The investigation of electrical properties and microstructure of ZnO-doped Ba_(0.9)Sr_(0.1)TiO_(3)ceramics  

作　　者：Gang Liu Wentao Jiang Jingyong Jiao Li Liu Ziyang Wang Jing Cai Wenting Luo Chunlin Song 

机构地区：[1]Faculty of Materials and Energy,Southwest University,Chongqing 400715,P.R.China [2]Hanhong College,Southwest University,Chongqing 400715,P.R.China [3]Communications Satellite Division of China Academy of Space Technology Beijing 100094,P.R.China

出　　处：《Journal of Advanced Dielectrics》2017年第1期45-51,共7页先进电介质学报（英文）

基　　金：The work is supported by"Fundamental Research Funds for the Central Universities"(XDJK2016E010,XDJK2015C001 and SWU113054).

摘　　要：Ba_(0.9)Sr_(0.1)TiO_(3) ceramics with or without ZnO have been prepared by traditional solid state reaction method.The XRD analysis showed that the doped Zn^(2+) ions diffused into the BST crystal lattice,resulting in the variation of dielectric properties.Especially the dielectric constant at Curie point decreased with doping ZnO content when it is lower than 0.5 mol%.Due to the promotion of sintering,doping ZnO can enhance the density of ceramics but increase grain size.However,ZnO is a kind of semiconductor and can lead to the decrease in electrical breakdown strength value.

关 键 词：BST ceramics ZnO doped dielectric properties 

分 类 号：TQ1[化学工程]