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Evaluation and improvement of properties of hydride shielding materials for a fusion reactor

Research Project

Project/Area Number 25289344
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institute for Fusion Science

Principal Investigator

Tanaka Teruya  核融合科学研究所, ヘリカル研究部, 准教授 (30353444)

Co-Investigator(Kenkyū-buntansha) SAGARA Akio  核融合科学研究所, ヘリカル研究部, 教授 (20187058)
HISHINUMA Yoshimitsu  核融合科学研究所, ヘリカル研究部, 准教授 (00322529)
KONDO Masatoshi  東京工業大学, 原子炉工学研究所, 助教 (70435519)
YOSHINO Masahito  名古屋大学, 工学研究科, 助教 (10397466)
SAKAUE Hiroyuki  核融合科学研究所, ヘリカル研究部, 助教 (40250112)
MUTA Hiroaki  大阪大学, 工学研究科, 助教 (60362670)
TAMURA Hitoshi  核融合科学研究所, ヘリカル研究部, 准教授 (20236756)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords水素化物 / 中性子遮蔽 / 粉末プレス / 重量密度 / 熱伝導 / ZrH2 / TiH2 / 中性子遮蔽材 / 水素脱離
Outline of Final Research Achievements

Test fabrication of hydride blocks using commercially available ZrH2 and TiH2 powders were performed by the cold isostatic press (CIP) process (typical dimensions: ~2.5x2.5x2.5cm3, 398MPa). The obtained densities were ~80% and 85% compared with the theoretical densities, respectively. The effective density of the hydride component increased to ~95 % by using a Cu-coated TiH2 powder and die pressing. This could be a potential method for the densification of the blocks. Thermal desorption spectroscopy (TDS) data of the hydride powders were obtained in high vacuum, Ar, He+H2 and air environment to investigate the hydrogen retention properties under accidental conditions. Effective positions of hydride blocks in a fusion reactor, form of use and atmosphere control were proposed based on the results. The hydrogen release temperature of the ZrH2 material was significantly decreased due to oxidation in air.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (10 results)

All 2016 2015 2014 2013

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Properties of Cold-Pressed Metal Hydride Materials for Neutron Shielding in a D–T Fusion Reactor2015

    • Author(s)
      Hiroaki MUTA, Teruya TANAKA, Yuji OHISHI, Ken KUROSAKI, Yoshimitsu HISHINUMA, Shinsuke YAMANAKA and Takeo MUROGA
    • Journal Title

      Plasma and Fusion Research

      Volume: 10 Issue: 0 Pages: 3405021-3405021

    • DOI

      10.1585/pfr.10.3405021

    • NAID

      130005302838

    • ISSN
      1880-6821
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Applicability of Hydride Materials for Radiation Sheilding in Helical Reactor FFHR-d12015

    • Author(s)
      Teruya Tanaka, Hiroaki Muta, Yoshimitsu Hishinuma,, Hitoshi Tamura, Takeo Muroga and Akio Sagara
    • Journal Title

      Fusion Science and Technology

      Volume: in press

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 核融合炉中性子遮蔽における水素化物材料の使用検討2016

    • Author(s)
      田中 照也、牟田 浩明、菱沼 良光、吉野 正人、室賀 健夫、相良 明男
    • Organizer
      日本原子力学会「2016年春の年会」
    • Place of Presentation
      東北大学、川内キャンパス
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] Fabrication and property investigation of metal hydride blocks for neutron shielding in a fusion reactor2015

    • Author(s)
      T. Tanaka, H. Muta, M. Yoshino, Y. Hishinuma, T. Muroga, A. Sagara
    • Organizer
      25th International TOKI Conference (ITC-25)
    • Place of Presentation
      セラトピア土岐、岐阜県土岐市
    • Year and Date
      2015-11-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improvement of weight density and thermal conductivity of hydride neutron shielding material using metal coated powder2015

    • Author(s)
      H. Muta, T. Tanaka, R. Nishikane, Y. Ohishi, K. Kurosaki, Y. Hishinuma, S. Yamanaka, T. Muroga
    • Organizer
      25th International TOKI Conference (ITC-25)
    • Place of Presentation
      セラトピア土岐、岐阜県土岐市
    • Year and Date
      2015-11-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Applicability Study of Hydride Materials for Radiation Shielding2014

    • Author(s)
      Teruya Tanaka, Hiroaki Muta, Yoshimitu Hishinuma, Hitoshi Tamura, Takeo Muroga, ,Akio Sagara
    • Organizer
      21st Topical Meeting on the Technology of Fusion Energy (TOFE)
    • Place of Presentation
      Anaheim, CA, USA
    • Year and Date
      2014-11-09 – 2014-11-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] Properties of cold-pressed metal hydride materials for neutron shielding in a DT fusion reactor2014

    • Author(s)
      Hiroaki MUTA, Teruya TANAKA, Yuji OHISHI, Ken KUROSAKI, Yoshimitsu HISHINUMA, Shinsuke YAMANAKA and Takeo MUROGA
    • Organizer
      24th International Toki Conference (ITC-24)
    • Place of Presentation
      セラトピア土岐、岐阜県土岐市
    • Year and Date
      2014-11-04 – 2014-11-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] FFHR-d1設計における水素化物中性子遮蔽材の適用検討2014

    • Author(s)
      田中照也、相良明男、室賀健夫、牟田浩明*、宮澤順一、田村仁、後藤拓也、FFHR設計グループ
    • Organizer
      第10回 核融合エネルギー連合講演会
    • Place of Presentation
      つくば国際会議場、茨城県つくば市
    • Year and Date
      2014-06-19 – 2014-06-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Neutronics and heat removal analyses of carbide and hydride neutron shield for fusion reactor2013

    • Author(s)
      T. Tanaka, A. Sagara, M. Kondo, Y. Hishinuma, T. Muroga
    • Organizer
      23rd International Toki Conference (ITC-23)
    • Place of Presentation
      Ceratopia Toki, Toki-city, Gifu, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] 核融合炉炭化物・水素化物中性子遮蔽体の核発熱および除熱解析2013

    • Author(s)
      田中照也、相良明男、近藤正聡、菱沼良光、室賀健夫
    • Organizer
      プラズマ・核融合学会 第30回年会
    • Place of Presentation
      東京工業大学 大岡山キャンパス
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-21   Modified: 2019-07-29  

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