Propagation of thickness-twist waves through a joint between two semi-infinite piezoelectric plates

Author

Yang, Jiashi ; Chen, Ziguang ; Hu, Yuantai

Volume

54

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

888

Lastpage

891

Abstract

We study the propagation of thickness-twist waves through a joint between two semi-infinite piezoelectric plates of crystals with 6-mm symmetry or polarized ceramics. An exact solution from the three-dimensional equations of piezoelectricity is obtained. The solution shows the cutoff of certain waves and the presence of localized electromechanical fields near the joint. The results are of fundamental importance to the understanding and design of resonators and other devices made from plates of these materials, in particular thin film resonators of ZnO and AlN

Keywords

crystal symmetry; elastic waves; piezoelectric materials; piezoelectric thin films; plates (structures); vibrations; AlN; ZnO; crystals; joint; localized electromechanical fields; piezoelectricity; polarized ceramics; semiinfinite piezoelectric plates; thickness-twist waves; three-dimensional equations; Acoustic waves; Ceramics; Crystalline materials; Crystals; Laplace equations; Piezoelectric films; Piezoelectric materials; Piezoelectric polarization; Piezoelectricity; Zinc oxide;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2007.324

Filename

4154651