Study on properties of PMSZT piezoelectric ceramics

Pb1.04(Mn1/3Sb2/3)0.05 xTi0.95-x ternary piezoelectric ceramics were prepared by using two-stage technique with solid oxides as raw materials. The crystallographic phase, microstructure, electric-properties and temperature stability of the system were studied. The results showed that pure perovskitic structure was obtained at calcination of 900 deg C for 2 h. Measurements on polarized products indicated that material with excellent performance were developed, and the optimized results of epsilon33T/epsilon0(1420), d33(324pC/N), Kp(62%), Qm(2400), tandelta(0.0029) were obtained at sintering of 1240 deg C temperatures for 2 h. Sintering temperature has an effect on the changes of resonant frequency, which increase in the range of positive temperature, but decrease in the range of negative temperature with sintering temperature increasing.