铜掺杂对于铌钽酸盐压电陶瓷性能的影响

Effects of Cu-doping on the Properties of Niobate-tantalate Piezoelectric Ceramics

采用传统固相反应烧结方法制备（K0.44Na0.52Li0.04）（Nb0.80Ta0.20）O3-x％（质量分数）CuO（x=0-0．9）陶瓷，研究其压电和介电性能随x的变化关系，同时应用XRD、SEM和阻抗分析仪对陶瓷的显微结构和电性能进行分析、实验发现，当x=0．3时，陶瓷电学性能相对较好。

Lead-free piezoelectric ceramics CuO-doped （K, Na, Li） （Nb, Ta） O3 were prepared using traditional solid-state reaction method, and the relationship of value x and electric properties were investigated. The microstructure and electric properties of the sample were Characterizeal by XRD, SEM and impedance analyzer. The results indicated the piezoelectric properties of ceramics are better when CuO content was 0.3 wt %.