无机材料学报2000，Vol.15Issue(5)：815-821,7.
Na1/2Bi1/2TiO3-BaTiO3系陶瓷压电性?及弛豫相变研究
Piezoelectric Property and Relaxation Phase Transition of Na1/2Bi1/2TiO3-BaTiO3 System
初宝进 1李国荣 1江向平 1陈大任1
作者信息
- 1. 中国科学院上海硅酸盐研究所无机功能材料开放实验室，上海 200050
- 折叠
摘要
Abstract
For (1-x)Na1/2Bi1/2TiO3-BaTiO3(x=0.02, 0.04, 0.06, 0.08, 0.10) lead-free ceramic system the morphotropic boundary, piezoelectric property, relaxation property and phase transition were investigated. The piezoelectric ceramics ofthis system possess large ratios of Kt/Kp and high frequency constants. According to XRD patterns, the morphotropic boundary lies in the composition range of 0.04<x<0.06. The main physical properties of this system can reach extreme values near the morphotropic boundary. The relaxation property of this system was studied by using dielectric constant-temperature curves and thermally stimulated depolarization current (TSDC) curves. Phase transition from ferroelectric to paraelectric phase was also primarily discussed and it was found out that the ceramics within a composition range possess transitional phase region between ferroelectric phase and paraelectric phase.关键词
(1-x)Na1/2Bi1/2TiO3-xBaTiO3/无铅压电陶瓷/准同型相界/弛豫性相变/过渡相区Key words
(1-x)Na1/2Bi1/2TiO3-xBaTiO3/lead-free piezoelectric ceramics/morphotropic boundary/relaxation phase transition/transitional phase region分类
通用工业技术引用本文复制引用
初宝进,李国荣,江向平,陈大任..Na1/2Bi1/2TiO3-BaTiO3系陶瓷压电性?及弛豫相变研究[J].无机材料学报,2000,15(5):815-821,7.
