Thermal and mechanical properties of hydrides of Zr-Hf alloys

Daichi Araki, Ken Kurosaki, Hiroaki Kimura, Hiroaki Muta, Yuji Ohishi, Kenji Konashi, Shinsuke Yamanaka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Polycrystalline bulk samples of δ-phase Hf hydrides with various Zr contents were prepared and their high-temperature stability and thermal and mechanical properties were investigated. The phase structure was examined between room temperature and 973 K using high-temperature X-ray diffraction and thermogravimetric-differential thermal analysis. From room temperature to 673 K, the coefficient of linear thermal expansion, specific heat capacity, and thermal conductivity were evaluated. The Vickers hardness and sound velocity were measured at room temperature, and the elastic modulus was evaluated. The effect of the Zr content on the high-temperature stability and the thermal and mechanical properties of Hf hydrides was studied.

Original languageEnglish
Pages (from-to)162-170
Number of pages9
Journaljournal of nuclear science and technology
Volume52
Issue number2
DOIs
Publication statusPublished - 2015 Feb 1

Keywords

  • hafnium hydrides
  • high-temperature stability
  • mechanical properties
  • thermal properties
  • zirconium

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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