Low‐Temperature Aging of t‐ZrO 2 Polycrystals with 3 mol% Y 2 O 3
Authors:
- 1 August 1987
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 70 (8) , 537-541
Abstract
A kinetic study of the aging behavior of tetragonal zirconia polycrystals (TZPs) from 100° to 500°C suggests that there exists a cricital grain size of 0.52 μm below which the tetragonal symmetry can be retained. Property degradation of TZPs at low temperatures is connected with transformation‐induced microcracking. It is reported here that the temperature range of 100° to 400°C in which degradation occurs could be explained by an infinite incubation time for the lower limit and by the martensite starting temperature for the upper limit.Keywords
This publication has 13 references indexed in Scilit:
- Degradation During Aging of Transformation‐Toughened ZrO2‐Y2O3 Materials at 250°CJournal of the American Ceramic Society, 1986
- Transformation of yttria partially stabilized zirconia by low temperature annealing in airJournal of Materials Science, 1985
- Crystalline Phase Change in Yttria‐Partially‐Stabilized Zirconia by Low‐Temperature AnnealingJournal of the American Ceramic Society, 1984
- Phase Relations in the System ZrO 2‐ Y 2 O 3 at Low Y 2 O 3 ContentsJournal of the American Ceramic Society, 1984
- REVIEW—Transformation Toughening in Ceramics: Martensitic Transformations in Crack‐Tip Stress FieldsJournal of the American Ceramic Society, 1980
- Phase Equilibria and Ordering in the System ZrO2‐Y2O3Journal of the American Ceramic Society, 1978
- Mechanisms of Toughening Partially Stabilized Zirconia (PSZ)Journal of the American Ceramic Society, 1977
- Phase relationships in the zirconia-yttria systemJournal of Materials Science, 1975
- Phase Analysis in Zirconia SystemsJournal of the American Ceramic Society, 1972
- Average Grain Size in Polycrystalline CeramicsJournal of the American Ceramic Society, 1969