Lattice-dynamical study of the cubic-tetragonal-monoclinic transformations of zirconia
- 1 January 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 55 (1) , 19-22
- https://doi.org/10.1103/physrevb.55.19
Abstract
Vibrational and elastic properties of cubic and tetragonal phases of zirconia are discussed within the framework of quantitative lattice-dynamical treatments. The results reveal mechanical instabilities of both phases originating from the stresses inherent for these structures, and show that c-t and t-m transformations of are driven by successive condensations of the zone-boundary modes whose softening is induced by the interatomic tensions.
Keywords
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