Study on the Property of Ba0.85Ca0.15Ti0.9Zr0.1O3 Lead-free Piezoelectric Ceramics Doped with Li2CO3

摘要：

　　Ba0.85Ca0.15Ti0.9Zr0.1O3-xLi2CO3 lead-free piezoelectric ceramics (abbreviated as BCZT-xLi) were prepared by conventional solid state reaction method.The microstructure,piezoelectric properties and dielectric properties were studied for BCZT-xLi samples doped with different Li2CO3 content(x=0,0.05,0.1 0.2 0.3,0.4wt.%).The results show that the piezoelectric constant(d33),planar electron mechanical coupling coefficient(kp) and thickness electron mechanical(kt) of BCZ-T-xLi ceramics increase firstly and decreases subsequently with increasing of Li+ doping amount,the dielectric Ioss(tanδ) of BCZT-xLi ceramics decreases firstly and then increases at the same time while Li+ doping amount increases.But the r-elative permittivity (εr) of BCZT-xLi ceramics increases all the time.With the in-creasing of the amount of Li2CO3 doped the grain size of BCZT-Li ceramic first increases and then decreases.The BCZT-xLi ceramics display the optimum properties (d33=83,tanδ=0.035,εr=2020,kp=0.41,kt=0.046) while Li2CO3 doped amount is 0.20wt.%.

关键词： piezoelectric ceramics Li2CO3 lead-free piezoelectric ceramics piezoelectric property

作者: Zhiwen Zhu Xinyou Huang Haitang Hua Yan Li

作者单位: School of Materials Science and Engineering,Jiangsu University, Zhenjiang,Jiangsu,212013,China Shantou High-New Zone Songtian Enterprise CO.,Ltd.Shantou,Guangdong, 515041, China

会议类型: 国际会议

会议名称: 2012 2nd International Symposium on Chemical Engineering and Material Properties(ISCEMP2012)(2012第二届化学工程与材料特性国际研讨会)

会议地点: 太原

会议语种:英文

页码: 651-654

在线出版日期: 2012-06-23（万方平台首次上网日期，不代表论文的发表时间）