(1-x)PST-xPZT弛豫铁电陶瓷的介电与压电性能研究  

Dielectric and Piezoelectric Properties of (1-x)PST-xPZT Relaxor Ferroelectric Ceramics

作　　者：覃宝全[1] 蓝德均[1] 乐夕[1] 肖定全[1] 朱建国[1] 

机构地区：[1]四川大学材料科学与工程学院,成都610064

出　　处：《四川大学学报（自然科学版）》2005年第S1期403-406,共4页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金(60471044);教育部博士点基金(20020610014)

摘　　要：以普通氧化物烧结方法(一步法)和先驱体法(两步法),在1200℃～1350℃的温度下,制备了(1-x)Pb(Sc0.5Ta0.5)O3-xPb(Zr0.52Ti0.48)O3(以下简称PSTZT)弛豫铁电陶瓷.实验发现在所有掺杂成分中,各种烧结温度都得到了钙钛矿含量很高(几乎100%)的PSTZT陶瓷样品.SEM分析表明,PSTZT陶瓷晶体颗粒饱满、晶界明显,形状比较有规则;从介电性能和压电性能分析可以看出,两种工艺制备的PSTZT陶瓷样品的电学性能没有明显的区别.The relaxor ferroelectric ceramics, (1-x)Pb(Sc_ 0.5 Ta_ 0.5 )O_3-xPb(Zr_ 0.52 Ti_ 0.48 )O_3 (abbr. PSTZT), were prepared by using the conventional oxide method and precursor method sintered at 1200℃ to 1350℃. The experimental results showed that high percent (almost 100%) of the perovskite structure of PSTZT ceramics were obtained for all the doped samples. The SEM observation showed that the crystalline grains of the PSTZT ceramics were well-stacked and the grain boundaries were well clear. From the analys...

关 键 词：PSTZT 弛豫铁电陶瓷 钙钛矿相 

分 类 号：TB34[一般工业技术—材料科学与工程]