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.
作者
刘林
LIU Lin(College of Applied Mathematics,Chengdu University of Information Technology,Chengdu 610225,China)
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)。
