YAN Bowu ^1,2

(1. School of Computer, Huangshi Ins titue of Technology, Huangshi 435003;2. Huazhong Univers ity of Science and

Technology, Wuhan 430074)

Abstract: For the preparation technology of the high power piezoelectric ceramics,the modified lead zirconate titanate Pb_0.9Ba_0.05Sr_0.05 (Sn_1/3Nb_2/3)_0.06 (Zn_1/3Nb_2/3) _0.06Ti_0.44Zr_0.44O₃+ xwt%MnO₂+ywt%Sb₂O₃ (PBSZT)was s tudied by changing the poling technique.The experiment result showed that the best poling electric - field intensity was 4kv/mm,and the best poling temperature was about 120℃.At this case,the high properties of the piezoelectric ceramics could be gained.

Keywords: Piezoelectric ceramics , dielectric loss , lead zirconate titanate