Effects of internal electrode composition on the reliability of low-firing PMN-PZT multilayer ceramic actuators

被引：25

作者：

Lee, Jae-Shin ^{[1
]}

Choi, Mun-Seok ^{[1
]}

Han, Hyoung Su ^{[1
]}

Kong, Young-Min ^{[1
]}

Kim, Sunjung ^{[1
]}

Kim, Ill Won ^{[2
]}

Kim, Min Soo ^{[3
]}

Jeong, Soon Jong ^{[3
]}

机构：

[1] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 680749, South Korea

[2] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea

[3] Korea Electrotechnol Res Inst, Elect & Magnet Devices Grp, Gyungnam 641600, South Korea

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2009年 / 154卷 / 01期

关键词：

Multilayer actuator; Reliability; Internal electrode; Piezoelectric ceramics; PIEZOELECTRIC PROPERTIES; LOW-TEMPERATURE; BEHAVIOR;

D O I：

10.1016/j.sna.2009.06.003

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：

We investigated the effects of internal electrode composition on the reliability of low-firing multilayer ceramic actuators using Ag internal electrodes. Ag-ceramic composite pastes were prepared by adding Pb(Mg(1/3)Nb(2/3))O(3)-Pb(Zr(0.475),Ti(0.525))O(3) (PMNZT) ceramic powders to a commercial Ag paste at concentrations in the range of 0-60vol%. PMNZT multilayered laminates were fabricated using tape casting, and then cofired at 925 degrees C for 10 h. The fatigue behaviors of multilayer actuators with Ag internal electrodes having different PMNZT concentrations were compared by applying a 2 kV/mm ac electric field at 50 degrees C under a relative humidity of 30%. The failure data were analyzed using Weibull statistics. The addition of PMNZT ceramics enhanced the mean time to failure by reducing the densification mismatch between the piezoelectric ceramic and internal electrode layers during the cofiring process. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：97 / 102

页数：6

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