Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1475773 | Journal of the European Ceramic Society | 2013 | 7 Pages |
Abstract
We report in-situ optical observations of the ferroelastic switching in a barium titanate single crystal under compressive stress. Optical micrographs were captured in two regions showing distinct arrangements of domains. Coarsely spaced needle domains in a matrix consisting of a differently oriented large single domain were found to retreat under the application of compressive stress of around 1–2 MPa. However, a comb of closely spaced needle domains was found to be more stable, retreating only slightly under a similar magnitude of applied load. The observations show that the pattern of needle domains influences the ferroelastic switching process and the observed coercive stress can depend strongly on domain arrangement.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Prashant Potnis, John Huber,