Doping effects of Nb additives on the piezoelectric and dielectric properties of PZT ceramics and its application on SAW device

被引：109

作者：

Chu, SY

Chen, TY

Tsai, IT

Water, W

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 03171, Taiwan

[2] Tung Nan Inst Technol, Dept Elect Engn, Taipei, Taiwan

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2004年 / 113卷 / 02期

关键词：

PZT; dielectric properties; piezoelectricity; surface acoustic wave (SAW);

D O I：

10.1016/j.sna.2004.02.020

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The PZT-based ceramics with a composition of Pb(1-0.5x)(Zr(0.52)Ti(0.48))(1-x)Nb(x)O(3); X = 0.02-0.06 were prepared by conventional mixed-oxide method, with sintering temperature at 1250degreesC for 2h. Microstructural and compositional analyses of the PZT-based ceramics have been carried out using XRD and SEM. The dielectric constant measured at 1 kHz is about 1500 and the loss factor is small than 2%. The maximum planar electromechanical coupling coefficient, k(p), is 0.591. It showed that the Nb additives were helpful improve both of the dielectric and piezoelectric properties. Surface acoustic wave (SAW) filters were fabricated and the property, phase velocity, were measured. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：198 / 203

页数：6

共 24 条

[1] POINT DEFECTS AND SINTERING OF LEAD ZIRCONATE-TITANATE [J].