PMN—PT粉体的溶液化学法制备  

Preparation of PMN-PT Powders by the Solution Chemical Method

作　　者：王实现[1] 张约品[1] 王冲[1] 夏海平[1] 

机构地区：[1]宁波大学光电子功能材料实验室,浙江宁波315211

出　　处：《中国材料科技与设备》2011年第3期27-29,共3页Chinese Materials Science Technology & Equipment

基　　金：浙江省科技厅（2008C21069）;宁波自然科学基金（2009A610032）资助项目

摘　　要：采用溶液化学法合成了驰豫型复合钙钛矿结构铁电PMN—PT粉体。对合成过程中的组分、预烧工艺进行了研究。用XRD对合成材料物相进行了分析，研究了煅烧温度对焦绿石相产生的影响，用SEM观察了晶粒形貌特征。结果表明预烧温度为500℃，经1150℃煅烧获得的粉体钙钛矿相达到99．4％，颗粒分散性良好。The PMN-PT powders with complex perovskite structure were prepared by the solution chemical method, The processing conditions, the compositions and calcinations temperature were investigated. X-ray diffraction and scanning elec- tron microscopy were used to detect the perovskite phase evolution and the presence of the pyrochlore phase in PMN-PT. The formation of perovskite PMN-PT is a function of the calcination temperatures. The PMN-PT powders calcined at 1150℃ are almost entirely perovskite phase, and possess perfect dispersity.

关 键 词：PMN—PT 溶液化学法 钙钛矿相 

分 类 号：TQ174[化学工程—陶瓷工业]