田芳英

Offer Organization: スチールプランテック株式会社

2025/04 - 2026/03
Coupled analysis of measurement using 3D CT and numerical simulation for iron ore high temperature complex dynamic behavior

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2023/06/30 - 2025/03/31
溶融塩電解法によるマグネシウム製錬技術の確立

Offer Organization: 株式会社日本海水

2024/12 - 2025/03
SPH法を用いた乾式製錬炉内現象のモデル化とメカニズム解析

夏井俊悟, 後藤優子

Offer Organization: 東北大学-住友金属鉱山㈱数理解析技術部共同研究

2021/04 - 2025/03
「ゼロカーボン・スチール」の実現に向けた技術開発

Offer Organization: 日本鉄鋼連盟(日本製鉄株式会社, JFEスチール株式会社, 株式会社神戸製鋼所, 一般財団法人金属系材料研究開発センターJRCM)

System: 国立研究開発法人新エネルギー･産業技術総合開発機構 NEDO委託共同研究助成

2020/07 - 2025/03
高速度イメージングとDeep Learning支援による銅マット-スラグ形成場マルチフィジックスの開拓

Offer Organization: 資源・素材学会

System: 長期テーマプロジェクト (PJ)課題

2021/07 - 2024/01
減圧下における溶融酸化物電解法による溶鉄中の銅挙動の解明

夏井俊悟

Offer Organization: 日本鉄鋼協会

System: 第1回（2022年度助成開始）鉄鋼カーボンニュートラル研究助成

2022/12 - 2023/12
ゼロカーボン充填層型製鉄プロセスに向けた新規動力学モデル開拓

夏井俊悟

Offer Organization: 鉄鋼環境基金:

System: 環境研究助成

2022/11 - 2023/10
Development of Multiphysics at High-temperature Melt Interface with Electrodeposition Microcalorimetry

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research

Category: Grant-in-Aid for Scientific Research (B)

Institution: Tohoku University

2020/04/01 - 2023/03/31
リサイクル溶融鉄中トランプエレメントの分離を目指した溶融スラグ電解法の開発

Offer Organization: 公益財団法人中部電気利用基礎研究振興財団

2022/04 - 2023/03
製鉄プロセスの高度解析技術開発

Offer Organization: JFEスチール

System: 製鉄プロセス先端解析技術共同研究部門

2020/05 - 2023/03
懸垂銅精鉱小塊の燃焼試験

System: 住友金属鉱山株式会社-東北大学多元物質科学研究所共同研究(分担)

2019/04 - 2023/03
高温溶融体ソノ電解法に基づく新規チタン系材料の創成

Offer Organization: 公益財団法人泉科学技術振興財団

Category: (採択番号: 2021-J-060)

2021/10 - 2022/09
粒子法による鋳造解析の精度・安定性・速度向上

Offer Organization: 株式会社日立産業制御ソリューションズ

2021/04 - 2022/06
高温溶融体の電気化学測定とカロリメトリによる界面制御技術の開発

Offer Organization: 八洲環境技術振興財団

System: 2020年度研究開発・調査助成

2021/04 - 2022/03
Clarification of local instability mechanism of blast furnace by Euler-Lagrange method considering post-reaction strength of steelmaking raw material

Shungo Natsui

Offer Organization: ISIJ

Institution: Tohoku University

2020/04 - 2022/03
SPH法を用いた乾式製錬炉内現象のモデル化とメカニズム解析

Offer Organization: 住友金属鉱山㈱数理解析技術部との共同研究

2020/10 - 2021/03
Deep Learningと3次元幾何データを用いたコークス高温強度のキャラクタリゼーション

Offer Organization: 東北大学多元物質科学研究所

System: 2020年度多元研プロジェクト

2020/06 - 2021/03
N相界面の動力学と位相的データ解析に基づく高炉下部の定量評価 Competitive

夏井俊悟

Offer Organization: 鉄鋼環境基金

System: 環境研究助成

2019/11 - 2020/10
Kinetics of submillisecond scale flow in between the melt interface and the colloidal metal Competitive

Shungo Natsui

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists

Category: Grant-in-Aid for Early-Career Scientists

Institution: Hokkaido University

2018/04/01 - 2020/03/31

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We examined to trace the behavior of the molten high-temperature metal as a dispersed phase in detail in various systems. For the first time, here we reported the time change of electrode surface on the sub-millisecond/micrometre scale in molten LiCl-KCl-CaCl2 at 823 K in Ar atmosphere. When the potential was applied, liquid Ca-Li alloy droplets grew on the electrode, and the black colloidal metal moved on the electrode surface to form a network structure. The attraction, which operates on the interface between the different phases is explicitly defined as London dispersion force using the Fowkes theoretical model, and the interfacial tension can be calculated using the sum of the attraction magnitudes corresponding to the surrounding via computationa fluid dynamics simulation (SPH). These results will provide important information about the microscale mixing action near the electrode, and accelerate the development of metallothermic reduction of oxides.
高速なチタン共還元法確立を目指したコロイダルメタルの電解流動誘起 Competitive

夏井俊悟

Offer Organization: 公益財団法人高橋産業経済研究財団

System: 研究助成

2019/04 - 2020/03
大規模離散要素による劣質コークス層内溶融スラグ流れの最適化 Competitive

夏井俊悟

Offer Organization: 鉄鋼環境基金

System: 環境研究助成

2017/11 - 2019/11
溶融塩電解のサブミリ秒スケール熱流動解析 Competitive

夏井俊悟

Offer Organization: 谷川熱技術振興基金

System: 研究助成

2018/10 - 2019/09
Development of visualization technology for raw material softening behavior in high temperature process aiming for sustainable low carbon ironmaking

Ohno Ko-ichiro

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

Category: Grant-in-Aid for Scientific Research (B)

Institution: Kyushu University

2015/04/01 - 2019/03/31

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In order to develop “visualization technology for raw material softening behavior in high temperature process aiming for sustainable low carbon ironmaking”, 3D dimensional information and slag melt physical properties of slag particle bed layer during softening at high temperature were given to particle method numerical simulation. As a result, basic numerical model to predict for gas and liquid flow in slag particle bed layer during softening at high temperature was established.
高炉炉下部を対象とした気液固粉の4相モデルの開発 Competitive

夏井俊悟

Offer Organization: JFEスチール

System: JFEスチール北海道大学包括連携プログラム

2018/07 - 2019/03
溶融塩電解により生成する微液滴形態と熱対流パターンの解明と制御 Competitive

夏井俊悟

Offer Organization: 天野工業技術研究所

System: 研究助成

2018/04 - 2019/03
DEM-SPHに基づく非球形粒子層を移動する分散液滴・固液共存場の動力学 Competitive

夏井俊悟

Offer Organization: 日本鉄鋼協会

System: 第26回鉄鋼研究振興助成

2017/04 - 2019/03
持続型低炭素製鉄を目指した高温プロセス内原料軟化融着挙動可視化技術の開発 Competitive

大野光一郎

Offer Organization: 文部科学省

System: 平成27年度科学研究費補助金基盤研究(B)

2015/04 - 2019/03
国際会議ICSTI2018への参加 Competitive

夏井俊悟

Offer Organization: 平成30年度資源・素材学会北海道支部

System: 若手研究者支援事業

2018/06 -
High-speed reduction method by bubbles induced emulsified metal droplets in molten salt bath

Natsui Shungo, SUZUKI Ryosuke, KIKUCHI Tatsuya, SUUDO Takuya, NASHIMOTO Ryota, TAKAI Hifumi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

Category: Grant-in-Aid for Young Scientists (B)

Institution: Hokkaido University

2015/04/01 - 2018/03/31

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In the thermic reduction of oxide XOx-1(s)(X = Ti, Zr, or difficult reducibility metals) using electrodeposited liquid metal (Me = Ca, Li, or their alloys), the presence of dissolved Me at the vicinity of the cathode is essential, when the oxide is placed close to the cathode. To understand the transient behavior of Me droplets in the molten salt bath, the interface between the electrodeposited phase and the bath system was observed in-situ using a high-speed digital microscope. Further, the transient behaviors of multi-fluid system were investigated using the SPH model. We found that the droplets on the electrode are slightly flattened, when the colloidal Me content decreases. This mechanism indicates that the heterogeneous distribution of the colloidal Me may be due to the local Me solubility in the electrolyte.
金属霧分散場によるTiO2の直接還元 Competitive

夏井俊悟

Offer Organization: 池谷科学技術振興財団

System: 単年度研究助成‐A

2017/04 - 2018/03
二融体界面に生成する微粒子と形態制御に関する研究 Competitive

夏井俊悟

Offer Organization: 東北大学多元物質科学研究所

System: 平成29年度物質・デバイス領域共同研究拠点課題

2017/04 - 2018/03
界面における張力不安定性を考慮した動力学モデルによる高温二融体の高速分離設計 Competitive

夏井俊悟

Offer Organization: 新井科学技術振興財団

System: 研究助成(一般)

2017/04 - 2018/03
SPH法に基づく界面不安定性解析による高温二融体の高速分離メカニズムの解明 Competitive

夏井俊悟

Offer Organization: 公益財団法人岩谷直治記念財団

System: 第43回(平成28年度)岩谷科学技術研究助成

2017/04 - 2018/03
高炉DEM-CFDシミュレーション Competitive

夏井俊悟

Offer Organization: (株)JFEスチール

System: JFEスチール北海道大学包括連携プログラム

2015/07 - 2018/03
二液相間に生成・分離するエマルジョンの高精度な移動現象解析モデルの開発 Competitive

夏井俊悟

Offer Organization: 一般社団法人資源・素材学会

System: 試験研究助成

2014/04 - 2017/07
反応界面積の極大化による超高速精錬プロセスの追求 Competitive

夏井俊悟

Offer Organization: 東北大学多元物質科学研究所

System: 平成28年度物質・デバイス領域共同研究拠点課題

2016/04 - 2017/03
溶融塩浴流動粒子カソードプロセスによるCO2からの機能性炭素材料の生成と形態制御 Competitive

夏井俊悟

Offer Organization: 公益財団法人国際科学技術財団

2016/04 - 2017/03
気泡ウエイク構造を利用した溶融塩浴活性金属液滴エマルジョン化による高速共還元法 Competitive

夏井俊悟

Offer Organization: 文部科学省

System: 科学研究費補助金(若手研究(B))

Category: 若手研究(B)

Institution: 北海道大学

2015 - 2017
Morphology control of complex oxide reduction in the molten salt

SUZUKI Ryosuke, O., KIKUCHI Tatsuya, NATSUI Shungo, SUZUKI Nobuyoshi, BABA Masahiko, WAKAMATSU Takafumi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

Category: Grant-in-Aid for Scientific Research (B)

Institution: Hokkaido University

2013/04/01 - 2016/03/31

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The complex oxide consisting of stable oxide MO and CaO with crystalline infhomonenity was reduced in the molten CaCl2 to form a specific appearance of metallic crystal. Because the amount of bar-like Nb was preferencially produced from CaxMyOz, the dendritic Nb is formed via the complex oxide, even when starting from Nb2O5. The morphology depends on the sequence of reduction. New production process of metallic Ti is proposed using TiS2: When TiS2 is reduced in CaCl2-CaS molten salt, oxygen contamination should be free. As well as CaO in OS process, CaS is electrochemically decomposed to Ca and it reacts with TiS2 to form metallic Ti. Resultantly it contained only 0.015mass%S. By calciothermic reduction in a canned CaCl2 molten salt without electrolysis, 0.26mass%S in Ti was achieved from TiS2. The residual oxygen in the both reactions were related with the particle surface.
大規模Euler-Lagrange型解法を用いた製鉄用高炉の最適設計によるCO2排出量大幅削減 Competitive

夏井俊悟

Offer Organization: 公益財団法人東電記念財団

System: 一般研究助成

2014/04 - 2016/03
低コークス比操業における高炉内融着帯を滴下する融体と気相流動メカニズムの解明 Competitive

夏井俊悟

Offer Organization: 日本鉄鋼協会

System: 第23回鉄鋼研究振興助成

2014/04 - 2016/03
低炭素素材製造プロセスを対象とした気液流動の粒子法シミュレーション Competitive

夏井俊悟

Offer Organization: マツダ財団

System: マツダ研究助成

2014/04 - 2016/03
非平衡流体力学に基づく熔融メタル・スラグ分散の張力不安定性解析による製錬高速化設計 Competitive

夏井俊悟

Offer Organization: 独立行政法人石油天然ガス・金属鉱物資源機構(JOGMEC)

System: 平成26年度金属資源の生産技術に関する基礎研究

2014/04 - 2016/03
高反応性原料の 3 次元ヘリカル構造による低炭素高炉の固気流れ安定化 Competitive

夏井俊悟

Offer Organization: 鉄鋼環境基金

System: 環境研究助成

2014/03 - 2016/03
CO2 decomposition by molten salt and ZrO2 anode Competitive

Ryosuke O. Suzuki

Offer Organization: Japan Science and Technology Agency (JST)

System: Advanced Low Carbon Technology Research and Development Program (ALCA)

2012/10 - 2015/03
粒子シミュレーションによる固気液三相の直接流れ解析モデルの開発 Competitive

夏井俊悟

Offer Organization: JFE21世紀財団

System: 大学研究助成(鉄鋼技術研究)

2014/01 - 2014/12
Thermoelectric generation by solar light concentration using water lens

SUZUKI Ryosuke, KINOSHITA Hiroshi, NATSUI Shungo, KOUMOTO Kunihito, FUNAHASHI Ryoji, ANNO Hiroaki, FUJISAKA Takeyuki, SUI Hongtao, NAKAGAWA Atsushi, ITO Keita, HAKOZAKI Hidetoshi, ISHI Toshio, MENG Xiangning, LERTSATITTHANAKORN Charanporan

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

Category: Grant-in-Aid for Challenging Exploratory Research

Institution: Hokkaido University

2012/04/01 - 2014/03/31

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This work proposes that water lens consists of only a transparent sheet and water, and that it concentrates the solar light and heat. Both calculation and experiments confirmed that a half-cylindrical lens could accumulate the light. Analytical equation describing the lens shape was given and solved numerically. The refraction and ray tracing were evaluated for the perpendicular and slant irradiations. It is predicted that there exists the optimal tension for an amount of filled water in the sheet, and that the maximum concentration ratio exceeds, for example, 75 if the width of sheet is fixed at 1m. The concentration effects for the slant ray were also estimated to simulate the sunrise and sunset. These results contribute to the system design of flexible lens corresponding to the solar dairy movement.
High-accuracy Simulation of Gas-Solid Flow in Blast Furnace by Combining Discrete Element Method and Computational Fluid Dynamics Competitive

Shungo Natsui

Offer Organization: Japan Society for the Promotion of Science (JSPS)

System: Research Fellowship for Young Scientists

2010/04 - 2013/03
離散要素法と連続体モデルの複合化による分布系反応システムの高精度解析

夏井俊悟

Offer Organization: 日本学術振興会

System: 科学研究費助成事業特別研究員奨励費

Category: 特別研究員奨励費

Institution: 東北大学

2010 - 2012

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製鉄プロセスは、環境負荷が大きいため、地球環境問題や地域との共生の必要性から大きな転換期にある。現在、操業効率化のために原料の新配置法や高反応性原料の使用が模索されているが、本研究では、莫大な労力とコストをかけられ経験的に決定されているプロセス操作設計を新たなコンピュータシミュレーション技術により根本的に見直すことに着眼した。高炉内では、充填層中で原料である焼結鉱が融解する固液共存領域の制御が、操業安定性に大きく影響するため、その挙動把握が重要であると考えた。個々の粒子から構成される充填層は、固気液相が混在しかつ空間的に不均一な運動形態をとり、従来の格子法では空間解像度の向上が困難であった。本研究では、高炉内の離散的現象の性格を反映した記述を行う手法として、粒子法であるDEMとMPS法、および数値流体力学法(CFD)をカップリングする方法を発展させた。粒子群単位の性質を構造格子に反映する方法を提案し、大規模な領域を計算対象とすることで従来にない大規模系を取り扱うことのできる3次元固気液流れ解析を行うことを可能とした。また、本モデルに粒子単位での熱移動、物質移動方程式を組み込むことで、高炉を対象としたモデル解析による数値実験を可能とした。特に、現在低炭素化を指向して、コークスの反応性の変化による鉱石の還元速度について議論がなされているが、本モデルは世界で初めて粒子配置の最適化を検討する数値モデルであり、伝熱、流体の流動、物質移動を考慮した最適化の提案を行った。

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Teaching Experience 10

数値材料プロセス学　東北大学大学院工学研究科
製錬・精製の速度論　東北大学大学院工学研究科
Graduate School Special Seminar　Tohoku University
コンピュータ演習　北海道大学
材料工学実験Ⅰ　北海道大学
創造工学　北海道大学
学外実習Ⅰ　北海道大学
科学英語演習　北海道大学
プレゼンテーション　北海道大学
材料工学実験Ⅱ　北海道大学

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Social Activities 5

Iron ~Yomoyama Banashi of Familiar Materials~

YouTube

2021/10/09 - Present
融体界面の流れの不思議な世界

2016/11/22 -
流れと界面の不思議～高温融体の世界から地球温暖化まで～

やさしい科学技術セミナー　岩手日報に掲載

2016/09/17 -
粒子法シミュレーションによる充填層内液相分散メカニズムの解明

第五回産学新日鐵住金シンポジウム

2015/03/23 -
Administrator of open LAB.

Hokkaido University Open Campus 2014

2014/08/04 -

Media Coverage 2

トーキン科学技術賞

河北新報

2021/04
JFEスチール・東北大学製鉄プロセスの高度解析技術に関する共同研究部門を設立

東北大学多元物質科学研究所　プレスリリース

2020/06

Type: Internet

Academic Activities 1

Metallurgical Materials Transactions B, Key Reader

2025/01/01 - Present

Activity type: Peer review

Other 1

北海道大学大学院工学研究院若手研究員等海外渡航助成

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Conference Of Metallurgists (COM 2015)出席の旅費支援(Canada, Toronto)