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Proceedings Paper

Measurement of all the elastic, piezoelectric, and dielectric properties of PMN-PT single crystals
Author(s): Sang-Han Lee; Su-Sung Lee; Yongrae R. Roh; Ho-Yong Lee; Jin-Ho Han
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Paper Abstract

PMN-PT single crystals have rhombohedral 3m symmetry. In this paper, all the elastic, piezoelectric, and dielectric constants of the PMN-PT single crystals wre measured by the resonance method. For the rhombohedral symmetry, a total ot twelve independent material constants were measured such as six elastic compliance constants at constant electric field, two dielectric constants at constant stress, and four piezoelectric constants d. Seven sets of the crystal samples of each different geometry were prepared for the measurement of length-thickness extensional, thickness extensional, radial, length extensional and thickness shear modes of vibration, respectively. In order to check the validity of the measurement method, the same technique was applied to the characterization of common PZT ceramics. Experimental impedance spectrum of the PZT ceramics was compared with numerical impedance spectrum calculated with measured material constants. The good agreement between the two spectra confirmed validity of the characterization method in this paper.

Paper Details

Date Published: 13 August 2003
PDF: 8 pages
Proc. SPIE 5053, Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics, (13 August 2003);
Show Author Affiliations
Sang-Han Lee, Kyungpook National Univ. (South Korea)
Su-Sung Lee, Kyungpook National Univ. (South Korea)
Yongrae R. Roh, Kyungpook National Univ. (South Korea)
Ho-Yong Lee, Sun Moon Univ. (South Korea)
Jin-Ho Han, Prosonic Co., Ltd. (South Korea)

Published in SPIE Proceedings Vol. 5053:
Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics
Dimitris C. Lagoudas, Editor(s)

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