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http://dx.doi.org/10.4313/JKEM.2016.29.6.332

Microstructure and Piezoelectric Properties of PMW-PNN-PZT Ceramics with Bismuth Substitution  

Kim, Yong-Jin (Department of Electrical Engineering, Semyung University)
Yoo, Ju-Hyun (Department of Electrical Engineering, Semyung University)
Shin, Dong-Chan (Dong-IL Electronics)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.29, no.6, 2016 , pp. 332-336 More about this Journal
Abstract
In this study, in order to develop the composition ceramics for ultrasonic sensor with high $d_{33}*g_{33}$, $Pb_{1-3x/2}Bix(Mg_{1/2}W_{1/2})_{0.03}(Ni_{1/3}Nb_{2/3})_{0.09}(Zr_{0.5}Ti_{0.5})_{0.88}O_3$(PMW-PNN-PZT) system ceramics were prepared using CuO as sintering aids. And then, their microstructure, piezoelectric and dielectric characteristics were systemetically investigated with bismuth substitution. The PMW-PNN-PZT ceramic specimens could be sintered at sintering temperature of $940^{\circ}C$ by adding sintering aids. At x=0.015 specimen, the density, electromechanical coupling factor($k_p$), dielectric constant, piezoelectric constant($d_{33}$) and piezoelectric figure of merit($d_{33}*g_{33}$) indicated the optimal properties of $7.90g/cm^3$, 0.67, 2,511, 628 pC/N, and $17.7pm^2/N$, respectively, for duplex ultrasonic sensor application.
Keywords
PMW-PNN-PZT; Bismuth substitution; Piezoelectric ceramic; Duplex ultrasonic sensor;
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Times Cited By KSCI : 1  (Citation Analysis)
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