SEMINAR
The Key Lab of Inorganic Functional Materials and Devices
Shanghai Institute of Ceramics, Chinese Academy of Sciences
中国科学院上海硅酸盐研究所无机功能材料与器件重点实验室

New-Generation PZN-PT Single Crystal Underwater Transducers

Speaker

Dr. Lim Leong Chew

National University of Singapore / Microfine Materials Technologies Pte Ltd., Singapore

时间：5月24日（星期二）上午9:50

地点：4号楼14楼第二会议室

联系人罗豪甦

Abstract 

New-Generation PZN-PT Single Crystal Underwater Transducers

Lim Leong Chew
National University of Singapore / Microfine Materials Technologies Pte Ltd., Singapore

Both [100]L(A)×[011]T(P) and [110]L(A)×[001]T(P) transverse-mode PZN-(5-7)%PT single crystals, where superscripts (A) and (P) denote the active and poling direction respectively, exhibit much superior dielectric and piezoelectric properties to those of state-of-the-art PZT ceramics. They have been successfully utilized to design and fabricate a range of new-generation piezoelectric devices for demanding applications, notably compact low-frequency broadband underwater projectors suitable for UUV platform and accelerometers of ultra-high sensitivity and dynamic range. This presentation describes the properties of these useful crystal cuts and the measured performance of the said piezoelectric devices made from them.