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Fabrication and Characterization of Lithium Tantalate / PZT Composite Thick Film Ultrasonic Transducers

Published online by Cambridge University Press:  10 February 2011

Y. Chen ,
M. Sayer ,
L. Zou  and
C.-K. Jen
Y. Chen
Affiliation:
Department of Physics, Queen's University, Kingston, Ontario, CanadaK7L 3N6
M. Sayer
Affiliation:
Department of Physics, Queen's University, Kingston, Ontario, CanadaK7L 3N6
L. Zou
Affiliation:
Department of Physics, Queen's University, Kingston, Ontario, CanadaK7L 3N6
C.-K. Jen
Affiliation:
IMI, Nat'l Research Council, 75 Boul de Mortagne, Boucherville, Quebec, CanadaJ4B 6Y4
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Abstract

Lithium tantalate (LiTaO3)/PZT ceramic films with thickness above 50 µm have been deposited on stainless steel substrates using a modified sol-gel process. LT powders are dispersed in a PZT sol-gel matrix to form 0-3 ceramic/ceramic composites. The dielectric and impedance response of the LiTaO3/PZT films supported by the substrates has been studied. The pulse echo response of the films as ultrasonic transducers demonstrates a broadband frequency response. The transducers can operate at least up to a temperature of 368°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 541: Symposium O – Ferroelectric Thin Films VII , 1998 , 647
Copyright
Copyright © Materials Research Society 1999

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References

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