Effects of thermal and electrical histories on structure and dielectric behaviors of(Li_(0.5)Nd_(0.5))^(2+)-modified(Bi_(0.5)Na_(0.5))TiO_(3)-BaTiO_(3) ceramics

作     者：Jiwen Xu Qingning Li Ling Yang Weidong Zeng Changrong Zhou Changlai Yuan Guohua Chen Guanghui Rao 

作者机构：Guangxi Key Laboratory of Information MaterialsGuilin University of Electronic TechnologyGuilinGuangxi541004China 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2017年第3卷第2期

页      面：121-129页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Part of this work was financially supported by the National Nature Science Foundation of China(11564007,61561015,and 61361007) Guangxi Key Laboratory of Information Materials(1310001-Z) the Natural Science Foundation of Guangxi(2015GXNSFAA 139250) 

主　　题：Ceramics Dielectric properties Ferroelectricity Piezoelectricity 

摘      要：The effect of thermal and electrical histories on structure and dielectric behaviors is studied using 0.95(Bi_(0.5)Na_(0.5))_(0.97)(Li_(0.5)Nd_(0.5))_(0.03)TiO_(3)-0.05BaTiO_(3)(abbreviated as BNTLN0.03-BT5)ceramic as a selected *** structure change caused by annealing treatment,and pronounced phase transition and domain switching by electrical poling,are observed to occur,*** dielectric constant and its strong frequency dispersion in unpoled samples decrease evidently by electrical poling due to electric field-induced ordered *** high temperature Maxwell-Wagner relaxor behavior vanishes by annealing treatment due to the loss of electrical inhomogeneity with interface charging *** properties are improved evidently by annealing treatment at 900℃,implying a new appropriate method to improve piezoelectric properties.