Electrical properties and temperature coefficient of resonant frequency of Pb(Sb1/2Nb1/2)O3-Pb(Mn1/3Nb2/3)O3-Pb(Zr, Ti)O3 ceramics modified with Sr for high frequency filter

被引：4

作者：

Yoo, J ^{[1
]}

Oh, D

Min, S

Lee, S

Park, C

Kim, J

Park, E

机构：

[1] Semyung Univ, Dept Elect Engn, Jechon 390711, Chungbuk, South Korea

[2] Kyungpook Natl Univ, Dept Elect Engn, Taegu 306791, South Korea

[3] Samsung Electromech Co Ltd, Suwon 442743, Kyunggi, South Korea

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2002年 / 99卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

mechanical quality factor; temperature coefficient of resonant frequency third overtone thickness vibration mode;

D O I：

10.1016/S0924-4247(01)00915-3

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 structural, piezoelectric properties and temperature coefficient of resonant frequency (TCFc) of Pb(Sb1/2Nb1/2)O-3-Pb(Mn1/3Nb2/3)O-3-Pb(Zr, Ti)O-3 ceramics were investigated as a function of Sr substitution for Pb-site. With the increase of Sr substitution, Curie temperature was decreased and dielectric constant increased. As the Sr substitution, electromechanical coupling factor (k(t), k(t3)) in the fundamental and third overtone thickness vibration mode were increased while the electromechanical coupling factor, k(p) in the planar type vibration mode decreased. Mechanical quality factor (Q(mp), Q(mt), Q(mt3)) showed the maximum value of 972, 569 and 468, respectively. at 2 mol% Sr. Also, TCF, of the planar vibration mode and third overtone thickness vibration made showed small value of 22 ppm/ C at 2 mol% Sr and 0 ppm/degreesC at 5 mol% Sr, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：284 / 289

页数：6

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