PIEZOELECTRIC, PYROELECTRIC AND DIELECTRIC-PROPERTIES OF LANTHANUM MODIFIED LEAD ZIRCONATE TITANATE CERAMICS

被引：29

作者：

ARORA, AK ^{[1
]}

TANDON, RP ^{[1
]}

MANSINGH, A ^{[1
]}

机构：

[1] NATL PHYS LAB,DIV MAT,NEW DELHI 110012,INDIA

来源：

FERROELECTRICS | 1992年 / 132卷 / 1-4期

关键词：

PIEZOELECTRIC; PYROELECTRIC; DIELECTRIC; TRANSITION TEMPERATURE; CURIE-WEISS LAW; DIFFUSE PHASE TRANSITION;

D O I：

10.1080/00150199208009067

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The piezo-, pyro- and dielectric properties of lanthanum modified lead zirconate titanate (PLZT) ceramics has been investigated as a function of Zr/Ti ratio for 4% La, The pyroelectric coefficients show a minima at the morphotropic phase boundary. The pyroelectric and dielectric properties show different transition temperatures. The transition temperatures from dielectric measurements are frequency dependent. A non-linear Curie-Weiss law is observed for all the compositions studied, and also a Debye type relaxation occurs near the transition temperature region. The observed phase transition from ferroelectric phase to paraelectric is discussed in light of the diffuse phase transition.

引用

页码：9 / 25

页数：17

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