Giant Actuation Strain And Controllable Thermal Expansion Coefficient In PZT Ceramics Through Periodically Orthogonal Poling

摘要：

The widely used ferroelectric ceramics based actuators always suffer from small output strains(typically～0.1-0.15 ％) 1.Non-180 deg domain switching can generate large strain in ferroelectrics but it is usually irreversible.In this work,we tailored the domain structures in a soft lead titanate zirconate(PZT) ceramic by periodically orthogonal poling(POP).The non-180 deg switching in this POP PZT ceramics turns to be reversible,resulting in local giant actuation strain nearly 0.6％under a field of 2kV/mm at 0.1Hz.

关键词： Piezoelectric actuator Domain switching Multilayer actuator Lead free piezoelectric ceramic Controllable thermal expansion

作者: QIANGZHONG WANG FAXIN LI

作者单位: LTCS and College of Engineering,Peking University,Beijing 100871,China LTCS and College of Engineering,Peking University,Beijing 100871,China;Center for Applied Physics an

会议类型: 国际会议

会议名称: The 7th International Conference on Smart Materials and Nanotechnology in Engineering (第7届智能材料与纳米技术国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 1-2

在线出版日期: 2019-09-20（万方平台首次上网日期，不代表论文的发表时间）