Electric properties and phase transition behavior in lead lanthanum zirconate stannate titanate ceramics with low zirconate content  

作　　者：曾涛 漏琦伟 陈学锋 张红玲 董显林 王根水 

机构地区：[1]Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power,Shanghai University of Electric Power [2]Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics,Chinese Academy of Sciences [3]National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2015年第11期497-501,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51202273,11204304,and 11304334);the Science and Technology Commission of Shanghai Municipality,China(Grant No.14DZ2261000)

摘　　要：The phase transitions, dielectric properties, and polarization versus electric field （P-E） hysteresis loops of Pbo.97Lao.02（Zr0.42Sn0.58-xTix）O3 （0.13≤ x ≤0.18） （PLZST） bulk ceramics were systematically investigated. This study exhibited a sequence of phase transitions by analyzing the change of the P-E hysteresis loops with increasing temperature. The anfiferroelectric （AFE） to ferroelectric （FE） phase boundary of PLZST with the Zr content of 0.42 was found to locate at the Ti content between 0.14 and 0.15. This work is aimed to improve the ternary phase diagram of lanthanum-doped PZST with the Zr content of 0.42 and will be a good reference for seeking high energy storage density in the PLZST system with low-Zr content.The phase transitions, dielectric properties, and polarization versus electric field （P-E） hysteresis loops of Pbo.97Lao.02（Zr0.42Sn0.58-xTix）O3 （0.13≤ x ≤0.18） （PLZST） bulk ceramics were systematically investigated. This study exhibited a sequence of phase transitions by analyzing the change of the P-E hysteresis loops with increasing temperature. The anfiferroelectric （AFE） to ferroelectric （FE） phase boundary of PLZST with the Zr content of 0.42 was found to locate at the Ti content between 0.14 and 0.15. This work is aimed to improve the ternary phase diagram of lanthanum-doped PZST with the Zr content of 0.42 and will be a good reference for seeking high energy storage density in the PLZST system with low-Zr content.

关 键 词：PLZST ceramics FERROELECTRICITY ANTIFERROELECTRICITY phase transition 

分 类 号：O469[理学—凝聚态物理]