人工晶体学报2012，Vol.41Issue(4)：967-972,6.
CuO掺杂对KNN-LS-BF无铅压电陶瓷性能的影响
Effects of CuO Doping on Properties of KNN-LS-BF Lead-free Piezoelectric Ceramics
摘要
Abstract
0.996[0.95(Na0.5K0.5NbO3-0.05IiSbO3)-0.004FeBiO3(KNN-LS-BF) lead-free ceramics were well sintered at 1040℃ with the addtion of x mol% CuO by the conventional fabrication technology. The effects of CuO doping on structural and piezoelectric properties of KNN-LS-BF ceramics were investigated. The results show that the CuO doping has no influence on the phase structure of KNN-LS-BF ceramics, but it is effective in promoting low-Fire and improving the piezoelectric properties of KNN-LS-BF ceramics. As the CuO content x increasing, the d33, kp and s r increases at first and then decreases as well as reached the maximum of 222 pC/N, 0. 36 and 1223. 14 around x = 0. 15, respectively; Qm changed as same as preceding, but the maximum is 66.02 when x =0.3; while tan￡ changed oppositely, it's minimum and best value was 2.5% around x =0.45. The specimen have the best comprehensive properties when x =0.3 and the relating constants are- d33 =222 pC/N,kp =0.36,εr =1223.14,tanδ=3.3% ,Qm =52.27.关键词
无铅压电陶瓷/CuO掺杂/性能Key words
lead-free piezoelectric ceramics/ CuO doping/ properties分类
化学化工引用本文复制引用
翟霞,王华,崔业让,袁昌来,许积文,张小文,周昌荣,江民红,刘心宇..CuO掺杂对KNN-LS-BF无铅压电陶瓷性能的影响[J].人工晶体学报,2012,41(4):967-972,6.基金项目
广西自然科学基金重点项目(2010GXNSFD013007) （2010GXNSFD013007）
