Substitution of Pb with (Li_(1/2)Bi_(1/2)) in PbZrO_(3)-based antiferroelectric ceramics  

作　　者：Binzhi Liu Anand P.S.Gaur Jun Cui Xiaoli Tan 

机构地区：[1]Department of Materials Science and Engineering Iowa State University,Ames,IA 50011,USA

出　　处：《Journal of Advanced Dielectrics》2024年第1期74-81,共8页先进电介质学报（英文）

基　　金：supported by the U.S.Department of Energy’s Office of Energy Efficiency and Renewable Energy(EERE)under the Advanced Manufacturing Office(AMO)Award Number DEEE0009105.

摘　　要：PbZrO_(3)-based antiferroelectric(AFE)ceramics are promising dielectrics for high-energy-density capacitors due to their reversible phase transitions during charge-discharge cycles.In this work,a new composition series,[Pb_(0.93-x)La_(0.02)(Li_(1/2)Bi_(1/2))_(x)Sr_(0.04)][Zr_(0.57)Sn_(0.34)Ti_(0.09)]O_(3),with Li^(+)and Bi^(3+)substitution of Pb^(2+)at x=0,0.04,0.08,0.12,0.16 is investigated for the microstructure evolution,ferroelectric(FE)and dielectric properties.It is found that Li^(+) and Bi^(3+) substitution can significantly reduce the sintering temperature and simultaneously enhance the dielectric breakdown strength.An ultrahigh energy efficiency(94.0%)and a large energy density(3.22 J/cm^(3))are achieved in the composition of x=0.12 with a low sintering temperature(1075℃).

关 键 词：PbZrO_(3)-based antiferroelectrics LiþBi substitution energy storage energy efficiency 

分 类 号：TQ174.1[化学工程—陶瓷工业]