Thermal diffusivity and electrical resistivity of zirconium hydride

B. Tsuchiya, M. Teshigawara, Kenji Konashi, M. Yamawaki

Research output: Contribution to journalConference articlepeer-review

16 Citations (Scopus)

Abstract

Thermal diffusivity of ε-phase zirconium hydride (ε-ZrHx: x = 1.74-1.99) has been measured within the temperature range from room temperature to 600 K. The thermal conductivity of ε-ZrHx has also been derived from the present experimental data of the thermal diffusivity and the literature data of the specific heat and the density. The electrical resistivity has also been measured to understand the temperature dependence of the thermal conductivity. The comparison between temperature dependencies of thermal conductivity and the electrical conductivity shows that the electronic heat conduction is the dominant process in ε-ZrHx. Moreover, it is confirmed that the Lorenz number of ε-ZrH1.94 for the Wiedemann-Franz rule is 4.0 × 10-2 μΩ W/K2 in the temperature range of 500-600 K and close to that of Zr metal.

Original languageEnglish
Pages (from-to)357-360
Number of pages4
JournalJournal of Alloys and Compounds
Volume330-332
DOIs
Publication statusPublished - 2002 Jan 17
EventProceedings of the International Symposium on Metal-Hydrogen (MH 2000) - Noosa Heads, QLD, Australia
Duration: 2000 Oct 12000 Oct 6

Keywords

  • Electrical conductivity
  • Electrical resistivity
  • Lorenz number
  • Thermal conductivity
  • Thermal diffusivity
  • ε-phase zirconium hydride

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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