摘要
研究了常压烧结Y_2O_3-ZrO_2陶瓷不同冷却方式对其力学性能及t—m相变的影响。试验结果表明;冷却方式不同可以使材料中t-ZrO_2相含量不同,这与t—m相变的成核有关,成核过程是温度和时间的函数。随冷却速度增大,相变开始点温度(M_s)降低,相变终了点温度(M_f)则不受冷却速度的影响。
Effect of four different cooling modes on t—m transformation and mechanical properties of Y_2O_3-ZrO_2 ceramics were studied. Experimental results show that t-ZrO_2 phase content changes due to different cooling modes in the test, which relates to the nucleation in t—m transformation. Nucleation process is a function of temperature and time. Initial temperature (M_s) of transformation decreases with the increase of cooling rate, and the final temperature (M_f) of transformation does not change with cooling rate.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1990年第4期336-341,共6页
Journal of The Chinese Ceramic Society
关键词
氧化物陶瓷
相变
钇
锆
力学性能
t—m transformation
nucleation process
t-ZrO_2 phase
