摘要
通过四点弯曲试验方法，初步讨论了Ａｌ２Ｏ３和Ｓｉ３Ｎ４两种陶瓷材料高温下弯曲性能与温度的关系。试验发现，Ａｌ２Ｏ３材料在１０００℃以下，强度变化不明显，但随温度进一步升高，强度明显下降。Ｓｉ３Ｎ４材料在高温下具有明显的塑性变形能力。
In this paper, the flexural properties of ceramic materials (Al2O3 and Si3N4) at high temperatures were studied by the fourpoint bending method The auther investigated the relation between the flexural properties and temperatures for ceramic materials The experimental results show that the flexural strength is unchanged when temperature is less than 1000℃, but it sharply decreased with temperature rising above 1000℃Si3N4 has the bigger deformation ability at high temperatures
出处
《材料工程》
EI
CAS
CSCD
北大核心
1998年第4期30-31,共2页
Journal of Materials Engineering
