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.
Original language | English |
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Pages (from-to) | 2233-2236 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 80 |
Issue number | 10 |
DOIs | |
Publication status | Published - 9 Mar 1998 |
Keywords
- PSEUDOPOTENTIALS
- GROWTH
- ALLOYS
- STATE
- GAS