Publisher : The Korean Institute of Electrical and Electronic Material Engineers
DOI : 10.4313/JKEM.2016.29.6.332
Title & Authors
Microstructure and Piezoelectric Properties of PMW-PNN-PZT Ceramics with Bismuth Substitution Kim, Yong-Jin; Yoo, Ju-Hyun; Shin, Dong-Chan;
In this study, in order to develop the composition ceramics for ultrasonic sensor with high , (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 by adding sintering aids. At x=0.015 specimen, the density, electromechanical coupling factor(), dielectric constant, piezoelectric constant() and piezoelectric figure of merit() indicated the optimal properties of , 0.67, 2,511, 628 pC/N, and , respectively, for duplex ultrasonic sensor application.