铈掺杂对0.70PZN-0.15PT-0.15BT压电陶瓷结构与电性能的影响

摘要

采用两步合成法制备了CeO2掺杂Pb1-xCex/2（Zn1/3Nb2/3）0.70Ti0.3Ba0.15O3（0.70PZN-0.15PT-0.15BT-x,x=0.00,0.02,0.04,0.06）压电陶瓷,研究了铈含量变化对0.70PZN-0.15PT-0.15BT-x压电陶瓷材料相结构及其相关电性能的影响.随CeO2含量增加,居里温度升高,当x=0.04时,其压电系数d33达到225pC/N.%Piezoelectric ceramics Pb1-xCex/2（Zn1/3Nb2/3）0.7Ti0.3Ba0.15O3（0.70PZN-0.15PT-0.15BT,x=0.00,0.02,0.04,0.06） were prepared using two-step synthetic method.The effect of cerium oxide doping on the phase structure,dielectric properties,piezoelectric properties of 0.70PZN-0.15PT-0.15BT ceramics was investigated in details.Curie temperature is enhanced with the doping of CeO2.The piezoelectric constant reaches 225 pC/N with x = 0.04.