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The effect of light irradiation on the plastic deformation behavior of solid materials

Research Project

Project/Area Number 21H04532
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Research InstitutionOsaka University

Principal Investigator

Nakamura Atsutomo  大阪大学, 大学院基礎工学研究科, 教授 (20419675)

Co-Investigator(Kenkyū-buntansha) 栃木 栄太  東京大学, 生産技術研究所, 准教授 (50709483)
Project Period (FY) 2021-04-05 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥42,900,000 (Direct Cost: ¥33,000,000、Indirect Cost: ¥9,900,000)
Fiscal Year 2023: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2022: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2021: ¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000)
Keywords材料強度 / 転位 / 光環境 / 塑性 / 電子顕微鏡 / 結晶塑性 / 固体 / 塑性変形 / 結晶 / 力学特性 / 光環境効果 / 力学試験 / 外場効果 / 光環境制御 / 光塑性
Outline of Research at the Start

環境光が固体物質の強さや脆さに影響を及ぼすことが最近報告されている。しかし、そのメカニズムの多くは未だ不明であり、現在の材料力学・機械材料学分野において、これらを解明することは重要な課題となっている。金属の光電効果に知られるように、光と物質の相互作用は半導体に限らないが、これまでの研究は半導体に関するものが多い。そこで本研究では、金属を含む原子間結合状態の異なる複数の固体物質において、力学試験により光の影響を系統的に調査し、光の影響を理解しメカニズムの解明を試みる。なお、光は表面で物質とより強く相互作用を起こすと考えられるので、表面近傍の評価が可能な微小力学試験を中心に研究を遂行する。

Outline of Final Research Achievements

The phenomena by which light affects the strength and brittleness of solid materials have not yet been systematically elucidated, and it is unclear which materials are affected by light and to what extent. In this study, we irradiated various solid materials with light and systematically investigated changes in their strength properties. In particular, we focused on dislocations in crystals and evaluated the effect of light on the behavior of dislocations. As a result, unexpected light environment effects were found in various materials. In particular, it was confirmed that the light environmental effect varies significantly depending on the relationship between the structural features of the crystal and the direction in which the force is applied.

Academic Significance and Societal Importance of the Research Achievements

金属以外の無機固体物質の多くは、脆性的で容易に破壊するため、その応用が限定的となっていた。最近、光が材料の強度特性に顕著に影響することが確認されたので、本研究では異なる元素、構造を有する各種固体物質に対して、光環境制御下で力学試験を実施した。その結果、固体物質がどのように変形しどのように壊れていくのかという材料強度の基礎研究において、光という環境が変わるだけで想定外の強度特性を示すことがあらためて確認された。今後、国際連携を行いつつ現象をより深く理解することで、材料の用途拡大に繋げることが可能と考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (17 results)

All 2024 2023 2022 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Int'l Joint Research] ダルムシュタット工科大学/カールスルーエ工科大学(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ジョージア工科大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 清華大学/西安交通大学(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] TU Darmstadt(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Experimental Guides for Metallic Materials:2. Measurement and Evaluation of Material Properties: 2-1 Mechanical Properties:2-1-6 Nanoindentation Test2024

    • Author(s)
      Li Yan、Nakamura Atsutomo
    • Journal Title

      Materia Japan

      Volume: 63 Issue: 2 Pages: 115-124

    • DOI

      10.2320/materia.63.115

    • ISSN
      1340-2625, 1884-5843
    • Year and Date
      2024-02-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bringing the photoplastic effect in ZnO to light: A photoindentation study on pyramidal slip2024

    • Author(s)
      Oguri Hiroto、Li Yan、Tochigi Eita、Fang Xufei、Tanigaki Kenichi、Ogura Yu、Matsunaga Katsuyuki、Nakamura Atsutomo
    • Journal Title

      Journal of the European Ceramic Society

      Volume: 44 Issue: 2 Pages: 1301-1305

    • DOI

      10.1016/j.jeurceramsoc.2023.09.060

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Strain-rate insensitive photoindentation pop-in behavior in ZnS single crystals at room temperature2023

    • Author(s)
      Li Yan、Oguri Hiroto、Matsubara Ayaka、Tochigi Eita、Fang Xufei、Ogura Yu、Matsunaga Katsuyuki、Nakamura Atsutomo
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 131 Issue: 10 Pages: 685-689

    • DOI

      10.2109/jcersj2.23064

    • ISSN
      1348-6535, 1882-0743
    • Year and Date
      2023-10-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The effect of room‐temperature plastic deformation in darkness on the photoluminescence properties of ZnS2023

    • Author(s)
      Ogura Yu、Nakamura Atsutomo、Kameyama Tatsuya、Kurokawa Yasuyoshi、Tochigi Eita、Shibata Naoya、Torimoto Tsukasa、Hoshino Sena、Yokoi Tatsuya、Matsunaga Katsuyuki
    • Journal Title

      Journal of the American Ceramic Society

      Volume: 107 Issue: 4 Pages: 2040-2047

    • DOI

      10.1111/jace.19564

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Room-temperature plastic deformation modes of cubic ZnS crystals2023

    • Author(s)
      Kitou Shunsuke、Oshima Yu、Nakamura Atsutomo、Matsunaga Katsuyuki、Sawa Hiroshi
    • Journal Title

      Acta Materialia

      Volume: 247 Pages: 118738-118738

    • DOI

      10.1016/j.actamat.2023.118738

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shedding new light on the dislocation-mediated plasticity in wurtzite ZnO single crystals by photoindentation2023

    • Author(s)
      Li Yan、Fang Xufei、Tochigi Eita、Oshima Yu、Hoshino Sena、Tanaka Takazumi、Oguri Hiroto、Ogata Shigenobu、Ikuhara Yuichi、Matsunaga Katsuyuki、Nakamura Atsutomo
    • Journal Title

      Journal of Materials Science and Technology

      Volume: 156 Pages: 206-216

    • DOI

      10.1016/j.jmst.2023.02.017

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microstructure and conductivity of blacklight‐sintered TiO2, YSZ, and Li0.33La0.57TiO32022

    • Author(s)
      Porz Lukas、Scherer Michael、Muhammad Qaisar Khushi、Higuchi Kimitaka、Li Yan、Koga Shuhei、Nakamura Atsutomo、Rheinheimer Wolfgang、Fromling Till
    • Journal Title

      Journal of the American Ceramic Society

      Volume: 105 Issue: 12 Pages: 7030-7035

    • DOI

      10.1111/jace.18686

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 化合物半導体におけるナノスケール転位挙動と室温塑性2024

    • Author(s)
      中村篤智
    • Organizer
      電子顕微鏡解析技術フォーラム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 無機材料における転位挙動と機能発現2024

    • Author(s)
      中村篤智
    • Organizer
      日本金属学会2024年春期(第174回)講演大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Control of Dislocation Behavior to Improve Low Temperature Plasticity of Ceramic Materials2022

    • Author(s)
      A. Nakamura
    • Organizer
      CIMTEC 2022 - 15th International Conference on Modern Materials and Technologies
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Room-temperature deformation behavior of semiconducting crystals2022

    • Author(s)
      Atsutomo Nakamura
    • Organizer
      WCCM-APCOM
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An Experimental Study of Light Effects on Dislocation Behavior in Inorganic Semiconductor Materials2022

    • Author(s)
      Atsutomo NAKAMURA
    • Organizer
      ICMR2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Behavior and functionality of dislocations in inorganic crystals2022

    • Author(s)
      Atsutomo Nakamura
    • Organizer
      TimeMan Seminar
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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