Piezoelectric and dielectric characteristics of low temperature sintering Pb(Ni1/3Nb2/3)O3-Pb(Mn1/3Nb2/3)O3-Pb(Zr1/2Ti1/2)O3 ceramics for multilayer piezoelectric actuator

被引:12
作者
Yoo, Juhyun [1 ]
Hwang, Jungmin
Lee, Sangho
Chung, Kwanghyun
Lee, Hyunggyu
机构
[1] Semyung Univ, Dept Elect Engn, Chungbuk 390711, South Korea
[2] Korea Elect Technol Inst, Kyunggido 463816, South Korea
关键词
multilayer piezoelectric actuator; electromechanical coupling factor; piezoelectric constant; crystal structure;
D O I
10.1007/s10832-006-8567-3
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
In this study, in order to develop the composition ceramics for multilayer piezoelectric actuator, PNN substituted PMN-PZT ceramics were fabricated using Li2CO3 and Na2CO3 as sintering aids, and their piezoelectric and dielectric characteristics were investigated. With the increase of the amount of PNN substitution, dielectric constant (epsilon r), electromechanical coupling factor (k (p)), and piezoelectric constant (d (33)) of specimens showed the maximum value at each sintering temperature, and crystal structure changed from tetragonal to rhombohedral. At the sintering temperature of 950 degrees C, the density, epsilon r, k (p), d (33), Q(m) and Tc of 12 mol% PNN substituted PMN-PNN-PZT composition ceramics showed the optimal values of 7.79 g/cm(3), 1160, 0.599, 419pC/N, 894 and 332 degrees C, respectively, for low loss multilayer piezoelectric actuator application.
引用
收藏
页码:525 / 529
页数:5
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