Studies of Radial and Thickness Acoustic Resonance Modes of a  Piezoceramic with Mixed Polarization Geometry

A. J. M. Sales; A. L. Magalhães; R. G. M. Oliveira; J. E. V. de Morais; M. A. S. Silva; D. X.  Gouveia; H. D. de Andrade; I. S. Queiroz Júnior; A. S. B. Sombra

doi:10.37256/fce.212021736

Authors

A. J. M. Sales Physics Department, Santiago University Campus, Aveiro University, Aveiro, Portugal
A. L. Magalhães Telecommunication and Materials Science and Engineering Laboratory, Physics Department, Federal University of Ceara, Fortaleza, Brazil
R. G. M. Oliveira Telecommunication and Materials Science and Engineering Laboratory, Physics Department, Federal University of Ceara, Fortaleza, Brazil
J. E. V. de Morais Telecommunication and Materials Science and Engineering Laboratory, Physics Department, Federal University of Ceara, Fortaleza, Brazil
M. A. S. Silva Telecommunication and Materials Science and Engineering Laboratory, Physics Department, Federal University of Ceara, Fortaleza, Brazil
D. X. Gouveia Federal Institute of Ceara, Campus Fortaleza, Fortaleza, Brazil
H. D. de Andrade Federal University of Semiarid Region, Federal University of the Semi-Arid Region, Mossoró, Brazil
I. S. Queiroz Júnior Federal University of Semiarid Region, Federal University of the Semi-Arid Region, Mossoró, Brazil
A. S. B. Sombra Telecommunication and Materials Science and Engineering Laboratory, Physics Department, Federal University of Ceara, Fortaleza, Brazil

DOI:

https://doi.org/10.37256/fce.212021736

Keywords:

PZT, piezoelectric materials, mixed polarization

Abstract

In this study, the Pb(Zr_0.65Ti_0.35)O₃ (PZT) structure was produced by the solid state reaction method, and a new polarization geometry was used to obtain the radial and thickness modes in cylindrical samples with more efficiency. The polarization procedure was investigated by varying the temperature from 30°C to 80°C. The experimental excitation of radial and thickness modes was observed, and a comparative study was performed with numerical simulations. The comparative analysis of the acoustic response of the cylindrical PZT samples under theoretical and experimental conditions was validated by COMSOL Multiphysics^® software. The new polarization geometry technique was used to generate radial thickness and acoustic mixed modes with more efficiency. The results show that the resonance frequency and antiresonance, as well as the impedance mode and phase angle are well adjusted, showing the validation of the technique presented between the theoretical and experimental measurements.

Studies of Radial and Thickness Acoustic Resonance Modes of a Piezoceramic with Mixed Polarization Geometry

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