Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498464 | Scripta Materialia | 2014 | 4 Pages |
Abstract
The morphology of domain structure in LaNbO4 added to YSZ-NiO composite was examined using a focused ion beam prepared specimen in a transmission electron microscope with a straining stage. It is confirmed for the first time that the morphology is changed under load through domain boundary movement. The driving force for this domain switch is the difference in Gibbs free energy between domains with different crystallographic orientations. This domain switch improves toughness by dissipating stress build-up at the crack tips.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Ben Ma, Bo Chi, Jian Pu, Jian Li,