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Clarification of multiscale sintering process by using synchrotron X-ray nano-CT

Research Project

Project/Area Number 19K15289
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26020:Inorganic materials and properties-related
Research InstitutionNational Institute for Materials Science (2020-2022)
Tokyo Institute of Technology (2019)

Principal Investigator

OKUMA Gaku  国立研究開発法人物質・材料研究機構, 構造材料研究拠点, 研究員 (70838945)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords焼結 / 放射光X線CT / 微構造 / 欠陥 / セラミックス / 3次元微構造解析 / 放射光X線トモグラフィー / FIB-SEMナノトモグラフィー / 積層セラミックコンデンサー(MLCC) / 内部欠陥 / X線CT / 微構造解析 / 高温変形 / 焼結/微構造制御 / 高温変形・破壊
Outline of Research at the Start

SPring-8の高分解能X線CTを用いて焼結中の3次元気孔構造変化の観察を行い,セラミックスの破壊源となりうる欠陥が形成されていく過程を追跡する.ミクロからナノに至るマルチスケール構造の膨大な情報を取得し, その意味を深いレベルで読み取ることにより, 複雑な気孔形状の時間変化の背後で働く駆動力を見通し, セラミックスのマルチスケール焼結プロセスの解明を目指す. このCT技術を, 耐熱部品,や電子部品など産業界で幅広く使われている代表的な酸化物のアルミナや, 低温同時焼成セラミックス, 固体酸化物形燃料電池といった積層材料の焼結プロセス開発に展開し, 産業発展のための学術的基盤を構築する.

Outline of Final Research Achievements

Synchrotron X-ray multiscale tomography is a 3D imaging method that combines microtomography and nanotomography to perform a high spatial resolution measurement with a wide field of view. We show how this method can be used to track the 3D microstructural evolution at multiple length scales in powder processing, sintering, and microfracture of ceramics. Heterogeneity, complexity, diversity, and hierarchical structure of powder compact lead to various types of defects that control the quality, reliability, and lifetime of products. The elimination and formation of defects are affected by applied stress in spark plasma sintering and by internal stresses generated during differential sintering and constrained sintering. The complex subsurface crack system induced by Vickers indentation demonstrates how heterogeneous microstructures control the toughening mechanisms.

Academic Significance and Societal Importance of the Research Achievements

放射光X線CT技術を, 耐熱部品,や電子部品など産業界で幅広く使われている代表的な酸化物のアルミナや, 積層材料, ガラスセラミックスの焼結プロセス開発に展開し, 産業発展のための学術的基盤を構築できた.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (59 results)

All 2023 2022 2021 2020 2019

All Journal Article (16 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 14 results,  Open Access: 6 results) Presentation (42 results) (of which Int'l Joint Research: 16 results,  Invited: 10 results) Book (1 results)

  • [Journal Article] Heterogeneities and defects in powder compacts and sintered alumina bodies visualized by using the synchrotron X-ray CT2023

    • Author(s)
      Okuma Gaku、Osada Toshio、Minagawa Haruki、Arai Yutaro、Inoue Ryo、Kakisawa Hideki、Shimoda Kazuya、Takeuchi Akihisa、Uesugi Masayuki、Tanaka Satoshi、Wakai Fumihiro
    • Journal Title

      Journal of the European Ceramic Society

      Volume: 43 Issue: 2 Pages: 486-492

    • DOI

      10.1016/j.jeurceramsoc.2022.10.020

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 3D Visualization of Morphological Evolution of Large Defects during Spark Plasma Sintering of Alumina Granules2023

    • Author(s)
      Okuma Gaku、Endo Masaya、Minagawa Haruki、Inoue Ryo、Kakisawa Hideki、Kohata Takuma、Osada Toshio、Yamamoto Takafumi、Azuma Masaki、Takeuchi Akihisa、Uesugi Masayuki、Guillon Olivier、Wakai Fumihiro
    • Journal Title

      Advanced Engineering Materials

      Volume: 2201534 Issue: 18 Pages: 2201534-2201534

    • DOI

      10.1002/adem.202201534

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Morphology of subsurface cracks in glass-ceramics induced by Vickers indentation observed by synchrotron X-ray multiscale tomography2022

    • Author(s)
      Okuma Gaku、Maeda Kei、Yoshida Satoshi、Takeuchi Akihisa、Wakai Fumihiro
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 6994-6994

    • DOI

      10.1038/s41598-022-11084-0

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Domain coarsening in viscous sintering as a result of topological pore evolution2022

    • Author(s)
      Okuma Gaku、Tanaka Satoshi、Wakai Fumihiro
    • Journal Title

      Journal of the European Ceramic Society

      Volume: 42 Issue: 2 Pages: 729-733

    • DOI

      10.1016/j.jeurceramsoc.2021.10.013

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mechanical Properties of CaO-Al2O3-SiO2 Glass-Ceramics Precipitating Hexagonal CaAl2Si2O8 Crystals2021

    • Author(s)
      Maeda Kei、Akatsuka Kosho、Okuma Gaku、Yasumori Atsuo
    • Journal Title

      Crystals

      Volume: 11 Issue: 4 Pages: 393-393

    • DOI

      10.3390/cryst11040393

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anisotropic microstructural evolution and coarsening in free sintering and constrained sintering of metal film by using FIB-SEM tomography2021

    • Author(s)
      Okuma Gaku、Miyaki Ryo、Shinobe Kan、Sciazko Anna、Shimura Takaaki、Yan Zilin、Hara Shotaro、Ogashiwa Toshinori、Shikazono Naoki、Wakai Fumihiro
    • Journal Title

      Acta Materialia

      Volume: 215 Pages: 117087-117087

    • DOI

      10.1016/j.actamat.2021.117087

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modelling of elimination of strength-limiting defects by pressure-assisted sintering at low stress levels2021

    • Author(s)
      Wakai Fumihiro、Okuma Gaku、Mucke Robert、Guillon Olivier
    • Journal Title

      Journal of the European Ceramic Society

      Volume: 41 Issue: 16 Pages: 202-210

    • DOI

      10.1016/j.jeurceramsoc.2021.09.040

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microstructural evolution of electrodes in sintering of multi-layer ceramic capacitors (MLCC) observed by synchrotron X-ray nano-CT2021

    • Author(s)
      Okuma Gaku、Saito Naoya、Mizuno Kotaro、Iwazaki Yoshiki、Kishi Hiroshi、Takeuchi Akihisa、Uesugi Masayuki、Uesugi Kentaro、Wakai Fumihiro
    • Journal Title

      Acta Materialia

      Volume: 206 Pages: 116605-116605

    • DOI

      10.1016/j.actamat.2020.116605

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 放射光X線ナノCTによる電子デバイスの信頼性解析:MLCCの電極構造形成プロセス2021

    • Author(s)
      大熊 学, 斎藤 直哉, 水野 高太郎, 若井 史博
    • Journal Title

      Ceramics Japan

      Volume: 56 Pages: 39-43

    • Related Report
      2020 Research-status Report
  • [Journal Article] 放射光マルチスケー ルトモグラフィーで見る粉体成形・焼結 プロセスにおける欠陥形成と強度信頼性2020

    • Author(s)
      大熊 学, 若井 史博
    • Journal Title

      CERAMICS JAPAN

      Volume: 55 Pages: 514-517

    • Related Report
      2020 Research-status Report
  • [Journal Article] Investigation of the stability of NASICON-type solid electrolyte in neutral-alkaline aqueous solutions2020

    • Author(s)
      Hou Minjie、Qu Tao、Zhang Qingkai、Yaochun Yao、Dai Yongnian、Liang Feng、Okuma Gaku、Hayashi Katsuro
    • Journal Title

      Corrosion Science

      Volume: 177 Pages: 109012-109012

    • DOI

      10.1016/j.corsci.2020.109012

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of Macroscopic Mechanical Properties from 3-D Visualization of Microstructure in Sintering2019

    • Author(s)
      OKUMA Gaku、WATANABE Shuhei、SHINOBE Kan、NISHIYAMA Norimasa、TAKEUCHI Akihisa、UESUGI Kentaro、TANAKA Satoshi、WAKAI Fumihiro
    • Journal Title

      Journal of the Japan Society of Powder and Powder Metallurgy

      Volume: 66 Issue: 12 Pages: 604-610

    • DOI

      10.2497/jjspm.66.604

    • NAID

      130007761261

    • ISSN
      0532-8799, 1880-9014
    • Year and Date
      2019-12-15
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dynamics of Sintering of Multi-Particles2019

    • Author(s)
      WAKAI Fumihiro、OKUMA Gaku、NISHIYAMA Norimasa、GUILLON Olivier
    • Journal Title

      Journal of the Japan Society of Powder and Powder Metallurgy

      Volume: 66 Issue: 12 Pages: 598-603

    • DOI

      10.2497/jjspm.66.598

    • NAID

      130007761271

    • ISSN
      0532-8799, 1880-9014
    • Year and Date
      2019-12-15
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 3D multiscale-imaging of processing-induced defects formed during sintering of hierarchical powder packings2019

    • Author(s)
      Okuma Gaku、Watanabe Shuhei、Shinobe Kan、Nishiyama Norimasa、Takeuchi Akihisa、Uesugi Kentaro、Tanaka Satoshi、Wakai Fumihiro
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 11595-11595

    • DOI

      10.1038/s41598-019-48127-y

    • NAID

      120006889206

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of sintering stress and bulk viscosity from sinter-forging and X-ray microtomography methods: a Review2019

    • Author(s)
      Okuma Gaku、Wakai Fumihiro、Tanaka Satoshi、Hondo Tsuyoshi、Gonzalez-Julian Jesus、Guillon Olivier
    • Journal Title

      Materials Today: Proceedings

      Volume: 16 Pages: 42-48

    • DOI

      10.1016/j.matpr.2019.05.285

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sintering mechanics of ceramics: a short review2019

    • Author(s)
      Wakai Fumihiro、Okuma Gaku、Nishiyama Norimasa
    • Journal Title

      Materials Today: Proceedings

      Volume: 16 Pages: 4-13

    • DOI

      10.1016/j.matpr.2019.05.304

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 放射光X線CT技術を駆使した高信頼性材料設計2023

    • Author(s)
      大熊 学
    • Organizer
      日本セラミックス協会2023年年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 超高信頼性セラミックス創成に貢献する焼結プロセスの放射光X線マルチスケールCT観察2023

    • Author(s)
      大熊 学
    • Organizer
      第171回 超塑性研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Synchrotron X-ray Multiscale CT observation of sintering process for reliable ceramics2022

    • Author(s)
      OKUMA Gaku, OSADA Toshio, WAKAI Fumihiro
    • Organizer
      9th Tsukuba International Coating Symposium (TICS 9)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Heterogeneous evolution of pore distribution during sintering of a submicron alumina powder observed by using synchrotron X-ray CT2022

    • Author(s)
      OKUMA Gaku, OSADA Toshio, MINAGAWA Haruki, ARAI Yutaro, INOUE Ryo, KAKISAWA, Hideki, TANAKA Satoshi, WAKAI Fumihiro
    • Organizer
      ICCCI2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morphology of subsurface cracks induced by Vickers indentation observed by synchrotron X-ray multiscale tomography: a case study of CaO-Al2O3-SiO2 glass-ceramic2022

    • Author(s)
      OKUMA Gaku, MAEDA Kei, YOSHIDA Satoshi, WAKAI Fumihiro
    • Organizer
      ICM&P 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射光X線マルチスケールCTで観る結晶化ガラスCaO-Al2O3-SiO2のビッカースインデンテーション誘起の表面下亀裂形態2022

    • Author(s)
      大熊 学, 前田 敬, 吉田 智, 若井 史博
    • Organizer
      日本金属学会2022年秋期(第171回)講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ビッカースインデンテーション誘起の表面下亀裂形態の放射光X線マルチスケールCT観察:結晶化ガラス CaO-Al2O3-SiO22022

    • Author(s)
      大熊 学, 前田 敬, 吉田 智, 若井 史博
    • Organizer
      日本セラミックス協会第35回秋季シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 金属膜の自由焼結および拘束焼結中の異方的な微細構造進展のFIB-SEMトモグラフィー解析2022

    • Author(s)
      大熊 学, 若井 史博
    • Organizer
      日本金属学会2022年春期(第170回)講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 金属膜の自由焼結および拘束焼結中の異方的な微細構造進展のFIB-SEMトモグラフィー解析2022

    • Author(s)
      大熊 学, 若井 史博
    • Organizer
      日本金属学会 2022年春期講演大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 放射光X線ナノCTによる電子デバイスの信頼性解析:MLCCの電極構造形成プロセス2021

    • Author(s)
      大熊 学, 斎藤 直哉, 水野 高太郎, 若井 史博
    • Organizer
      日本金属学会 2021年秋期(第169回)講演大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高信頼性材料設計のための放射光X線CT3次元ナノスケール解析2021

    • Author(s)
      大熊 学
    • Organizer
      第6回全固体電池MOP講習会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 高信頼性材料設計のための 放射光X線CT3次元ナノスケール解析2021

    • Author(s)
      大熊 学, 若井 史博
    • Organizer
      日本セラミックス協会 第34回秋季シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 放射光X線マルチスケールCTで見る焼結プロセスにおける欠陥形成と強度信頼性2021

    • Author(s)
      大熊 学
    • Organizer
      日本物理学会 第31回格子欠陥フォーラム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 放射線X線CTによる電子デバイスの信頼性解析:MLCCの電極構造形成プロセス2021

    • Author(s)
      大熊 学, 若井 史博
    • Organizer
      耐熱複合材料・コーティングの高度化に関する研究会 第4回ワークショップ
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 放射光X線ナノCTによる電子デバイスの信頼性解析: MLCCの電極構造形成プロセス2021

    • Author(s)
      大熊 学, 斎藤 直哉, 水野 高太郎, 若井 史博
    • Organizer
      日本機械学会第 29 回機械材料・材料加工技術講演会(M&P2021), 一般社団法人 日本機械学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 熱間等方加圧(HIP)による欠陥収縮過程の放射光X線CT観察2021

    • Author(s)
      皆川 開, 大熊 学, 田中 諭, 垣澤 英樹, 若井 史博, 井上 遼
    • Organizer
      日本機械学会第 29 回機械材料・材料加工技術講演会(M&P2021), 一般社団法人 日本機械学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 金属膜の自由焼結および拘束焼結中の異方的な微細構造進展と粗大化プロセスのFIB-SEMトモグラフィー解析2021

    • Author(s)
      大熊 学, 若井 史博
    • Organizer
      2021年度秋季大会 (第128回講演大会) 粉末冶金協会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高信頼性材料設計のための放射光X線CT 3次元マルチスケール解析2021

    • Author(s)
      大熊 学
    • Organizer
      セラミック材料研究会2021
    • Related Report
      2021 Research-status Report
  • [Presentation] Reliability analysis of electronic device by using synchrotron X-ray nano-CT : Microstructural evolution of electrodes of MLCC2021

    • Author(s)
      Gaku Okuma, Naoya Saito, Kotaro Mizuno, Fumihiro Wakai
    • Organizer
      International Conference on the Science and Technology for Advanced Ceramics (STAC-12)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reliability analysis of electronic device by using synchrotron X-ray nano-CT : Microstructural evolution of electrodes of MLCC2021

    • Author(s)
      Gaku Okuma
    • Organizer
      9th Tsukuba International Coating Symposium
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 放射光X線ナノCTによる電子デバイスの信頼性解析~MLCCの電極構造形成プロセス~2021

    • Author(s)
      大熊 学, 斉藤 直哉, 若井 史博, 竹内 晃久, 上杉 健太朗, 水野 高太郎, 岩崎 誉志紀, 岸 弘志
    • Organizer
      バルクセラミックスの信頼性に関するワークショップ
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 結像型X線ナノCTによる電子デバイスの信頼性解析:MLCCの電極構造形成プロセス2021

    • Author(s)
      大熊 学, 齋藤 直哉, 若井 史博, 水野 高太郎
    • Organizer
      公益社団法人日本セラミックス協会2021年年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 加圧焼結によるアルミナ焼結体中の 内部欠陥収縮過程の放射光X線CT観察2021

    • Author(s)
      遠藤 順也, 大熊 学, 若井 史博
    • Organizer
      公益社団法人日本セラミックス協会2021年年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 放射光マルチスケール CTで見る粉体成形・焼結プロセスにおける欠陥形成と強度信頼性2020

    • Author(s)
      大熊 学, 遠藤 順也, 田中 諭, 若井 史博
    • Organizer
      公益社団法人日本セラミックス協会 第33回秋季シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] SPring-8 放射光マルチスケール CTで見る粉体成形・焼結プロセスにおける欠陥形成と強度信頼性2020

    • Author(s)
      大熊 学, 田中 諭, 若井 史博
    • Organizer
      第28回機械材料・材料加工技術講演会(M&P2020)
    • Related Report
      2020 Research-status Report
  • [Presentation] 放射光X線ナノCTを用いた積層セラミックスコンデンサーの焼成過程における緻密化挙動の3D解析2020

    • Author(s)
      大熊学, 斉藤直哉, 竹内晃久, 上杉健太朗, 水野高太郎, 岩崎誉志紀, 岸弘志, 若井史博
    • Organizer
      第2回 3次元可視化による機能性セラミックス製造プロセス基礎科学に関する研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] FIB-SEBトモグラフィーで見るAuサブミクロンペーストの自由焼結および拘束焼結中の異方的な微細構造進展2020

    • Author(s)
      大熊 学, 宮木 亮, 篠部 寛, 若井 史博, Anna Sciazko, 鹿園 直毅, 志村 敬彬, 原 祥太郎, 小柏 俊典
    • Organizer
      日本セラミックス協会2020年年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 3D Multiscale-imaging of Processing-induced Defects Formed during Sintering of Alumina2019

    • Author(s)
      Gaku Okuma, Shuhei Watanabe, Kan Shinobe, Norimasa Nishiyama, Fumihiro Wakai, Akihisa Takeuchi, Kentaro Uesugi, Satoshi Tanaka
    • Organizer
      MATERIALS SCIENCE & TECHNOLOGY (MS&T19)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanics of Sintering in Formation and Disappearance of a Closed Pore2019

    • Author(s)
      Fumihiro Wakai, Gaku Okuma, Norimasa Nishiyama, Olivier Guillon
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Processing-induced defects formed during sintering of alumina observed by multiscale 3D X-ray tomography2019

    • Author(s)
      Gaku Okuma, Shuhei Watanabe, Kan Shinobe, Norimasa Nishiyama, Fumihiro Wakai, Akihisa Takeuchi, Kentaro Uesugi, Satoshi Tanaka
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sintering Forces Acting among Particles during Sintering by Grain Boundary/Surface Diffusion2019

    • Author(s)
      Fumihiro Wakai, Gaku Okuma, Norimasa Nishiyama, Olivier Guillon
    • Organizer
      MATERIALS SCIENCE & TECHNOLOGY (MS&T19)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 3D processing-induced defects formed during sintering of alumina observed by multiscale X-ray CT2019

    • Author(s)
      Gaku Okuma, Shuhei Watanabe, Kan Shinobe, Norimasa Nishiyama, Fumihiro Wakai, Akihisa Takeuchi, Kentaro Uesugi, Satoshi Tanaka
    • Organizer
      International Conference on the Science and Technology for Advanced Ceramics (STAC-11)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of transparent polycrystalline MgO by combination of spark plasma sintering and high pressure-high temperature synthesis2019

    • Author(s)
      Masaya ENDO, Gaku OKUMA, Norimasa NISHIYAMA, Fumihiro WAKAI
    • Organizer
      MATERIALS RESEARCH MEETING 2019 (MRM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prediction of fracture from various shaped defects by XFEM2019

    • Author(s)
      Shuhei WATANABE, Gaku OKUMA, Yosuke SATO, Tomoki SEKIYA, Norimasa NISHIYAMA, Fumihiro WAKAI
    • Organizer
      MATERIALS RESEARCH MEETING 2019 (MRM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Micromechanics of Sintering: Pinch-off of Pore Channel, Formation andDisappearance of a Closed Pore2019

    • Author(s)
      Fumihiro WAKAI, Gaku OKUMA, Norimasa NISHIYAMA, Olivier GUILLON
    • Organizer
      MATERIALS RESEARCH MEETING 2019 (MRM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Synchrotron X-ray CT imaging of processing-induced defects formed during sintering of alumina2019

    • Author(s)
      Gaku OKUMA, Shuhei WATANABE, Kan SHINOBE, Norimasa NISHIYAMA, Akihisa TAKEUCHI, Kentaro UESUGI, Satoshi TANAKA, Fumihiro WAKAI
    • Organizer
      MATERIALS RESEARCH MEETING 2019 (MRM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evolution of anisotropic microstructures in free sintering and constrained sintering of Au sub-micron particles observed by FIB-SEM tomography2019

    • Author(s)
      Ryo MIYAKI, Kan SHINOBE, Gaku OKUMA, Anna SCIAZKO, Takaaki SHIMURA, Shotaro HARA, Toshinori OGASHIWA, Naoki SHIKAZONO, Norimasa NISHIYAMA, Fumihiro WAKAI
    • Organizer
      MATERIALS RESEARCH MEETING 2019 (MRM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 3D evolution of anisotropic microstructures in free sintering and constrained sintering of Au sub-micron particles observed by FIB-SEM tomography2019

    • Author(s)
      Ryo Miyaki, Gaku Okuma, Kan Shinobe, Anna Sciazko, Takaaki Shimura, Shotaro Hara, Toshinori Ogashiwa, Naoki Shikazono, Norimasa Nishiyama, Fumihiro Wakai
    • Organizer
      The 4th International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-4)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 通電加圧焼結による亀裂状内部欠陥消失過程の放射光X線CT観察2019

    • Author(s)
      大熊 学, 遠藤 順也, 渡辺 修平, 西山 宣正, 竹内 晃久, 上杉 健太朗, 田中 諭, 若井 史博
    • Organizer
      2019 年度 第1回バルクセラミックスの信頼性に関するワークショップ
    • Related Report
      2019 Research-status Report
  • [Presentation] SPring-8のマルチスケールX線CTで見るアルミナの焼結中の3次元内部欠陥形成プロセス2019

    • Author(s)
      大熊 学, 渡辺 修平, 篠部 寛, 西山 宣正, 若井 史博, 竹内 晃久, 上杉 健太朗, 田中 諭
    • Organizer
      019年度フロンティア材料研究所若手研究者発表会及び先端無機材料共同研究拠点報告会
    • Related Report
      2019 Research-status Report
  • [Presentation] SPring-8のマルチスケールX線CTで見るアルミナの焼結中の3次元内部欠陥形成プロセス2019

    • Author(s)
      大熊 学, 渡辺 修平, 篠部 寛, 西山 宣正, 若井 史博, 竹内晃久, 上杉 健太朗, 山口 駿太郎, 田中 諭
    • Organizer
      2019年度春季大会 (第123回講演大会) 粉末冶金協会
    • Related Report
      2019 Research-status Report
  • [Presentation] 焼結プロセスのミクロ力学原理2019

    • Author(s)
      若井 史博, 大熊 学, 西山 宣正, Guillon Olivier
    • Organizer
      2019年度春季大会 (第123回講演大会) 粉末冶金協会
    • Related Report
      2019 Research-status Report
  • [Book] 全固体電池の界面制御と作製プロセス 第22節 放射光マルチスケールCT技術を用いたセラミックス内部欠陥の3次元形状観察2020

    • Author(s)
      大熊学、若井史博
    • Total Pages
      8
    • Publisher
      技術情報協会
    • ISBN
      9784861047800
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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