Ferroelectric/Ferroelastic domain switching and its toughening effect in Bi4Ti3O12-based high-temperature piezoceramics

摘要：

INTRODUTION Bismuth layer structured ferroelectric Bi4Ti3O12(BIT) has been identified as a promising piezoelectric material for the high-temperature application due to its high Curie temperature and larger spontaneous polarization.However,in most piezoelectric sensors and actuators,ferroelectric materials are prone to fatigue due to cyclic electrical or mechanical loadings.The fatigue manifests its effect as a reduction in domain switching or domain wall movement and subsequent premature failure of devices.In this paper,a sort of Bi4Ti3O12-based piezoceramics were prepared by a traditional solid reaction process.The uniaxial compression test and Vicker indentation test were used for investigating the ferroelectric/ferroelastic domain switching and the corresponding toughening effect of ceramics.

作者: Yu Chen Shaoxiong Xie Qingyuan Wang Jianguo Zhu

作者单位: School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;College of Materials Scienc School of Architecture and Environment,Sichuan University,Chengdu 610065,China School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;School of Architecture and College of Materials Science and Engineering,Sichuan University,Chengdu 610065,China

会议类型: 国际会议

会议名称: InternationalConference on Structural Fatigue﹠FractureTheory﹠Experimental Technology (FFTE 2018)(结构疲劳与断裂理论和实验技术国际会议)

会议地点: 海口

会议语种:英文

页码: 147-148

在线出版日期: 2018-01-12（万方平台首次上网日期，不代表论文的发表时间）