Microstructural Evolution in Rapidly Quenched ZrO2-3mol% Y2O3 by Annealing
- 1 January 1986
- journal article
- Published by Ceramic Society of Japan in Journal of the Ceramic Association, Japan
- Vol. 94 (1092) , 887-890
- https://doi.org/10.2109/jcersj1950.94.1092_887
Abstract
ZrO2-3mol% Y2O3 was rapidly quenched from melts, and annealed at 1700°C for 48h in air. X-ray diffraction analysis and TEM observation revealed that the tetragonal phase in as-quenched samples was nontransformable and the phase in annealed samples was transformable under external streesses. The tetragonal phase in as-quenched samples was formed by diffusionless transformation of the cubic phase. Upon annealing, the microstructures did not change discontinuously, but the tetragonal twins coarsened.Keywords
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