Properties of Composite Piezoelectric Materials for Ultrasonic Transducers

W. A. Smith, A. A. Shaulov, B. M. Singer

Research output: Contribution to journalConference articlepeer-review

33 Scopus citations

Abstract

A new spectrum of electromechanical properties are realized with composite materials made by combining a piezoelectric ceramic and a passive epoxy. we have studied disks of rod composites in which the epoxy resin holds together parallel thin rods of piezoelectric ceramic oriented perpendicular to the faces. If the lateral spatial periodicity of the structure is smaller than all the relevant acoustic wavelengths, these composites behave as a homogeneous piezoelectric with new "effective' material parameters. For ultrasonic transducer applications we can engineer the structure to make materials whose electromechanical coupling is higher and acoustic impedance is lower than those of conventional piezoelectric ceramics.

Original languageEnglish
Article number1535295
Pages (from-to)539-544
Number of pages6
JournalProceedings - IEEE Ultrasonics Symposium
Volume1984-November
DOIs
StatePublished - 1984
Externally publishedYes
Event1984 IEEE Ultrasonics Symposium, IUS 1984 - Dallas, United States
Duration: 14 Nov 198416 Nov 1984

Bibliographical note

Publisher Copyright:
© 1984 IEEE.

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