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Synthesis of nano-bubble dispersion strengthened (BDS) alloys by organic-inorganic combination and elucidation of its strength mechanism

Research Project

Project/Area Number 24656425
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Material processing/treatments
Research InstitutionHokkaido University

Principal Investigator

UKAI Shigeharu  北海道大学, 工学(系)研究科(研究院), 教授 (00421529)

Co-Investigator(Kenkyū-buntansha) ABE Yosuke  国立研究開発法人日本原子力研究開発機構, 研究員 (50400403)
大野 直子  北海道大学, 工学(系)研究科(研究院), 助教 (40512489)
Co-Investigator(Renkei-kenkyūsha) OONO Naoko  北海道大学, 大学院工学研究院, 助教 (40512489)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsナノプロセス / ナノバブル / 転位 / 構造・機能材料
Outline of Final Research Achievements

Nano bubbles in the size less than 10 nm have been successfully synthesized in copper metal by means of dissociated gases of organic PMMA powder. From the macroscopic hardness measurement of the nano-bubble dispersed copper (BDS-Cu) as well as direct measurement of bow-out angle of the moving dislocation on the bubble by in-situ TEM tensile test, an interaction strength between nano-bubble and dislocation was evaluated. The dislocation-bubble elastic interaction energy and stacking fault width were found to affect those interaction strength. MD simulation analyses provided information on a critical stress when an edge dislocation passes through bubbles, by replacing the dissociated gases with helium.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (8 results)

All 2014 2013

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results)

  • [Journal Article] Synthesis of bubble dispersion strengthened copper by using pyrolysis gases of Poly (methylmethacrylate)2014

    • Author(s)
      Shi Shi, Naoko Oono, Shigeharu Ukai, Yosuke Abe
    • Journal Title

      Materials Science & Engineering A

      Volume: 617

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Synthesis of nano-bubble dispersion strengthened (N-BDS) metal by PMMA dissociated polymer gases2013

    • Author(s)
      N. Oono, R. Kawano, S. Shi, S. Ukai, S. Hayashi
    • Journal Title

      Mater. Sci. Eng. A

      Volume: 582 Pages: 245-247

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Irradiation effect of nano-bubble dispersion strengthened (N-BDS) alloy2013

    • Author(s)
      N. Oono, R. Kawano, S. Shi, S. Ukai, S. Hayashi, S. Kondo, O. Hashitomi, A. Kimura
    • Journal Title

      J. Nucl. Mater.

      Volume: 442 Pages: 365-369

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Nano-bubble dispersion in copper investigated by means of SAXS and SANS2014

    • Author(s)
      施 詩, 大野直子, 鵜飼重治, 石田倫教, 大沼正人, 阿部陽介
    • Organizer
      日本金属学会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-09-24 – 2014-09-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] In situ TEM observation under tensile loading in bubble dispersion strengthened copper2014

    • Author(s)
      施詩、大野直子、鵜飼重治、林重成、東郷広一、福元謙一、阿部陽介
    • Organizer
      公益社団法人日本金属学会春期講演大会
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Related Report
      2013 Research-status Report
  • [Presentation] Comparing the strengthening effects of nano-size bubbles and oxide particles in copper2013

    • Author(s)
      施詩、大野直子、鵜飼重治、林重成
    • Organizer
      公益社団法人日本金属学会秋期講演大会
    • Place of Presentation
      金沢大学(金沢市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Synthesis of Bubble Dispersion Strengthened (BDS) Copper by using PMMA2013

    • Author(s)
      施詩、大野直子, 鵜飼重治, 林重成、阿部陽介
    • Organizer
      日本金属学会春季講演大会
    • Place of Presentation
      東京理科大学(東京都)
    • Related Report
      2012 Research-status Report
  • [Presentation] Synthesis of Bubble Dispersion Strengthened (BDS) Copper by using PMMA2013

    • Author(s)
      施詩、大野直子, 鵜飼重治, 林重成
    • Organizer
      日本金属学会北海道支部大会
    • Place of Presentation
      室蘭工業大学(北海道)
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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