Organization
School of Materials and Chemical Technology Associate Professor
Title
Associate Professor
External link
UEDA MITSUTOSHI
Degree
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Dr. (Eng.) ( 2004.3 Tokyo Institute of Technology )
Research Interests
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Physical Chemistry at High Temperatures
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High Temperature Oxidation of Metallic Materials
Research Areas
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Nanotechnology/Materials / Material processing and microstructure control / 高温酸化・高温腐食
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Nanotechnology/Materials / Structural materials and functional materials / 耐熱金属材料
Education
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Tokyo Institute of Technology Graduate School of Science and Engineering
1999.4 - 2004.3
Country： Japan
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Tokyo Institute of Technology School of Engineering
1996.4 - 1999.3
Country： Japan
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Tokyo Institute of Technology
1995.4 - 1996.3
Country： Japan
Research History
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Institute of Science Tokyo Associate Professor
2024.10
Country：Japan
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Hokkaido University Faculty of Engineering Associate Professor
2024.4
Country：Japan
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Tokyo Institute of Technology School of Materials and Chemical Technology Associate Professor
2016.4 - 2024.9
Country：Japan
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Tokyo Institute of Technology Graduate School of Science and Engineering Associate Professor
2013.7 - 2016.3
Country：Japan
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Tokyo Institute of Technology Graduate School of Science and Engineering Assistant Professor
2007.4 - 2013.6
Country：Japan
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Tokyo Institute of Technology Graduate School of Science and Engineering Assistant Professor
2004.4 - 2007.3
Country：Japan
Professional Memberships
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The Electrochemical Society of Japan
2006.3
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The Iron and Steel Institute of Japan
2006
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The Japan Institute of Metals and Materials
1999.7
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The Solid State Ionics Society of Japan
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The Technical Association of Refractories, Japan
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（公社）腐食防食学会
Committee Memberships
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（公社）日本金属学会 調査研究委員会委員（第５分野）
2025.4
Committee type：Academic society
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（公社）日本金属学会 講演大会委員（第５分野）
2025.4
Committee type：Academic society
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ステンレス協会 ISO/TC156/nWG13委員会 副主査
2023.4
Committee type：Other
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（独）日本学術振興会 産学協力委員会 R054 カーボンニュートラル実現のための耐熱材料委員会 委員
2023.4 - 2025.3
Committee type：Academic society
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ステンレス協会 ISO/TC156/nWG13 委員
2020.4 - 2023.3
Committee type：Other
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（独）日本学術振興会 耐熱金属材料第123委員会 耐環境特性分科会 委員
2014.4 - 2023.3
Committee type：Academic society
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（公社）腐食防食学会 会誌「材料と環境」編集委員会 委員
2014.3 - 2016.3
Committee type：Academic society
Papers
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Kaito Ogawahara, Mitsutoshi Ueda
MATERIALS TRANSACTIONS 65 ( 9 ) 1131 - 1140 2024.9
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Abdul Latif, Mitsutoshi Ueda, Masao Takeyama
High Temperature Corrosion of Materials 2024.8
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Effect of Alloying Elements on Steam Oxidation Behavior of Heat Resistant Steels Reviewed
Mitsutoshi Ueda
Materia Japan 63 ( 3 ) 154 - 158 2024.3
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Potential Utilization of Iron Oxidation Reaction Heat for the Generation of SiO2–FeO System Melts Reviewed
Rie Endo, Kimia Mitsui, Shota Hashiyama, Leo Miyazaki, Takashi Watanabe, Mitsutoshi Ueda, Miyuki Hayashi, Hiroshi Tanei, Masahiro Susa
International Journal of Thermophysics 45 ( 3 ) 1 - 19 2024.2
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The Effect of Rhodium Addition on Degradation Behavior of Ir-10 mass%Rh Alloy during Oxidation at Elevated Temperatures Reviewed
上田光敏, 寺井健太, 横田俊介, 竹谷俊亮, 安原颯人, 今井庸介
日本金属学会誌 87 ( 10 ) 279 - 287 2023.10
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Effects of oxygen addition on the microstructure, phase transformations, and oxidation resistance of TiAl alloys Reviewed
Ali Shaaban, Hirotoyo Nakashima, Mitsutoshi Ueda, Masao Takeyama
Journal of Alloys and Compounds 918 165716 - 165716 2022.10
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The Effect of Tungsten Addition on Steam Oxidation Behavior of the Fe-20Cr-35Ni (at%) Alloy at 1073 K Reviewed
小川原魁人, 上田光敏
日本金属学会誌 86 ( 7 ) 121 - 130 2022.7
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The Effect of Tungsten Addition to Fe-9Cr Alloy on Steam Oxidation Behavior at 923 K Reviewed
Lidyana Utami, Mitsutoshi Ueda
Oxidation of Metals 97 ( 3-4 ) 341 - 358 2022.1
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Mu Li, Megumi Akoshima, Rie Endo, Mitsutoshi Ueda, Hiroshi Tanei, Masahiro Susa
ISIJ International 62 ( 1 ) 275 - 277 2022.1
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Mitsutoshi Ueda, Jumpei Ohbayashi, Tatsumi Yao, Masao Takeyama
Oxidation of Metals 96 ( 1-2 ) 81 - 91 2021.7
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Lidyana Utami, Mitsutoshi Ueda
Advances in Materials Technology for Power Plants 327 - 335 2019.10
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Yuanru Yang, Hiromichi Watanabe, Mitsutoshi Ueda, Miyuki Hayashi, Masahiro Susa, Rie Endo
ISIJ International 58 ( 12 ) 2186 - 2190 2018.12
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鉄と鋼 104 ( 2 ) 72 - 80 2018
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Effect of grain size on the oxidation of Fe–13Cr–5Ni alloy at 973K in Ar–21vol%O2 Reviewed
Lu Liu, Zhi-gang Yang, Chi Zhang, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
Corrosion Science 91 195 - 202 2015.2
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STEAM OXIDATION RESISTANCE OF THE MODIFIED FE-20CR-35NI-2.5NB (at.%) STEEL AT 1073 K Reviewed
M. Ueda, K. Chikama, M. Takeyama
Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015) 39 - 41 2015
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IN-SITU OBSERVATION OF THE FRACTURE BEHAVIOR OF THE OXIDE SCALE ON THE Fe-20Cr-35Ni-2.5Nb-0.03B-0.1Zr STEEL DURING TENSILE DEFORMATION Reviewed
Proceedings of The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015) 173 - 176 2015
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Takuya Ito, Kenjiro Fujita, Yoshio Matsuzaki, Mitsutoshi Ueda, Toshio Maruyama
Advances in Solid Oxide Fuel Cells X: Ceramic Engineering and Science Proceedings 35 ( 3 ) 33 - 40 2014.12
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Thermal Diffusivity Measurement of Oxide Scale Formed on Steel during Hot-rolling Process Reviewed
Rie Endo, Takashi Yagi, Mitsutoshi Ueda, Masahiro Susa
ISIJ International 54 ( 9 ) 2084 - 2088 2014.9
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Yu Misosaku, Imanuel Tarigan, Takahiro Kimura, Naoki Takata, Mitsutoshi Ueda, Toshio Maruyama, Masao Takeyama
Tetsu-to-Hagane 100 ( 9 ) 1158 - 1164 2014
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Creep of the novel austenitic heat resistant steel of Fe-20Cr-30Ni-2Nb under steam atmosphere at 1073 K
Yu Misosaku, Imanuel Tarigan, Naoki Takata, Mitsutoshi Ueda, Toshio Maruyama, Masao Takeyama
Advances in Materials Technology for Fossil Power Plants - Proceedings from the 7th International Conference 1352 - 1362 2014
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Lyta, Mitsutoshi Ueda, Kenichi Kawamura, Masao Takeyama, Toshio Maruyama
MATERIALS TRANSACTIONS 54 ( 12 ) 2276 - 2284 2013.12
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Steam Oxidation of the Novel Austenitic Steel of Fe-20Cr-30Ni-2Nb (at.%) at 973 K
Mitsutoshi Ueda, Masakazu Yamashita, Kenichi Kawamura, Masao Takeyama, Toshio Maruyama
Advances in Materials Technology for Power Plants 815 - 820 2013.10
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Tedi Kurniawan, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
MATERIALS TRANSACTIONS 54 ( 9 ) 1829 - 1837 2013.9
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Mitsutoshi Ueda, Yuki Inoue, Hikotaro Ochiai, Masao Takeyama, Toshio Maruyama
Oxidation of Metals 79 ( 5-6 ) 485 - 494 2012.12
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Effect of water vapour on the oxidation of Fe–13Cr–5Ni martensitic alloy at 973K Reviewed
L. Liu, Z.-G. Yang, C. Zhang, M. Ueda, K. Kawamura, T. Maruyama
Corrosion Science 60 90 - 97 2012.7
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Mitsutoshi Ueda, Toshio Maruyama
Journal of the Korean Ceramic Society 49 ( 1 ) 37 - 42 2012.1
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Effect of Electric Current on Growth of Oxide Scale on Fe–25Cr Alloy for SOFC Interconnect at 1073 K Reviewed
K. Kawamura, T. Nitobe, H. Kurokawa, M. Ueda, T. Maruyama
Journal of The Electrochemical Society 159 ( 3 ) B259 - B264 2012.1
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Solubility of Fe in Al Rich Region of Al^|^ndash;Mg^|^ndash;Si System at 973 K Reviewed
Yuichi Kamo, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
ISIJ International 52 ( 11 ) 2083 - 2092 2012
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Void Formation at the Interface of the Duplex Scale Formed on Fe-5Cr Alloy at 773 K Reviewed
Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
Materials Science Forum 696 34 - 38 2011.9
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1473K，Ar–17.6%H2–12.2%H2O雰囲気におけるFe–1 mass%Si合金の高温酸化で生成する内部酸化物の定量化 Reviewed
黄 維彬, 上田 光敏, 河村 憲一, 丸山 俊夫
鉄と鋼 97 ( 9 ) 473 - 479 2011.9
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Minoru Tanaka, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
ISIJ International 51 ( 4 ) 638 - 644 2011
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Direct Heating for Analysing Reforming Reaction on Alloy Surface in Low S/C Environment Reviewed
Mitsutoshi Ueda, Kenjiro Fujita, Yoshio Matsuzaki, Toshio Maruyama
ECS Transactions 25 ( 25 ) 89 - 99 2010.2
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Asep Ridwan Setiawan, Mohd Hanafi Bin Ani, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
ISIJ International 50 ( 2 ) 259 - 263 2010.2
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Toshio Maruyama, Mitsutoshi Ueda
Journal of the Korean Ceramic Society 47 ( 1 ) 8 - 18 2010.1
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The Effect of Water Vapor on High Temperature Oxidation of Fe-Cr Alloys at 1073 K Reviewed
Mohd Hanafi Bin Ani, Toshiya Kodama, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
MATERIALS TRANSACTIONS 50 ( 11 ) 2656 - 2663 2009.11
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Toshio Maruyama, Mitsutoshi Ueda, Kenichi Kawamura
Defect and Diffusion Forum 289-292 1 - 13 2009.4
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Void Formation in Growing Oxide Scales with Schottky Defects and P-Type Conduction Reviewed
Toshio Maruyama, Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura
Materials Science Forum 595-598 1039 - 1046 2008.9
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Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
MATERIALS TRANSACTIONS 49 ( 3 ) 629 - 636 2008.3
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Quantitative Prediction of Voids Formation in a Growing Cobaltous Oxide Scale at 1373 K Reviewed
Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
MATERIALS TRANSACTIONS 48 ( 11 ) 2997 - 3006 2007.11
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Quantitative Prediction of Voids Formation in a Growing Nickel Oxide Scale at 1373 K Reviewed
Kojiro Akiba, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
MATERIALS TRANSACTIONS 48 ( 10 ) 2753 - 2761 2007.10
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Carburization Resistance of Nb Added-16Cr Alloy at 1073 K Reviewed
Takuya Ito, Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
ECS Transactions 7 ( 1 ) 2371 - 2377 2007.5
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Quantitative prediction of void formation in growing magnetite scale formed on iron at 823 K
M. Ueda, T. Maruyama
Conference proceeding of Materials Science & Technology 2007 Conference and Exhibition (MS&T'07), International Symposium on Defects, Transport and Related Phenomena, Transport III 277 - 287 2007
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Mitsutoshi Ueda, Kenichi Kawamura, Toshio Maruyama
Materials Science Forum 522-523 37 - 44 2006.8
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Oxygen potential distribution during disappearance of the internal oxidation zone formed in the steam oxidation of Fe–9Cr–0.26Si ferritic steel at 973 K Reviewed
Mitsutoshi Ueda, Yukiko Oyama, Kenichi Kawamura, Toshio Maruyama
Materials at High Temperatures 22 ( 1-2 ) 79 - 85 2005.1
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High Temperature Steam Oxidation of High Cr Ferritic Steels Reviewed
上田光敏, 丸山俊夫
材料と環境 54 ( 5 ) 2005
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Toshio Maruyama, Naoya Fukagai, Mitsutoshi Ueda, Kenichi Kawamura
Materials Science Forum 461-464 807 - 814 2004.8
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Hydrogen permeation measurement of iron and its oxide membranes by using a dew point hygrometer Reviewed
M. Ueda, H. Kurokawa, K. Kawamura, T. Maruyama
The Electrochemical Society Proceedings (High Temperature Corrosion and Materials Chemistry Ⅴ) PV 2004-16 127 - 138 2004
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Mitsutoshi Ueda, Makoto Nanko, Kenichi Kawamura, Toshio Maruyama
Materials at High Temperatures 20 ( 2 ) 109 - 114 2003.1
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Microstructure Evolution of Internal Oxidation Zone Formed in the Initial Stage of the Steam Oxidation of Fe-9Cr-0.26Si Ferritic Steel at 973 K Reviewed
M. Ueda, M. Nanko, Y. Oyama, K. Kawamura, Toshio Maruyama
The Electrochemical Society Proceedings (High Temperature Corrosion and Materials Chemistry Ⅳ) PV 2003-16 117 - 127 2003
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Microstructure development of scales formed in the early stage of steam oxidation of Fe-Cr ferritic alloys at elevated temperatures Reviewed
M. Ueda, M. Nanko, K. Kawamura, T. Maruyama
Materials at High Temperatures 18 ( S ) 37 - 41 2001
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Monitoring of steam oxidation behavior of Fe-Cr ferritic steels using ZrO2 oxygen sensor Reviewed
M. Ueda, M. Nanko, T. Maruyama
The Electrochemical Society Proceedings (High Temperature Corrosion and Materials Chemistry: Per Kofstad Memorial Symposium) PV 99-38 115 - 126 2000
MISC
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特集 よくわかる熱処理技術―熱処理の基礎と応用，そして最近のトピックス 金属の高温酸化から見た熱処理技術
上田光敏
金属 93 ( 6 ) 489 - 494 2023
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Fe-20Cr-35Ni-2.5Nb (at.%)鋼の高温水蒸気酸化挙動に及ぼすWおよびTiの影響
上田 光敏, 大林 純平, 矢尾 達海, 竹山 雅夫
日本学術振興会 耐熱金属材料第123委員会研究報告 62 ( 2 ) 185 - 190 2021
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Solid-State Reaction of Inorganic Materials
M. Ueda
Journal of the Technical Association of Refractories, Japan (TAIKABUTSU OVERSEAS) 39 ( 4 ) 207 - 209 2019
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1073 KにおけるFe-Cr-Ni-Nb合金の水蒸気酸化挙動に及ぼすW添加の影響
上田 光敏, 大林 純平, 竹山 雅夫
日本学術振興会 耐熱金属材料第123委員会研究報告 59 ( 2 ) 331 - 336 2018
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無機材料の固体間反応
上田光敏
耐火物 69 ( 9 ) 399 - 401 2017
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1073 KにおけるFe-Cr-Ni-Nb合金の水蒸気酸化挙動に及ぼす母材組織の影響
上田 光敏, 勝目 翔太, 竹山 雅夫
日本学術振興会 耐熱金属材料第123委員会研究報告 57 ( 3 ) 302 - 307 2016
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金属の高温酸化
上田光敏
防錆管理 59 ( 2 ) 47 - 52 2015
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水蒸気酸化－金属の高温酸化におよぼす水蒸気の影響
上田光敏
金属 81 ( 7 ) 557 - 562 2011
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２５回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その１ 格子欠陥はなぜできるのか？（内因的欠陥）
丸山 俊夫, 上田 光敏
耐火物 61 ( 1 ) 50 - 53 2009
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２６回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その２ 格子欠陥濃度の酸素ポテンシャル依存性（ショットキー欠陥）
丸山 俊夫, 上田 光敏
耐火物 61 ( 2 ) 105 - 108 2009
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２７回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その３ 格子欠陥濃度の酸素ポテンシャル依存性（フレンケル欠陥）
丸山 俊夫, 上田 光敏
耐火物 61 ( 4 ) 198 - 202 2009
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２８回「金属酸化物の格子欠陥の化学－Brouwer図の作成法－」その４ 異原子価イオンを添加した場合の格子欠陥濃度
丸山 俊夫, 上田 光敏
耐火物 61 ( 5 ) 253 - 256 2009
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第３１回「金属酸化物の溶融塩への溶解度と溶融塩腐食」
丸山 俊夫, 上田 光敏
耐火物 61 ( 8 ) 426 - 429 2009
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１０回「金属－酸素－塩素系の相安定図と蒸気圧」その２ ―金属－酸素－塩素系における金属塩化物の蒸気圧―
丸山 俊夫, 上田 光敏
耐火物 59 ( 4 ) 205 - 209 2007
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１１回「金属－酸素－塩素系の相安定図と蒸気圧」その３ ―クロム－酸素－塩素系における相安定図とクロム含有蒸気種の蒸気圧―
上田 光敏, 丸山 俊夫
耐火物 59 ( 5 ) 261 - 266 2007
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１２回「金属－酸素－塩素系の相安定図と蒸気圧」その４ ―代表的な耐火物における相安定図と蒸気種の蒸気圧―
上田 光敏, 丸山 俊夫
耐火物 59 ( 6 ) 317 - 323 2007
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第９回「金属－酸素－塩素系の相安定図と蒸気圧」その１ ―金属－酸素－塩素系の凝縮相の相安定図―
丸山 俊夫, 上田 光敏
耐火物 59 ( 2 ) 105 - 109 2007
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第１回「エリンガム図」(Ellingham diagram) その１ ―金属／金属酸化物系の平衡酸素分圧－
丸山 俊夫, 上田 光敏
耐火物 58 ( 4 ) 218 - 222 2006
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第２回「エリンガム図」(Ellingham diagram) その２ ―H2/H2O, CO/CO2系の平衡酸素分圧－
丸山 俊夫, 上田 光敏
耐火物 58 ( 5 ) 269 - 274 2006
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耐火物技術者のための便利なダイヤグラム－描き方と上手な利用法 第３回「エリンガム図」(Ellingham diagram) その３ ―複合酸化物，合金系の活量と平衡酸素分圧－
丸山 俊夫, 上田 光敏
耐火物 58 ( 6 ) 325 - 329 2006
Presentations
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923 K，CO2環境下におけるFe-9mass%Cr合金の初期酸化挙動
濵田 駿佑, 上田 光敏, 米田 鈴枝, 林 重成
日本金属学会2025年秋期（第177回）講演大会 2025.9
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1073 KにおけるFe-Cr合金の内部酸化挙動に及ぼす水素分圧の影響
乗松 駿介, 上田 光敏
日本金属学会2025年秋期（第177回）講演大会 2025.9
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高温水素透過環境下におけるFe-9mass%Cr合金の酸化挙動
沖田 怜, 上田 光敏, 米田 鈴枝, 林 重成
日本金属学会2025年秋期（第177回）講演大会 2025.9
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Fe-1mass%Si-2mass%Mn合金上に生成した酸化皮膜の1123Kにおける還元挙動（題目訂正）
田垣 好偲, 上田 光敏, 河村 憲一
（一社）日本鉄鋼協会 2025年秋季（第190回）講演大会 併催シンポジウム「溶融めっき皮膜の高機能化に向けた各種構造因子の明確化」 2025.9
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The effect of Ti addition on formation and growth of oxide scale on Fe-Cr-Al alloys
2025.9
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Na2SO4を堆積したβ-NiAl合金におけるノジュール形成への温度の影響
岩崎 大誠, 林 重成, 上田 光敏, 米田 鈴枝, 水篠 孝太郎, 松永 康夫, 都留 敦
日本金属学会2025年秋期（第177回）講演大会 2025.9
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酸素水素燃焼タービン発電システムに資する新規Ni基耐熱合金の耐水蒸気酸化特性 Invited
上田光敏
2024年北海道夏期セミナー 主題「脱炭素・循環型社会の構築に向けた耐熱材料の高温腐食防食」 2024.8 （一社）表面技術協会北海道支部，（公社）腐食防食学会北海道支部
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Steam Oxidation Behavior of Chromia-Forming Alloys: Effects of Microstructure and Alloying Elements Invited
Mitsutoshi Ueda
International Symposium on High-Temperature Oxidation and Corrosion 2022 (ISHOC-2022) 2022.10
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The Effect of Microstructure on Steam Oxidation Behavior of the Fe-20Cr-35Ni-2.5Nb (at.%) Steel at 1073 K Invited
M. Ueda, J. Ohbayashi, T. Yao, M. Takeyama
10th International Symposium on High-Temperature Corrosion and Protection of Materials (HTCPM’10) 2021.3
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High Temperature Steam Oxidation of Novel Austenitic Steels for Advanced USC Power Plants Invited International conference
M. Ueda
The International Conference on Engineering Innovation 2016 2016.6
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Steam Oxidation Resistance of the Modified Fe-20Cr-35Ni-2.5Nb (at.%) Steel at 1073 K Invited International conference
M. Ueda, K. Chikama, M. Takeyama
The 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015) 2015.6
Industrial property rights
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金属酸化物薄膜還元検知センサ
上田光敏, 林 優作, 河村 憲一, 入澤 恵理子, 小松 篤史, 大久保 成彰, 山口 周
Awards
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学術記念賞（西山記念賞）
2023.3 （一社）日本鉄鋼協会 鉄鋼材料の高温酸化に関する研究
上田光敏
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進歩賞
2014.5 （公社）腐食防食学会 構成イオンの流れの発散による酸化皮膜中のボイド生成の定量的予測に関する研究
上田光敏
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田川記念固体化学奨励賞
2010.3 （社）電気化学会 固体化学の新しい指針を探る研究会 金属酸化物中の動力学的組織変化の定量的予測と金属の高温酸化への応用
上田光敏
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東工大工系若手奨励賞
2008.9 東京工業大学
上田光敏
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手島記念研究賞 博士論文賞
2005.2 手島工業教育資金団
上田光敏
Research Projects
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高温その場観察による耐熱金属材料の水蒸気酸化挙動に及ぼす水素の影響の明確化
Grant number：23K04446 2023.4 - 2026.3
日本学術振興会 科学研究費助成事業 基盤研究(C)
上田 光敏
Authorship：Principal investigator
Grant amount：\4810000 （ Direct Cost: \3700000 、 Indirect Cost：\1110000 ）
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Novel utilization method of strengthening phases for improving steam oxidation behavior of heat-resistant steels
Grant number：19K05055 2019.4 - 2023.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Ueda Mitsutoshi
Authorship：Principal investigator
Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）
This study focuses on the effects of alloying elements and strengthening phases on steam oxidation behavior of heat resistant steels at elevated temperatures. Niobium and tungsten were selected as alloying elements and steam oxidation tests were conducted by using model Fe-Cr and Fe-Cr-Ni alloys with the alloying elements. There are two effects of alloying elements on steam oxidation behavior: the effect of solid solution and the effect of precipitation. As a results of two effects, alloying elements of niobium and tungsten contribute to improve steam oxidation resistance of the alloys.
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Design principle of optimal surface texture for improving steam oxidation behavior of heat-resisting materials
Grant number：26870186 2014.4 - 2018.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
UEDA MITSUTOSHI
Authorship：Principal investigator
Grant amount：\3770000 （ Direct Cost: \2900000 、 Indirect Cost：\870000 ）
This research focuses on effect of crystallographic orientation of the substrate on microstructure development of the oxide scale formed on heat resistant steels during steam oxidation. Fe-Cr-Ni alloys was used as a model system of austenitic steels for the various oxidation tests. Before steam oxidation, crystallographic orientation of the substrate was determined by electron backscatter diffraction. After steam oxidation, microstructure of the oxide scale formed on each crystal grain of the substrate was observed and categolozed based on crystallographic orientation. As a result, crystal grain of Fe-Cr-Ni alloys, which has (111) plane on the surface, has good oxidation resistance due to the formation of protective oxide scale.
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Development of Si-free Sealing Technique for Solid Oxide Fuel Cells withLong-term Durability at High-temperatures
Grant number：22360284 2010 - 2012
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
AKASHI Takaya, NANKO Makoto, HAYASHI Shigenari, KIYONO Hajime, UEDA Mitsutoshi
Authorship：Coinvestigator(s)
Grant amount：\19110000 （ Direct Cost: \14700000 、 Indirect Cost：\4410000 ）
Silicon-free gas sealing technique was developed, employing liquid-phase-oxidation (LPO) joining of yttria-stabilized zirconia (YSZ) and stainless alloy via ZrO2-dispersed Al interlayer. During the LPO-joining, the ZrO2/Al2O3 composite interlayer was formed between YSZ and Fe-Cr alloy. The composite interlayer had an excellent oxygen gas seal property, and high durability under thermal cycles. Furthermore, it was also confirmed that the composite interlayer formed via NiO-dispersed Al interlayer had high durability under thermal cycles.
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Control of kinetic microstructure change in the gas separation membrane of metal complex oxide and extension of lifetime
Grant number：19760518 2007 - 2009
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
UEDA Mitsutoshi
Authorship：Principal investigator
Grant amount：\3670000 （ Direct Cost: \3100000 、 Indirect Cost：\570000 ）
Kinetic microstructure change in the membrane of SrCo_<0.8>Fe_<0.2>O_<3-δ> under the oxygen chemical potential gradient at 1173 K was experimentally observed in this study. From the experimental results, it was found that microstructure of the membrane drastically changed by the oxygen permeation through the membrane. Although this study also tried to estimate the microstructure change by calculating the divergence of the ionic flux through the membrane, it was difficult to obtain the calculated results.
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Thermodynamic and Kinetic Stability of Nano-Structure in Ionic Materials and Its Control
Grant number：16079206 2004 - 2008
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Priority Areas
MARUYAMA Toshio, NAKAMURA Yoshio, KAWAMURA Kenichi, UEDA Mitsutoshi, MANFRED Martin
Grant amount：\49800000 （ Direct Cost: \49800000 ）
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Control of non-equilibrium microstructure and function of oxide scales formed in high temperature oxidation of metalic materials for high efficiency energy comversion
Grant number：16360361 2004 - 2006
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
MARUYAMA Toshio, KAWAMURA Kenichi, UEDA Mitsutoshi
Grant amount：\14100000 （ Direct Cost: \14100000 ）
(1)Quantitative prediction of void formation in a growing scales in high temperature oxidation
Equations have been proposed for evaluation of chemical potential distribution, ionic fluxes and its divergence in a growing oxide scales. The divergence was proved to be the good measure for evaluating the void formation. The validity was experimentally confirmed in magnetite scales formed in high temperature oxidation of iron.
(2)High temperature oxidation of ferritiv Fe-Cr alloys for interconnects in solid oxide fuel cell (SOFC) and electrical conductivity of the oxide scale.
Simulating the operation condition of SOFC, high temperature oxidation of Fe-16Cr alloys was conducted in the dual atmosphere, in which specimens were exposed air for the cathode and the mixture of H2O (97%) and H2 (3%) at 1073 K. The continuous protective Cr2O3 scales were formed on both sides. The growth rates were quite similar, indicating the major defect was interstitial ion of Cr in two cases.
The estimation of the oxygen potential distribution clarified that the oxygen potential is low almost the whole region in scales. This fact predicted the reason why the electrical conductivity of the Cr2O3 scales were high. Applied external currents retarded the growth rate of Cr203 on the cathode and enhanced it on the anode. The equations were proposed for evaluating the scale growth rate under the external current and the equations predicted the growth rate in the long term exposures.
(3)Control of microstructure development and design of the function of the scales.
The summary of this project is the following
(1)The quantitative prediction of microstructure development is possible with diffusion coefficients of constituent ions as a function of oxygen potential.
(2)For controlling microstructure, it is dispensable to design the diffusivity. The appropriate doping is an possibility for the design of the microstructure.
(3)The evaluation of chemical potential distribution and divergences of ionic fluxes is very powerful for controlling microstructures and designing the function of scales. -
熱力学的に平衡する金属酸化物を用いた永久寿命高温トランジスタ
Grant number：15656172 2003 - 2004
日本学術振興会 科学研究費助成事業 萌芽研究
丸山 俊夫, 河村 憲一, 上田 光敏, 尾山 由紀子
Grant amount：\3300000 （ Direct Cost: \3300000 ）
本研究ではNiO-ZnO系で熱力学的に平衡する酸化物を取り上げ高温トランジスタの開発の可能性を調べることを目的としている。平成16年度はp型であるNiO(ZnO)固溶体とn型であるZnO(NiO)固溶体とに,同時にドナーとアクセプターをドーピングして,熱力学的平衡における固溶量の違いにより,高性能な素子が得られる可能性について調べた。
アクセプターとしてLi_2OおよびNa_2O,ドナーとしてAl_2O_3およびGa_2O_3を取り上げ,両者の組み合わせをすべて調べた。その結果,Na_2OとAl_2O_3を1mol%づつ同時にドープすると,NiO(ZnO)固溶体のp型特性およびZnO(NiO)固溶体のn型特性が同時に改善されることを見出した。
両者によるp-n接合の特性は773Kでは1ヶ月間の実験でも変化が見られず,長寿命が期待できることを明らかにした。
本年度は,薄膜化によるp-n-pやn-p-n型のトランジスタの作製までには至らなかったが,今後,パルスレーザーデポジションによる薄膜化を計画しており,その特性を調べるとともに無限寿命高温トランジスタとしての可能性を継続的に研究する。
Teaching Experience
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Introduction to Informatics I
2025.4 Institution：Hokkaido University
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High-Temperature Corrosion and Protection of Materials
2024.4 Institution：Hokkaido University
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Extractive Metallurgy
2024.4 Institution：Hokkaido University
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Physical Chemistry for High Temperature Processes -Oxidation of Metals-
2016.4 Institution：Institute of Science Tokyo