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http://dx.doi.org/10.4313/JKEM.2007.20.12.1039

Piezoelectric and Dielectric Properties of Low Temperature Sintering PMN-PZN-PZT Ceramics according to the Milling Time  

Yoo, Ju-Hyun (세명대학교 전기공학과)
Lee, Il-Ha (세명대학교 전기공학과)
Lee, Kab-Soo (세명대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.12, 2007 , pp. 1039-1043 More about this Journal
Abstract
In this paper, in order to develop low temperature sintering ceramics for multilayer piezoelectric actuator application, PMN-PZN-PZT ceramics were fabricated using $LiCO_3,\;Bi_2O_3$ and CuO as sintering aids. And also, their piezoelectric and dielectric properties were investigated according to the milling time. All the specimens sintered at $930\;^{\circ}C$ showed tetragonal phases without secondary phases. With increasing milling time, piezoelectric and dielectric characteristic of specimens increased up to 60 hours milling time and then decreased due to the agglomeration of fine particle. Accordingly, it seems that 60 hour is optimum milling condition. At the sintering temperature of $930\;^{\circ}C$ and milling time of 60 hour, density, dielectric constant(${\varepsilon}_r$), electromechanical coupling factor (kp), mechanical quality factor (Qm), piezoelectric d constant showed the optimum value of $7.95\;g/m^3$, 1382, 0.546, 1749, 330 pC/N, respectively for multilayer piezoelectric actuator application.
Keywords
Milling time; Low temperature sintering; Low loss; Piezoelectric actuator;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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