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Embrittlement and the bistable crystal structure of zirconium hydride

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)2233-2236
Number of pages4
JournalPhysical Review Letters
Volume80
Issue number10
DOIs
Publication statusPublished - 9 Mar 1998

Abstract

The stability of the epsilon phase of zirconium hydride is studied using the pseudopotential plane wave method. The fluorite structure is mechanically unstable with respect to a tetragonal distortion. However, the minimum corresponding to c > a is almost degenerate in energy with that for c <a. The distortion explains the uniaxial misfit strain responsible for delayed hydride cracking in zirconium alloys.

    Research areas

  • PSEUDOPOTENTIALS, GROWTH, ALLOYS, STATE, GAS

ID: 11410074