Effect of TiN and Al2O3 on the Low Temperature Degradation of 3Y-TZP
The composite materials, 3Y-TZP added with TiN or/and Al2O3 particles, were fabricated by hot-pressing techniques. The effect of TiN and Al2O3 on the low temperature degradation of 3Y-TZP was investigated. It is shown that both TiN and Al2O3 can inhibit t-m transformation of 3Y-TZP and prevent the transformation from propagating into the specimen interiors when aged at a low temperature. The inhibition to the low temperature degradation of 3Y-TZP by Al2O3 is more sensitive to the aged temperature than by TiN. Compared with Al2O3, TiN is more available to inhibit t-m transformation on aged surfaces. The degradation resistance of 3Y-TZP codoped by TiN and Al2O3 is stronger than that of 3Y-TZP dispersed only by TiN or Al2O3.
Chengyu Jiang, Geng Liu, Dinghua Zhang and Xipeng Xu
J. Sun et al., "Effect of TiN and Al2O3 on the Low Temperature Degradation of 3Y-TZP", Materials Science Forum, Vols. 532-533, pp. 281-284, 2006