Dielectric and piezoelectric properties of xpb(y2/3w1/3)o3-(l - x)pb(zr0. 52ti0 48)o3 ceramics

Abstract

Dielectric and piezoelectric properties of xPb(Y2/3W1/3)O3-(1 - x)Pb(Zr0. 52Ti0.48)O3 system were investigated. Solubility limit of PYW into PZT was found to be near 0.02 mol' PYW, and when more than 0.03 mol' PYW was added, yttrium-rich second phase was observed. Grain size was decreased with the addition of PYW. 0.02 Pb(Y2/3W1/3)O3-0.98 Pb(Zr0. 52Ti0.48)O3 showed piezoelectric constant (d33) of 420 x 10-12 C/N and electromechanical coupling factor (kp) of 56'. The variations of dielectric and piezoelectric properties were explained by second phase formation and microstructural evolution. ？ 1993, Taylor & Francis Group, LLC. All rights reserved.