Paper
14 June 2000 Compression depolarization of PZT piezoelectric materials under high electromechanical driving levels
Ching-Yu Lin, Nesbitt W. Hagood
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Abstract
This paper examines the compressive depolarization of commercial lead zirconate titanate PZT-5A piezoelectric ceramics by evaluating the actuation strain at different electric fields, compressive stresses and stress durations. Varying the combination of these parameters allows further understanding of the coupling effects among them. The experimental results showed a remarkable difference between the under-load actuation and the residual actuation, determined at zero stress after exposure to compressive stress. Under-load actuation was reduced relatively low at high compressive stress either at low or high electric excitation levels and was found to be relatively independent of stress duration, while high electric drive residual actuation was found to be strongly dependent upon stress duration and maintained its initial actuation for short compression duration. The data also indicates that the compressive stress combined with high negative electric field can expedite the depolarization of material.
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Ching-Yu Lin and Nesbitt W. Hagood "Compression depolarization of PZT piezoelectric materials under high electromechanical driving levels", Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); https://doi.org/10.1117/12.388194
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CITATIONS
Cited by 6 scholarly publications.
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KEYWORDS
Ferroelectric materials

Electrodes

Ceramics

Chlorine

Silicon

Spherical lenses

Aluminum

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