Enhanced dielectric and piezoelectric properties in LiTaO3-doped lead-free (K,Na)NbO3 ceramics by optimizing sintering temperature

被引：59

作者：

Zhao, Pei ^{[1
]}

Zhang, Bo-Ping ^{[1
]}

Li, Jing-Feng ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 06期

基金：

中国国家自然科学基金;

关键词：

dielectrics; lead-free; perovskites; electroceramics;

D O I：

10.1016/j.scriptamat.2007.10.028

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports the enhanced piezoelectric properties in [(Na0.535K0.480)(0.966)Li-0.058] (Nb0.90Ta0.10)O-3 ceramics sintered at 1075-1120 degrees C. Because of morphotropic phase boundary-like behavior achieved by altering the sintering temperature from 1090 to 1105 degrees C, the piezoelectric coefficient is enhanced to 268 pC/N, the highest value reported for the LiTaO3-doped (Na,K)NbO3 ceramics. The corresponding Curie temperature and remanent polarization reached 445 degrees C and 11.5 mu C cm(-2), respectively. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：429 / 432

页数：4

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