Heat conductions due to electrons and phonons for titanium hydride and deuteride

B. Tsuchiya, S. Nagata, Tatsuo Shikama, K. Konashi, M. Yamawaki

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

Thermal conductivities of titanium hydride and deuteride (TiHx and TiDx: 1.64≤x≤1.98) in the temperature range from room temperature to 570 K have been calculated from the relation of thermal diffusivities, which are measured by means of a laser flash method, the literature data of their densities and specific heats. The calculation results showed that the thermal conductivities of TiHx and TiDx increased with increasing temperature and composition and were higher than that of Ti. On the basis of Wiedemann-Franz rule, the heat conductions due to electrons and phonons have been estimated from the temperature and composition dependences of the thermal and electrical conductivities measured using a four-contact DC method. Both phonons and electrons play an important role in the thermal conductivities of TiHx and TiDx at 570 K.

Original languageEnglish
Pages (from-to)223-226
Number of pages4
JournalJournal of Alloys and Compounds
Volume356-357
DOIs
Publication statusPublished - 2003 Aug 11
EventProceedings of the Eight International Symposium on Metal Hyd (MH 2002) - Annecy, France
Duration: 2002 Sep 22002 Sep 6

Keywords

  • Electrical conductivity
  • Electrical resistivity
  • Isotope effect
  • Thermal conductivity
  • Thermal diffusivity
  • Titanium hydride and deuteride

ASJC Scopus subject areas

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

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