High electromechanical coupling piezoelectrics: relaxer and normal ferroelectric solid solutions

被引：63

作者：

Uchino, K ^{[1
]}

机构：

[1] Penn State Univ, Int Ctr Actuators & Transducers, Mat Res Lab, University Pk, PA 16802 USA

来源：

SOLID STATE IONICS | 1998年 / 108卷 / 1-4期

关键词：

electromechanical coupling; piezoelectric; relaxor ferroelectric; domain motion;

D O I：

10.1016/S0167-2738(98)00017-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new category of piezoelectric ceramics with very high electromechanical coupling was discovered in a lead zinc niobate-lead titanate solid solution in a single crystal form. The maximum coupling factor k(33) reaches 95%, which corresponds to the energy conversion rate twice as high as the conventional lead zirconate titanate ceramics. This paper reviews the previous studies on superior piezoelectricity in relaxer ferroelectric: lead titanate solid solutions and on the possible mechanisms of this high electromechanical coupling. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：43 / 52

页数：10

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