ELECTROMECHANICAL PROPERTIES OF RELAXOR FERROELECTRIC LEAD MAGNESIUM NIOBATE-LEAD TITANATE CERAMICS

被引：79

作者：

ZHAO, J ^{[1
]}

ZHANG, QM ^{[1
]}

KIM, N ^{[1
]}

SHROUT, T ^{[1
]}

机构：

[1] PENN STATE UNIV,INTERCOLL MAT RES LAB,UNIVERSITY PK,PA 16802

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1995年 / 34卷 / 10期

关键词：

ELECTROSTRICTION; PIEZOELECTRICITY; RELAXER FERROELECTRICS; ACTUATOR AND TRANSDUCER; PHASE TRANSITION;

D O I：

10.1143/JJAP.34.5658

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, the results of a recent investigation of the dependence of the induced piezoelectric activity on temperature, electric bias field, and frequency and the electrostrictive response in tilt relaxer ferroelectric lead magnesium niobate-lead titanate ceramics ((1-x)(Pb(Mg1/3Nb2/3)O-3)-x(PbTiO3)) at compositions below 30% PT are presented. It was observed that the electrostrictive strain at temperatures near the dielectric constant maximum T-max increases monotonically with increased PT content. for PMN:PT at compositions near 30% PT, the electrostrictive strain under a 10 kV/cm electric field can reach about 0.15% with very little hysteresis. An exceptionally large piezoelectric response with an effective piezoelectric d(33) coefficient in the electric field induced state of over 1,800 pC/N could be achieved for selected PMN:PT compositions and electric bias fields.

引用

页码：5658 / 5663

页数：6

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