中文摘要：

采用传统电子陶瓷制备工艺制备（1-y）（Na0.5Bi0．5）TiO3-yBa（ZrxTi1-x）O3无铅压电陶瓷，获得了d33高达185pC／N的0．94（Na0.5Bi0．5）TiO3-0.06Ba（Zr0．055Ti0．945）O3压电陶瓷．对Bi的挥发进行了补偿，添加过量Bi2O3（摩尔分数z=0.08）的钛酸铋钠基压电陶瓷，d33高达218pC／N。研究了Mn掺杂对钛酸铋钠基陶瓷压电、介电性能和损耗的影响，获得了高性能的无铅压电陶瓷，其中如3为214pC／N，k1为0．44，如3为0.52。

英文摘要：

Lead-free piezoelectric ceramics （1-y）（Na0.5Bi0.5）TiO3-yBa（ZrxTi1-x）O3 were fabricated using the conventional ceramics technique. The composition 0.94（Na0.5Bi0.5）TiO3-0.06Ba（Zr0.055Ti0.945）O3 is obtained with d33 as high as 185 pC/N. By means of compensating the volatilization of Bi2O3, （Na, Bi）TiO3 based ceramics doped with extra 0.08%（mole fraction） Bi2O3 can be obtained with d33 as high as 195 pC/N. The effects of doping Mn on the piezoelectric, dielectric constant and dielectric loss are investigated, and the acquired （Na, Bi）TiO3 based lead-free piezoelectric ceramics have optimal properties： d33=214 pC/N, kt = 0.44, k33 = 0.52.