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Proceedings Paper

Evolution of elastic, dielectric, and piezoelectric coefficients of PZT under electro-mechanical loading
Author(s): Q. D. Liu; J. E. Huber
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Paper Abstract

In this study, measurements of the evolving linear elastic, dielectric and piezoelectric moduli of a soft ferroelectric PZT are made during loadings of uniaxial compressive stress combined with an electric field. Using short pulses of electric field and stress, the incremental remanent strain and polarization state of the material and the unloading moduli were determined. The remanent quantities are treated as state variables, with a view to expressing the moduli as functions of the material state. The piezoelectric moduli vary approximately linearly with polarization, whilst the dielectric moduli and elastic compliances show more complex behaviour.

Paper Details

Date Published: 9 April 2007
PDF: 8 pages
Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 65260F (9 April 2007); doi: 10.1117/12.713606
Show Author Affiliations
Q. D. Liu, Univ. of Cambridge (United Kingdom)
J. E. Huber, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 6526:
Behavior and Mechanics of Multifunctional and Composite Materials 2007
Marcelo J. Dapino, Editor(s)

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