Thermophysical properties of zirconium hydride and uranium-zirconium hydride

B. Tsuchiya, J. Huang, K. Konashi, M. Teshigawara, M. Yamawaki

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Thermal diffusivities of ε-phase Zirconium hydrides (ZrH1.69-2.00) were measured in the temperature range from 300 to 600 K by means of a laser-flash method. The thermal diffusivity of ε-phase Zr hydrides increased with increasing hydrogen concentration and decreased with increasing temperature. The thermal diffusivities of ε-phase ZrHx with x > 1.83 were larger than that of α-phase Zr. The experimental data on the thermal diffusivity were expressed with the equations as a function of temperature and composition. Moreover, the thermal conductivities of ε-phase Zr hydrides were estimated from the measured data of the thermal diffusivity and the reported data of the density and specific heat. It was found that the ε-phase Zr hydrides were better thermal conductors than α-phase Zr and δ-phase Zr hydrides. The thermal diffusivity and conductivity of U-ZrHx were also estimated with the ones of ZrHx and U.

Original languageEnglish
Pages (from-to)329-333
Number of pages5
JournalJournal of Nuclear Materials
Issue number3
Publication statusPublished - 2001 Mar

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering


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