High-order face-shear modes of relaxor-PbTiO3 crystals for piezoelectric motor applications

被引：23
作者：
Ci, Penghong [1 ]
Liu, Guoxi [1 ]
Chen, Zhijiang [1 ]
Zhang, Shujun [2 ]
Dong, Shuxiang [1 ]
机构：
[1] Peking Univ, Coll Engn, Beijing 100871, Peoples R China
[2] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 24期
基金：
中国国家自然科学基金;
关键词：
PT SINGLE-CRYSTAL; HIGH-FREQUENCY; PLATE; PB(MG1/3NB2/3)O-3-PBTIO3; BEHAVIOR;
D O I：
10.1063/1.4884652
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The face-shear vibration modes of [011] poled Zt +/- 45 degrees cut relaxor-PT crystals and their applications for linear piezoelectric motors were investigated. Unlike piezoelectric ceramics, the rotated crystal was found to exhibit asymmetric face-shear deformations, and its two high-order face-shear modes degraded into two non-isomorphic modes. As an application example, a standing wave ultrasonic linear motor (10 x 10 x 2 mm(3)) operating in high-order face-shear vibration modes was developed. The motor exhibits a large driving force (1.5 N) under a low driving voltage (22 V-pp). These findings could provide guidance for design of crystal resonance devices. (C) 2014 AIP Publishing LLC.
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页数：4
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