摘要
系统研究了ＭｇＯＣｅＯ２烧结助剂对常压烧结氮化硅陶瓷致密化过程及其性能的影响，发现ＭｇＯＣｅＯ２是一种非常有效的烧结助剂，其致密化效果比单独用ＭｇＯ或ＣｅＯ２要好得多，常压烧结的Ｓｉ３Ｎ４ＭｇＯＣｅＯ２陶瓷，相对密度为９８．５％，室温强度可达９４８ＭＰａ。
An investigation of the pressureless sintering of Si 3N 4 with MgO CeO 2 revealed that MgO CeO 2 is a much more effective sintering aid for silicon nitride than either MgO or CeO 2. The amount of MgO CeO 2 and MgO/CeO 2 mass ratio have strong influence on the densification behaviour and mechanical properties of the sintered materials. The silicon nitride pressurelessly sintered with MgO CeO 2 retains a relative density of 98.5% and a bending strength of 948 MPa.
出处
《中国有色金属学报》
EI
CAS
CSCD
1996年第3期91-95,共5页
The Chinese Journal of Nonferrous Metals
