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Development of self-recovery glass materials

Research Project

Project/Area Number 21K18909
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 30:Applied physics and engineering and related fields
Research InstitutionOsaka University

Principal Investigator

Yamanoi Kohei  大阪大学, レーザー科学研究所, 准教授 (30722813)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsガラス材料 / 光学ガラス / 自己修復
Outline of Research at the Start

本提案では、欠陥や物理的な応力によるクラック(割れ)の破壊現象からの自己修復可能な結晶材料及びガラス材料の開発を目的として、無機ガラス材料の自己修復現象のメカニズム解明を行う。無機材料における自己修復機能メカニズムを解明し付与することで、物理的クラックによる破壊から速やかに自己修復する強靭な透明材料を開発し、持続可能な社会の実現に向けて、日常生活から過酷環境まで広く使用できる光学素子の開発を実現する。

Outline of Final Research Achievements

Defects and fracture phenomena in crystals and glass have been studied for a long time. In recent years, organic glass and resins with self-repairing functions have been developed, but because these are organic materials, their use is limited to limited fields such as coatings. If a small crack occurs in inorganic crystals or glass (even if it is on the order of a few tens of nanometers), stress will concentrate from that point, causing easy fracture. This study has demonstrated the reproducibility of the glass crack recovery phenomenon discovered, and various measurements have revealed that the part of the mechanism is due to optical contact.

Academic Significance and Societal Importance of the Research Achievements

Optical contactによる回復により、レンズなどの透明材料においては、自己修復材料として十分に機能できる。ガラス材料においては、僅かな割れがガラスの脆弱性を誘起するため、クラックの初期段階で自己修復するような材料を開発すれば、ガラスの脆弱性を克服することができる。本研究で示したように、自己修復機能により割れが修復される材料があれば、過酷環境用途のみならずスマートフォンの画面や車のフロントガラスなど、身近に存在する様々な用途にも応用が期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 1 results)

  • [Int'l Joint Research] チェコ科学アカデミー(チェコ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Nakhon Pathom Rajabhat university(タイ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Massay university(ニュージーランド)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Nakhon Pathom Rajabhat University(タイ)

    • Related Report
      2022 Research-status Report
  • [Journal Article] The influence of CeF3 on radiation hardness and luminescence properties of Gd2O3?B2O3 glass scintillator2022

    • Author(s)
      Kaewnuam E.、Wantana N.、Ruangtaweep Y.、Cadatal-Raduban M.、Yamanoi K.、Kim H. J.、Kidkhunthod P.、Kaewkhao J.
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 11059-11059

    • DOI

      10.1038/s41598-022-14833-3

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Physical and photoluminescence investigations of Eu3+ doped gadolinium borate scintillating glass2022

    • Author(s)
      Damdee B.、Kirdsiri K.、Kim H.J.、Yamanoi K.、Wongdamnern N.、Kidkhunthod P.、Rajaramakrishna R.、Kaewkhao J.
    • Journal Title

      Radiation Physics and Chemistry

      Volume: 200 Pages: 110386-110386

    • DOI

      10.1016/j.radphyschem.2022.110386

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The study on BWGd:Nd glass for new laser amplifier: Properties, theoretical and practical investigations2022

    • Author(s)
      Kaewnuam E.、Wantana N.、Tu Nguyen Xuan、Minh Pham Hong、Yamanoi K.、Kaewkhao J.
    • Journal Title

      Optical Materials

      Volume: 129 Pages: 112535-112535

    • DOI

      10.1016/j.optmat.2022.112535

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of Gd2O3 concentration on X-rays induced and photoluminescence characteristics of Eu3+ - Activated Gd2O3-B2O3 glass2021

    • Author(s)
      B.Damdee, K.Kirdsiria, H.J.Kim, K.Yamanoi, A.Angnanon, N.Triamnak, S.Kothan, J.Kaewkhao
    • Journal Title

      Radiation Physics and Chemistry

      Volume: 189 Pages: 109681-109681

    • DOI

      10.1016/j.radphyschem.2021.109681

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2021-07-13   Modified: 2025-01-30  

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