电子元件与材料2012，Vol.31Issue(7)：8-10,14,4.
Bi(Fe0.9Mn0.1)O3+σ对KNN基陶瓷的相结构及电性能的影响
Influences of Bi(Fe0.9Mn0.1)O3+σ on the structure and electric properties of the KNN-based ceramics
摘要
Abstract
K0.5Na0.5NbO3-LiSbO3-xBi(Fe0.9Mn0.1)O3+σ(KNN-LS-BF9M1) lead-free piezoelectric ceramics were prepared by the solid state reaction method, and the effects of BF9M1 doping amounts on the microstructures, phases and electrical properties of samples were investigated (x being 0, 0.002, 0.004, 0.006, 0.008). The results indicate that small amount of BF9M1 doping is effective for the suppression of grain growth and their densification. When x increases from 0 to 0.006, the samples exhibits a phase transition between orthorhombic and tetragonal and a downward trend of to-t from 95 ℃ to 40 ℃. Another, the piezoelectric constant dn is enhanced and the dielectric dissipation tarkS is reduced. When x=0.006, the samples haveoptimal electric properties:d33= 260 pC/N,tanδ=2.03× 10-2, kp=51.9%, εr=1 241, Qm= 44.7, tC =345 ℃,to-t=45℃.关键词
无铅压电陶瓷/K0.5Na0.5NbO3/显微结构/压电性能Key words
lead-free piezoelectric ceramics/ K0.5Na0.5NbO3/ microstructure/ piezoelectric property分类
信息技术与安全科学引用本文复制引用
胡耀斌,刘心宇,江民红,崔业让..Bi(Fe0.9Mn0.1)O3+σ对KNN基陶瓷的相结构及电性能的影响[J].电子元件与材料,2012,31(7):8-10,14,4.基金项目
广西自然科学基金资助项目(No.2010GXNSFD013007) （No.2010GXNSFD013007）
广西信息材料重点实验室主任基金资助项目(No.桂科能0710908-15-Z) （No.桂科能0710908-15-Z）
