摘要
研究了TiO2含量对ZTA陶瓷烧结力学性能以及显微结构的影响。研究从1550℃到1625℃烧结了TiO2含量不同的ZTA粉体。结果发现TiO2的加入能明显促进ZTA的烧结致密化,适量的TiO2可以加速晶界移动,降低晶粒尺寸,在1600℃以下可以获得综合力学性能良好的ZTA陶瓷;过量TiO2会引起晶粒异常长大,甚至过烧。
The effect of TiO2 as additive on ZTA has been investigated in this paper.In this research,we sintered ZTA with different content of TiO2 from 1550 ℃ to 1625 ℃.The results demonstrate that the TiO2 can significantly promote ZTA powder sintering.When the TiO2 is added at a proper quantity,the movement of grain boundary can be accelerated and the grain size of the crystal will be smaller.ZTA ceramic with good mechanical performance can obtained under 1600 ℃.The excess of TiO2 will cause secondary grain grouth,even over-sintering.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2011年第1期191-194,199,共5页
Bulletin of the Chinese Ceramic Society
