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.

引用

页数：4

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