一类压电陶瓷的复阻抗谱分析  

Complex Impedance Spectrum Analysis for a Class of Piezoelectric Ceramics

作　　者：刘林 LIU Lin(College of Applied Mathematics,Chengdu University of Information Technology,Chengdu 610225,China)

机构地区：[1]成都信息工程大学应用数学学院,四川成都610225

出　　处：《成都信息工程大学学报》2020年第3期283-288,共6页Journal of Chengdu University of Information Technology

基　　金：四川省科学技术厅资助项目(2018ZR0287)。

摘　　要：采用传统固相法制备了(Na0.5Bi0.5)0.6(Bi1-ySry)04TiO3压电陶瓷(记为NBBST-y),利用复阻抗谱分析了电性能,探究了陶瓷中微观组成与电性能的关联.对于NBBST-y压电陶瓷,其晶粒电阻具有典型负温度系数的电阻-温度特性,根据Arrhenius Law拟合计算得到激活能0.574 eV <Ea<0.980 eV,表现为电子导电特征.(Na0.5 Bi0.5)0.6(Bi1-y Sry)0.4 TiO3(NBBST-y for short)piezoelectric ceramics were prepared by a traditional solid-state synthesis method,the electrical properties were analyzed through complex impedance spectroscopy,and the relationship between microscopic composition and electrical properties was investigated.For NBBST-y piezoelectric ceramics,resistance characteristic for grain shows a typical negative temperature coefficient of the resistance-temperature characteristics.The activation energy(0.574 eV<Ea<0.980 eV)for NBBST-y piezoelectric ceramics calculated according to the Arrhenius Law,it has the characteristic of electron conduction.

关 键 词：(Na0.5Bi0.5)TiO3压电陶瓷 Sr^2+ 复阻抗谱 

分 类 号：TM22[一般工业技术—材料科学与工程]