Effect of composition on the electromechanical properties of Pb[ZrxTi(0.9 − x)(Cr1/5, Zn1/5, Sb3/5)0.1]O3 ceramics

The effect of composition on the structure and piezoelectric properties of Pb[ZrxTi(0.9 − x)(Cr1/5, Zn1/5, Sb3/5)0.1]O3 sintered samples, with 0.40 ≤ x ≤ 0.49, 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 x = 0.45. The maximum electromechanical coupling factor was kp = 0.64.