(1-x)Pb(Sc_(0.5)Ta_(0.5))O_3-xPbTiO_3弛豫铁电陶瓷介电和压电性能的研究  

Investigation of Piezoelectric and Dielectric Properties of (1-x)Pb(Sc_(0.5)Ta_(0.5))O_3-xPbTiO_3 Relaxor Ferroelectric Ceramics

作　　者：石维[1] 陈林[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

出　　处：《四川大学学报（自然科学版）》2005年第S1期389-392,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：采用氧化物混合烧结法,在烧结温度为1250℃的条件下,制备了(1-x)Pb(Sc0.5Ta0.5)O3-xPbTi O3弛豫铁电陶瓷,并对其压电性能和介电性能进行了研究.发现在x=0.45时,(1-x)Pb(Sc0.5Ta0.5)O3-xPbTi O3弛豫铁电陶瓷体系具有较好的压电性能和介电性能,实验结果表明该体系的准同型相界应该在x=0.45附近.(1-x)Pb(Sc_ 0.5 Ta_ 0.5 )O_3-xPbTiO_3 relaxor ferroelectric ceramics were prepared by using conventional oxide powder processing sintered at 1250℃ The piezoelectric and dielectric properties of (1-x)Pb(Sc_ 0.5 Ta_ 0.5 )O_3-xPbTiO_3 relaxor ferroelectric ceramics were investigated. It was found that (1-x)Pb(Sc_ 0.5 Ta_ 0.5 )O_3-xPbTiO_3 relaxor ferroelectric ceramics system possess better piezoelectric and dielectric properties when x=0.45, the experimented results showed that morphotropic phase boundary (MP...

关 键 词：PST 弛豫铁电陶瓷 压电性能 

分 类 号：O482.4[理学—固体物理]