Effect of Sr Substitution on a Nonlinear Piezoelectric Coefficient of Third-Higher Term in Lead–Zirconate–Titanate-based Piezoelectric Ceramics
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概要
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Lead zirconate titanate (PZT) ceramics was changed to relaxor ferroelectrics by substitution of Sr for Pb. The temperature dependence of relative permittivity at about the Curie point showed that the ceramics changed to exhibit diffuse phase transition with an increase in Sr content. A nonlinear coefficient of the third-higher term was measured in these relaxor materials. The nonlinear coefficient of morphotropic phase boundary compositions decreased with an increase in Sr content. In accordance with the decrease in nonlinear coefficient, resonance frequency change during high-power vibration and the current-jumping phenomenon during constant-voltage driving were suppressed.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-10-30
著者
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Tashiro Shinjiro
Department Of Electrical Engineering The National Defence Academy
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Ishii Keisuke
Department of Chemistry, College of Science and Engineering, Aoyama Gakuin University
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