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DEVELOPMENT OF ACTINIDE-HYDRIDE FUEL

Research Project

Project/Area Number 11680510
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear engineering
Research InstitutionTohoku University

Principal Investigator

KONASHI Kenji  INSTITUTE FOR MATERIALS RESEARCH, Tohoku University, ASSOCIATE PROFESSOR, 金属材料研究所, 助教授 (10250812)

Co-Investigator(Kenkyū-buntansha) TSUCHIYA Bun  INSTITUTE FOR MATERIALS RESEARCH, Tohoku University, ASSISTANT, 金属材料研究所, 助手 (90302215)
YAMAMOTO Takuya  INSTITUTE FOR MATERIALS RESEARCH, Tohoku University, LECTURER, 金属材料研究所, 講師 (50212296)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2000: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1999: ¥2,700,000 (Direct Cost: ¥2,700,000)
KeywordsACTINIDE / HYDRIDE / TRANSMUTATION / NUCLEAR WASTES / NUCLEAR FUEL / NUCLEAR REACTOR
Research Abstract

Hydride fuels have been used in research reactors (e.g., TRIGA reactors) for many years. Recently, the transmutation method of nuclear wastes using actinide hydrides has been proposed. One of the most important R&D items to establish the idea is the development of actinide-hydrides target, which can be safely irradiated up to high burnups. In this study, the U-Th-Zr-H type target material was used, since the hydrogen chemical potential of the hydride is close to that of Np and Am hydrides. The U-Th-Zr-H pellet have been successfully fabricated without large crack by means of a Sieverts apparatus. The scanning electron microscope (SEM) and X-ray diffraction (XRD) analyses show that the hydride targets consist of actinide metal phase, actinide hydride phase and Zr hydride phase. Thermal conductivity data of actinide-hydrides targets are necessary for the design of the hydride fuel pin. The thermal diffusivity measurements of the U-Th-Zr-H type target material have been performed by means of a laser-flash method. The thermal conductivity was calculated from the relation of the measured thermal diffusivity, the literature data of the density, and the specific heat. The design correlation of the thermal conductivity has been developed as a function of temperature and hydrogen content.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] K.Konashi: "Transmutation of actinide nuclear wastes using a hydride fuel target"Trans.Am.Nuc.Soc.. 81. 124-125 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] B.Tsuchiya: "Thermal conductivity of U-ZrHx and U-Th-Zr-H"Trans.Am.Nuc.Soc.. 81. 125-126 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] B.Tsuchiya: "Thermal diffusivity measurement of uranium-thorium-zirconium hydride"J.Ally.Comp.. 312. 104-110 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.KONASHI: "TRANSMUTATION OF ACTINIDE NUCLEAR WASTES USING A HYDRIDE FUEL TARGET"TRANS.AM.NUC.SOc.. 81. 124-125 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] B.TSUCHIYA: "THERMAL CONDUCTIVITY OF U-ZrHx AND U-Th-Zr-H"TRANS.AM.NUC.SOc.. 81. 125-126 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] B.TSUCHIYA: "THERMAL DIFFUSIVITY MEASUREMENT OF URANIUM-THORIUM-ZIRCONIUM HYDRIDE"J.ALLY.COMP.. 312. 104-110 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Konashi: "Transmutation of actinide nuclear wastes using a hydride fuel target"Trans.Am.Nuc.Soc.. 81. 124-125 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] B.Tsuchiya: "Thermal conductivity of U-ZrHx and U-Th-Zr-H"Trans.Am.Nuc.Soc.. 81. 125-126 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] B.Tsuchiya: "Thermal diffusivity measurement of uranium-thorium-zirconium hydride"J.Ally.Comp.. 312. 104-110 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Konashi: "Transmutation of actinide nuclear wastes using a hydride fuel target"Trans. Am. Nuc. Soc.. 81. 124-125 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] B.Tsuchiya: "Thermal conductivity of U-ZrHx and U-Th-Zr-H"Trans. Am. Nuc. Soc.. 81. 125-126 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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