Effect of SrZrO3 on phase structure and electrical properties of 0.974(K0.5Na0.5)NbO3-0.026Bi0.5K0.5TiO3 lead-free ceramics

被引：22

作者：

Huang, Tao ^{[1
]}

Xiao, Dingquan ^{[1
]}

Liu, Chao ^{[1
]}

Li, Fangxu ^{[1
]}

Wu, Bo ^{[1
]}

Wu, Jiagang ^{[1
]}

Zhu, Jianguo ^{[1
]}

机构：

[1] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 02期

关键词：

Piezoelectric properties; Lead-free ceramics; Phase boundary; KNN; SrZrO3; PIEZOELECTRIC PROPERTIES; TRANSITIONAL BEHAVIOR; DIELECTRIC-PROPERTIES; MICROSTRUCTURE; TEMPERATURE;

D O I：

10.1016/j.ceramint.2013.10.048

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

(0.974-x)(K0.5Na0.5)NbO3-0.026Bi(0.5)K(0.5)TiO(3)-xSrZrO(3) lead-free piezoelectric ceramics have been prepared by the conventional solid state sintering method. Systematic investigation on the microstructure, crystalline structures as well as electrical properties of the ceramics was carried out. With the addition of SrZrO3, the rhombohedral-orthorhombic phase transition temperature of the ceramics increases. Both the rhombohedral-orthorhombic and orthorhombic-tetragonal phase transitions of the ceramics were modified to be around room temperature when x similar to 0.05, and as a result remarkably strong piezoelectricity has been obtained in 0.924(K0.5Na0.5)NbO3-0.026Bi(0.5)K(3.5)TiO(3)-0.05SrZrO(3) ternary system, whose piezoelectric parameters were d(33)=324 pC/N and k(p)=41%. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：2731 / 2735

页数：5

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