中南工业大学学报(自然科学版)2000，Vol.31Issue(4)：335-338,4.
YCe-TZP陶瓷的低温时效
Low-temperature aging of YCe-TZP ceramics
摘要
Abstract
Nanometer powders of 3Y-TZP, 3Y2Ce-TZP(3％ Y2O3-2％ CeO2-ZrO2), and 3Y4Ce-TZP(3％ Y2O3-4％CeO2-ZrO2) which were prepared by coprecipitation method were pressureless sintered at 1 450℃ for 2h. The emphasiswas on the studies of variations of bending strength and microstructure before and after aging in 250℃ water vapour for150 h. The results showed that when CeO2 content increased, bending strength of TZPs was found to decrease slowly,and 3Y4Ce-TZP showed no degradation. Combined with IR and EDAX techniques, aging degradation mechanism for 3Y-TZP was investigated. It was proved that CeO2 protecting layer formed during aging was useful to prevent Y-OH bond for-mation, so t→m aging phase transformation was also effectively prevented.关键词
3Y-TZP/YCe-TZP/低温时效/老化/相变Key words
3Y-TZP/YCe-TZP/low-temperature aging/degradation/phase transformation分类
化学化工引用本文复制引用
尹邦跃,王零森,林健凉,张金生,樊毅..YCe-TZP陶瓷的低温时效[J].中南工业大学学报(自然科学版),2000,31(4):335-338,4.基金项目
粉末冶金国家重点实验室基金资助项目(9706-36) （9706-36）
