Lead-Free Relaxor-Like 0.75Bi0.5K0.5TiO3-0.25BiFeO3 Ceramics with Large Electric Field-Induced Strain

被引：26

作者：

Morozov, M. I. ^{[1
]}

Einarsrud, M. -A. ^{[1
]}

Grande, T. ^{[1
]}

Damjanovic, D. ^{[2
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, NO-7491 Trondheim, Norway

[2] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Ceram Lab, CH-1015 Lausanne, Switzerland

来源：

FERROELECTRICS | 2012年 / 439卷

关键词：

Lead-free; bismuth potassium titanate; bismuth ferrite; relaxor; PIEZOELECTRIC PROPERTIES;

D O I：

10.1080/00150193.2012.741946

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dense and phase-pure ferroelectric ceramics of 75 mol.% Bi0.5K0.5TiO3 - 25 mol.% BiFeO3 are prepared by the conventional solid state reaction method. Their crystal structure is analyzed and discussed. The dielectric and piezoelectric properties of the ceramics are investigated at various temperatures. The ceramics exhibit relaxor-like dielectric properties and high electric field-induced strain (equivalent to 250-300 pm/V at 25-75 degrees C), not previously reported for this composition, making it a promising lead-free alternative for actuator applications.

引用

页码：88 / 94

页数：7

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