Year 2025 Spring Annual Meeting of JIMM
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Session Details

公募シンポジウム講演

[S1]S1 Architecture construction for functions and properties of materials VI-New frontier of multiscale structure control for materials design-

Sun. Mar 9, 2025 1:00 PM - 5:10 PM JST
Sun. Mar 9, 2025 4:00 AM - 8:10 AM UTC
Room C(110 1st floor Building No.11)
Chair:連川 貞弘(熊本大学)、吉見 享祐(東北大学)、中村 篤智(大阪大学)
※表示の講演時間には質疑応答時間も含みます。
（質疑応答時間5分、基調講演と招待講演は5～10分）

材料機能特性のアーキテクチャー研究会が春期講演大会に合わせて企画する公募シンポジウムの第VI弾である。結晶構造や格子欠陥から相界面を含む組織まで，マルチスケールにわたる材料の構造全体をアーキテクチャーとして捉えている。とくに格子欠陥と相界面は機能特性の発現原理と密接に関連し，これらの制御によって材料の機能と特性を最適化できることから，これまで企画した公募シンポジウムでは，構造用材料と機能性材料の分類や金属とセラミックスなど材料の枠組みを問わず，専門分野の垣根を越えて広く議論を展開してきた。研究会終了の総括とする今回，これまで同様に多種多様な材料を対象として，機能特性制御の最も重要な組織因子である格子欠陥と相界面に関する多彩な現象の類似と相違に着目し，アナロジーで体系化する切り口で多角的に議論することで，異なる専門分野にも共通する基礎学理の再認識と理解を深める機会とする。
1:00 PM - 1:20 PM JST(4:00 AM - 4:20 AM UTC)

[S1.5]Development of a Fracture Toughness Prediction Model for MoSiBTiC Alloys Using Microstructural Images

*Chihana KUDO1, Masahiko DEMURA2, Kenji NAGATA2, Akihiro ENDO2, Kyosuke YOSHIMI3 (1. Tohoku University, 2. National Institute for Materials Science, 3. Tohoku University)
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1:20 PM - 1:40 PM JST(4:20 AM - 4:40 AM UTC)

[S1.6]Quantitative Morphological Analysis of Fracture Surfaces in Mo-Ti-C Alloys Using Machine Learning

*Xinyu Yan1, Sheng Xu1,2, Takahiro Kaneko1, Toshihiro Omori1, Kyosuke Yoshimi1 (1. Graduate School of Engineering, Tohoku Univ., 2. FRIS, Tohoku Univ.)
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1:40 PM - 1:55 PM JST(4:40 AM - 4:55 AM UTC)

[S1.7]Effect of Nb Doping on Room-Temperature Plastic Deformation Behavior of SrTiO3 Single Crystals

*Kohei TAKAHARA1, Rikuta HARA1, Takeshi SHIBAMOTO1, Yan LI2, Keitaro HORIKAWA2, Atsutomo NAKAMURA2 (1. Osaka Univ., 2. Osaka Univ.)
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1:55 PM - 2:05 PM JST(4:55 AM - 5:05 AM UTC)

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2:05 PM - 2:45 PM JST(5:05 AM - 5:45 AM UTC)

[S1.8][Keynote Lecture] Application of Layered Manganese Dioxide with Reversible Water Molecule Intercalation/Deintercalation to Thermal Energy Storage and the Lattice Defect Dependency of Its Thermal Storage Properties

*Norihiko OKAMOTO1, Tetsu ICHITSUBO1 (1. IMR, Tohoku Univ.)
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2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[S1.9]Electrical and thermal conductivity at Low-angle tilt grain boundary using rutile TiO2 Bicrystals

*Soma HIRAOKA1, Shuhei Koga1, Yan Li2, Masao Matsuda2, Atsutomo Nakamura2 (1. Osaka Univ., 2. Osaka Univ.)
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3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[S1.10]Effect of oxide phase formed during heat treatment on thermoelectric properties of β-FeSi₂

*Weiqingyu WANG1, Yoshisato Kimura1 (1. 東科大)
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3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[S1.11]Half-Heusler NbCoSn Thermoelectric material design based on solidified microstructure and Fe addition

*Ryoya Takagi1, Tomonori Tanaka1, Yoshihiro Gohda1, Yoshisato Kimura1 (1. Inst.of Science)
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3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[S1.12]Realization of Enhanced Electrical Properties and Reduced Thermal Conductivity in Mg2(Si, Sn)1-xBix Thermoelectric Materials with Compositional Gradient Layered Microstructure

*Feifan Zhang1, Yoshisato Kimura1 (1. Inst. of Science Tokyo)
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3:45 PM - 3:55 PM JST(6:45 AM - 6:55 AM UTC)

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3:55 PM - 4:35 PM JST(6:55 AM - 7:35 AM UTC)

[S1.13][Keynote Lecture] Quantitative characterization and prediction of solute segregation at α-Fe grain boundary

*Gorou MIYAMOTO1, Bohao Zheng1, Yongjie Zhang1, Masanori Enoki2, Masato Wakeda3, Tadashi Furuhara1 (1. Tohoku University, 2. Shimane University, 3. NIMS)
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4:35 PM - 4:55 PM JST(7:35 AM - 7:55 AM UTC)

[S1.14]Microstructural changes in TiZrTaNbMo HEA due to annealing

*Haruka KATAYAMA1, Andrea Školáková2, Pavel Lejček2, Sadahiro Tsurekawa3 (1. Kumamoto University, Graduate School of Science and Technology, 2. Institute of Physics of the Czech Academy of Sciences, 3. Kumamoto University, Faculty of Advanced Science and Technology)
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4:55 PM - 5:10 PM JST(7:55 AM - 8:10 AM UTC)

[S1.15]Formation behavior of C14 Laves phase at the interface of Fe/Nb and Fe/Ta diffusion couples

*Ryo TSURUOKA1, Lee Dosung1, Kimura Yoshisato1 (1. Inst. of Science Tokyo)
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