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Behavior of hydrogen isotope retention in lattice defects of Plasma Facing Materials

Research Project

Project/Area Number 21760692
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Nuclear fusion studies
Research InstitutionUniversity of the Ryukyus

Principal Investigator

IWAKIRI Hirotomo  琉球大学, 教育学部, 准教授 (80325480)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords水素 / 格子欠陥 / 分子動力学法 / 第一原理計算 / 金属間化合物 / 水素同位体 / ヘリウム / イオンビーム照射 / 核融合炉材料 / ベリリウム金属間化合物
Research Abstract

Molecular dynamics simulations of helium atoms in Fe were performed. As a result, the new knowledge about the growth process of a helium bubble was acquired.
The interaction of atomic hydrogen with Be_<12> Ti has been also studied by means of first principles electronic-structure methods. Hydrogen atoms accommodated with in twenty different sets of lattice site, resulting in solution energy of 0. 1 eV~0. 7 eV.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (15 results)

All 2012 2011 2010 2009

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (4 results)

  • [Journal Article] Studies of reflectivity degradation of retroreflectors in LHD and mitigation of impurity deposition using shaped diagnostic ducts and protective windows2012

    • Author(s)
      T. Akiyama, N. Yoshida, K. Kawahata, M. Tokitani, H. Iwakiri, S. Okajima, K. Nakayama
    • Journal Title

      Nucl. Fusion

      Volume: 52 Pages: 63014-63014

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Formation of vacancy clusters in tungsten crystals under hydrogen-rich condition2011

    • Author(s)
      D. Kato, H. Iwakiri, K. Morishita
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.417 Pages: 1115-1118

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Annihilation of interstitial-type dislocation loops in α-Fe during He irradiation2011

    • Author(s)
      Q. Xu, H. Iwakiri, et al
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.417 Pages: 1022-1025

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Deuterium retention in F82H after low energy hydrogen ion irradiation2011

    • Author(s)
      D.Hamaguchi, H.Iwakiri, H.Kawamura, et al
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.417 Pages: 1147-1149

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Annihilation of interstitial-type dislocation loops in α-Fe during Heirradiation2011

    • Author(s)
      Q.Xu, H.Iwakiri, et al
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.417 Pages: 1022-1025

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Behavior of hydrogen isotope retention in carbon implanted tungsten2009

    • Author(s)
      Y. Oya, H. Iwakiri, et al
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.390-391 Pages: 390-391

    • NAID

      120001794390

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous irradiation effects of hydrogen and helium ions on tungsten2009

    • Author(s)
      Ueda. Y, H. Iwakiri, et al
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.390-391 Pages: 390-391

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] The trapping behavior of deuterium in F82H ferritic/martensitic steel2009

    • Author(s)
      D. Hamaguchi, H. Iwakiri, H. Kawamura, et al
    • Journal Title

      Journal of Nuclear Materials

      Volume: Vol.386-388 Pages: 375-378

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous irradiation effects of hydrogen and helium ions on tungsten2009

    • Author(s)
      Y.Ueda, H.Iwkiri, et al.
    • Journal Title

      Journal of Nuclear Materials 368-388

      Pages: 725-728

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Behavior of hydrogen isotope retention in carbon implanted tungsten2009

    • Author(s)
      Y.Oya, H.Iwakiri, et al.
    • Journal Title

      Journal of Nuclear Materials 390

      Pages: 622-625

    • NAID

      120001794390

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The trapping behavior of deuterium in F82H ferritic/martensitic steel2009

    • Author(s)
      D.Hamaguchi, H.Iwakiri, et al.
    • Journal Title

      Journal of Nuclear Materials 386

      Pages: 375-378

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 半導体・絶縁体による粒子線照射損傷のモニタリング~光学特性変化を中心として~2011

    • Author(s)
      岩切宏友
    • Organizer
      軽水炉燃料に関する研究会
    • Place of Presentation
      京都大学宇治キャンパス(京都府宇治市)
    • Year and Date
      2011-11-30
    • Related Report
      2011 Final Research Report
  • [Presentation] ヘリウムイオン照射を受けた固体材料におけるナノ構造変化2010

    • Author(s)
      岩切宏友
    • Organizer
      第10回琉大物性研究会
    • Place of Presentation
      琉球大学(沖縄県西原町)
    • Year and Date
      2010-12-11
    • Related Report
      2011 Final Research Report
  • [Presentation] 核融合炉材料照射下挙動のマルチスケールモデリング~制御イオン照射実験2009

    • Author(s)
      岩切宏友
    • Organizer
      プラズマ・核融合学会年会
    • Place of Presentation
      京都府京都市国際交流会館
    • Year and Date
      2009-12-04
    • Related Report
      2009 Annual Research Report
  • [Presentation] 核融合炉材料照射下挙動のマルチスケールモデリング~制御イオン照射実験2009

    • Author(s)
      岩切宏友
    • Organizer
      プラズマ・核融合学会年会
    • Place of Presentation
      京都市国際交流会館(京都府京都市)
    • Year and Date
      2009-12-03
    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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