Flexural vibration of a lithium niobate piezoelectric plate with a ferroelectric inversion layer

Two-dimensional equations for flexural motions of a lithium niobate piezoelectric plate are derived from three-dimensional equations. The plate has a ferroelectric inversion layer where the piezoelectric constants reverse signs. The equations show an unconventional behavior that a uniform electric f...

Full description

Saved in:
Bibliographic Details
Published inMechanics of advanced materials and structures Vol. 27; no. 10; pp. 831 - 839
Main Authors Huang, Dejin, Yang, Jiashi
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 15.05.2020
Taylor & Francis Ltd
Subjects
Bending machines
Electric fields
Energy harvesting
Ferroelectric materials
Ferroelectricity
Flexure
Lithium niobates
Mathematical analysis
piezoelectric
Piezoelectricity
plate
Plates
vibration
wave
Online AccessGet full text

Cover

More Information
Summary:Two-dimensional equations for flexural motions of a lithium niobate piezoelectric plate are derived from three-dimensional equations. The plate has a ferroelectric inversion layer where the piezoelectric constants reverse signs. The equations show an unconventional behavior that a uniform electric field along the plate thickness can produce bending. This offers many possibilities for new designs of devices. Waves in unbounded plates are examined for the accuracy of the equations. A piezoelectric energy harvester based on such a plate is analyzed as an example of the application of the equations derived in vibrations of finite plates.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2018.1500664