Effect of addition of Ba(W_(0.5)Cu_(_(0.5))O_3 in Pb(Mg_(1/3)Nb_(2/3))O_3-Pb(Zn_(1/3)Nb_(2/3))O_3-Pb(Zr(0.52)Ti_(0.48))O_3 ceramics on the sintering temperature, electrical properties and phase transition

摘要

In this work, we report on the Pb(Mg_(1/3)Nb_(2/3))O_3-Pb(Zn_(1/3)Nb_(2/3))O_3-Pb(Zr_(0.52)Ti_(0.48)O_3 (PMN-PZN-PZT) ceramics with Ba(W_(0.5)Cu_(0.5))O_3 as the sintering aid that was manufactured in order to develop the low-temperature sintering materials for piezoelectric device applications. The phase transition, microstructure, dielectric, piezoelectric properties, and the temperature stability of the ceramics were investigated. The results showed that the addition of Ba(W_(0.5))Cu_(0.5))O_3 significantly improved the sintering temperature of PMN-PZN-PZT ceramics and could lower the sintering temperature from 1005 to 920 °C. Besides, the obtained Ba( W_(0.5) CU_(0.5) )O_3 -doped ceramics sintered at 920 °C have optimized electrical properties, which are listed as follows: (K_P = 0.63, Q_m = 1415 and d_(33)=351 pC/N), and high depolarization temperature above 320 °C. These results indicated that this material was a promising candidate for high-power multilayer piezoelectric device applications.