Effect of Sintering Temperature on the Electromechanical Properties of (1-x)Pb(ZryTi1-y)O3-xSm(Fe3+0.5, Nb5+0.5)O3 Ceramics

AbstractThe effect of sintering temperature on the structure and piezoelectric properties of (1-x)Pb(Zry Ti1-y)O3-xSm(Fe3+5+0.5)O3[PZT-SFN] sintered samples, with 0.47≤ y≤ 0.57, was investigated. The samples structure was determined by X-ray diffractometry and the piezoelectric properties by the resonance–antiresonance method. A morphotropic phase boundary (MPB) with optimum piezoelectric properties was found around 0.51≤ y≤ 0.55. The electromechanical coupling factor was maximum for the two samples where y=0.53, kp = 0,63 and y=0.55, kp = 0,631