等静压诱导的PbLa(Zr,Sn,Ti)O_3陶瓷铁电反铁电相变性能研究  

HYDROSTATIC PRESSURE-INDUCED FERROELECTRIC-ANTIFERROELECTRIC PHASE TRANSITION IN PbLa(Zr,Sn,Ti)O_3 CERAMICS

作　　者：徐卓[1] 冯玉军[1] 郑曙光[1] 金安[1] 王方林[1] 姚熹[1] 

机构地区：[1]西安交通大学电子陶瓷与器件教育部重点实验室,陕西西安710049

出　　处：《高压物理学报》2001年第2期122-126,共5页Chinese Journal of High Pressure Physics

摘　　要：研究了等静压诱导掺镧La的Pb(Zr,Sn ,Ti)O3(PLZST)陶瓷材料的铁电 反铁电相变和介电压谱 ,结果发现介电压谱具有明显的扩散相变和频率弥散的特点 ,这一现象有利于拓宽人们对压力诱导的多组元弛豫型铁电体的扩散相变行为的认识和理解。Hydrostatic pressure-induced ferroelectric-antiferroelectric phase transformation and dielectric properties in PbLa(Zr, Sn, Ti)O3 ceramics were investigated experimentally. Experimental results show that the dielectric properties of the samples versus hydrostatic pressure are distinguished with phase transition diffusion and frequency dispersion.

关 键 词：等静压 铁电-反铁电相变 介电压谱 弛豫行为 陶瓷材料 扩散相变 高功率换能器 

分 类 号：O521.21[理学—高压高温物理] TM28[理学—物理]