摘要
从点缺陷效应角度综述了无铅压铁电陶瓷(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)的结构和电学性能研究进展,分析了(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)陶瓷中点缺陷的类型和存在方式,给出了描述陶瓷点缺陷的相关手段,重点讨论了3种引入点缺陷的手段:离子非计量比、离子掺杂、生长工艺,分析三者对(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)陶瓷的结构和电学性能的影响;给出了离子非计量比、离子掺杂、生长工艺引起(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)陶瓷中点缺陷的种类与浓度差异,以及其所对应的陶瓷结构和电学性能特征,为从点缺陷效应角度设计和调控功能陶瓷的结构和电学性能提供借鉴与参考。
As one of lead-free piezoelectric and ferroelectric ceramics,structure and electrical properties of(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)ceramics have been widely studied.Effects of point defects in(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)ceramics,are summarized in this work.The contents include introduction of crystallite structure and electrical properties of(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)ceramics,point defects in(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3),reported methods for characterizing point defects,effects of ion nonstoichiometry,ion doping,technology parameters on structure and electrical properties of(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)ceramics.Ion nonstoichiometry,ion doping,and technology parameters can cause changes in type and concentration of point defects,which will affect structure and electrical properties of(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)ceramics.Based on the overview about point defect effects of structrue and electrical properties of(Na_(0.5)Bi_(0.5))_(0.94)Ba_(0.06)TiO_(3)ceramics,it is hoped to provide reference for the design and control structrue and electrical properties of functional ceramics via the point defect effects.
作者
陈晓明
刘丽娜
王星星
刘美丹
CHEN Xiaoming;LIU Lina;WANG Xingxing;LIU Meidan(School of Physics and Information Technology,Shaanxi Normal University,Xi′an 710119,Shaanxi,China)
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第4期1-29,F0002,共30页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金(51972202)
中央高校基本科研业务费专项资金(GK201901005,2020TS027)。
