ZrO_2/CePO_4可加工陶瓷的性能与压痕裂纹形貌  

Mechanical Properties and Morphology of Indentation Crack of Machinable Ce-ZrO_2/CePO_4 Ceramic

作　　者：葛志平[1] 赵玉红 邱世鹏[1] 李益欢[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《中国稀土学报》2003年第z1期90-93,共4页Journal of the Chinese Society of Rare Earths

摘　　要：研究了CePO4加入量对ZrO2/CePO4陶瓷材料的力学性能和压痕裂纹形貌的影响。结果表明,在ZrO2组成中加入适量的CePO4可形成强弱界面相互分布的网络结构,在弱界面处裂纹可发生偏转、分支、桥联等形式,从而在保证该材料具有可加工性的同时仍可维持较高的力学性能。The effect of doping content of CePO_4 on mechanical properties and morphology of indentation crack of Ce-ZrO_2/CePO_4 ceramic was investigated. The result indicates that network structure of intercalated distributional strong-weak interface forms at suitable doping content in Ce-ZrO_2 composites. Deflection, branching and bridging of cracks occur in weak interface of two phases, which assures machinability of the ceramic and maintains higher mechanical properties.

关 键 词：氧化锆 压痕裂纹 弱界面 可加工性 

分 类 号：TQ174[化学工程—陶瓷工业]