Anomalous piezoelectric and elastic properties of a tetragonal PZT ceramic near morphotropic phase boundary

被引：12

作者：

Franke, I ^{[1
]}

Roleder, K ^{[1
]}

Klimontko, J ^{[1
]}

Ratuszna, A ^{[1
]}

Soszynski, A ^{[1
]}

机构：

[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2005年 / 38卷 / 05期

关键词：

D O I：

10.1088/0022-3727/38/5/013

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A ceramic of nominal formula Pb0.95Sr0.05(Zr0.53Ti0.47)(0.98)Nb0.02O3 has been investigated. Dielectric properties and differential scanning calorimetry tests pointed to a transformation temperature of 306 degrees C. By means of a dynamic method the piezoelectric and complex elastic compliances for polarized ceramics have been measured as a function of temperature. The temperature dependence of the elastic properties has indicated bilinear coupling between the order parameter and strain. The unexpected existence of a pertinent piezoelectric response far above T epsilon(max). accompanied by strong changes in the elastic properties was observed. On the basis of the dielectric response and x-ray diffraction studies carried out on poled and unpoled ceramics, the influence of the compositional fluctuations and the existence of polar regions on the anomalous piezoelectric activity above T epsilon(max) were considered rather than a change of symmetry after the action of an external electric field.

引用

页码：749 / 753

页数：5

共 24 条

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