Pechini方法制备纳米级Pb_(1-x)Ca_xZrO_3陶瓷  

Nanometer-sized Pb_(1-x)Ca_xZrO_3 Ceramics Prepared by Pechini Method

作　　者：熊学斌[1] 肖定全[1] 陈强[1] 袁小武[1] 于光龙[1] 方喻[1] 朱建国[1] 

机构地区：[1]四川大学材料科学系,四川成都610064

出　　处：《电子元件与材料》2004年第1期3-6,共4页Electronic Components And Materials

基　　金：四川省应用基础研究项目(D301GY051-48)

摘　　要：采用Pechini方法制备了PCZ(x)纳米粉体,并用PCZ(x)纳米粉体制备了PCZ(x)陶瓷。用激光粒度分析仪分析了PCZ(x)纳米粉体的平均粒径。利用XRD、LCR测试仪、SEM等分析手段表征了PCZ(x)陶瓷的结构及介电性能。结果表明用PCZ(x)纳米粉体在1 250℃下烧结的配方为Pb0.65Ca0.35ZrO3的陶瓷具有最高的钙钛矿相含量以及最大的介电常数。PCZ(x)陶瓷晶粒细小,晶界完整。PCZ(x) ceramics were prepared with nanometer-sized PCZ(x) powder prepared by Pechini method. The average particle size of PCZ(x) powders were measured by a laser granularity meter, The structure and dielectric properties of PCZ(x) ceramics were investigated by XRD, LCR and SEM. The test results show that Pb0.65Ca0.35ZrO3 ceramics sintered at 1250℃ have the highest percent of the perovskite phase and the largest dielectric constant. The crystalline grain size of PCZ(x) ceramics is fine and the grain boundary is of integrity.

关 键 词：纳米陶瓷 PCZ 反铁电体 Pechini方法 

分 类 号：TM223.3[一般工业技术—材料科学与工程] TQ174.756[电气工程—电工理论与新技术]