Calcination Effects on the Piezoelectric Properties for Ag2O Doped 0.94(K0.5Na0.5)NbO3-0.06LiNbO3 Lead-Free Piezoelectric Ceramics

被引：1
作者：
Chae, Moon-Soon [1 ]
Koh, Jung-Hyuk [1 ]
机构：
[1] Kwangwoon Univ, Dept Mat Engn, Seoul 139701, South Korea
来源：
FERROELECTRICS | 2012年 / 429卷
基金：
新加坡国家研究基金会;
关键词：
Ag2O; lead-free; calcinations temperature; SINTERING TEMPERATURE; MICROSTRUCTURE; MNO2; CUO;
D O I：
10.1080/00150193.2012.676965
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
7 mol% Ag2O doped 0.94(Na0.5K0.5)NbO3-0.06LiNbO(3) lead-free piezoelectric ceramics were prepared by the conventional mixed method. The effects of calcination temperature on the bulk density, piezoelectric and ferroelectric properties were investigated for the Ag2O doped 0.94(Na0.5K0.5)NbO3-0.06LiNbO(3) ceramics. The calcinations temperature was varied from 750 to 950 degrees C by 50 degrees C differences. The experimental results show that the 7 mol% Ag2O doped 0.94(Na0.5K0.5)NbO3-0.06LiNbO(3) ceramics, calcined at 850 degrees C, have the high density rho = 4.26 g/cm(3) and piezoelectric constant d(33) = 262 pC/N. The experimental results show that calcination temperature strongly affects the microstructure and the electrical properties of the ceramics.
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页码：82 / 87
页数：6
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