锆钛比变化对PZT-PZN-PMS压电陶瓷相结构及电学性能的影响-陕西师范大学学报期刊社网站

陕西师范大学学报（自然科学版）

专题研究

锆钛比变化对PZT-PZN-PMS压电陶瓷相结构及电学性能的影响

张邦劳1，常云飞2*

(1 陕西师范大学食品工程系; 2 陕西师范大学化学与材料科学学院，陕西西安 710062)

张邦劳，男，高级实验师，主要从事纳米材料方面的研究．通讯作者：常云飞，女，博士研究生．

摘要:

通过传统固相法合成了四元系压电陶瓷材料Pb095Sr005(Zr1-xTix)O3-Pb(Mn1/3 Sb2/3)O3-Pb(Zn1/3Nb2/3)O3 (简称PZT-PMS-PZN),用XRD技术分析了陶瓷的相结构,研究了不同Zr/Ti比对该材料的机械品质因数Qm、机电耦合系数KP、压电常数d33、介电常数εr以及介电损耗tan δ的影响. 结果表明,当046≤x≤050时，材料四方与菱方两相共存，即为材料的准同型相界．当x=048且烧结温度为1150 ℃时,陶瓷具有优良的综合电学性能.其主要性能参数为: εr=1 761, tan δ=0002 8，Qm=1 300, d33=351 pC/N, Kp=058．该材料可作为大功率压电陶瓷变压器的候选材料.

关键词：

PZT-PMS-PZN；压电陶瓷；压电性能；介电性能

收稿日期：

2006-06-15

中图分类号：

TM282

文献标识码：

文章编号：

1672-4291(2007)01-0074-03

基金项目：

Doi:

Effects of Zr/Ti ratio on the structure and properties of PZT-PZN-PMS piezoelectric ceramics

ZHANG Bang-lao1, CHANG Yun-fei2

(1 Department of food Engineering, Shaanxi Normal University; 2 College of Chemistry and Materials Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)

Abstract:

Piezoelectric ceramics with the compositions of Pb095Sr005(Zr1-xTix)O3-Pb(Mn1/3Sb2/3)O3-Pb(Zn1/3Nb2/3)O3 (PZT-PMS-PZN) ceramics were successfully prepared by a conventional mixed-oxide method. The effects of Zr/Ti ratio varying in the vicinity of the morphotropic phase boundary (MPB) on the phase structure and electrical properties of PZT-PMS-PZN ceramics have been investigated. The results of XRD indicate that the MPB is a broad composition range of 046≤x≤050. When x is at 048, the piezoelectric ceramics have excellent properties, which are listed as follows: εr=1 761, tanδ=00 028, Qm=1 300, d33=351pC/N, KP=058. The results show that the ceramics are very promising materials for high power piezoelectric transformer applications.

KeyWords:

PZT-PMS-PZN; piezoelectric ceramics; piezoelectric properties; dielectric properties