摘要
研究不同制作条件下Ｓｉ３Ｎ４陶瓷断口形貌与韧性的关系，当温度在１１６０～１３４０℃烧结时断口平面凹凸不平起伏很大，具有较好的韧性．当加入烧结助剂总量达质量百分数９％时，过多的烧结助剂会形成低熔点化合物存在于片层组织之间，降低了Ｓｉ３Ｎ４陶瓷的强度与韧性．
The relationship between appearance of fracture and toughness of sintering Si 3N 4 ceramic in different making conditions is studied.When the sintering temperature is at 1 160～1 220℃,the surface of fracture is not flat and appears rise and fall.So it has good toughness over 9% in quantity percent and the surplus flux would in to lowmelting point chemical compound existing between the piece structures.So that it reduces the intensity and toughness of Si 3N 4 ceramic.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
1998年第4期331-334,共4页
Journal of Guangxi University（Natural Science Edition）
基金
广西自然科学基金
关键词
超高压烧结
断口形貌
韧性
氮化硅陶瓷
烧结
superhigh pressure sinter
Si 3N 4 ceramic
appearance of fracture
toughness
