CeO_2掺杂KNN-LiSbO_3无铅压电陶瓷的压电性能研究  

Study on Piezoelectric Properties of CeO_2 Doped NKN-LiSbO_3 Lead-free Ceramics

作　　者：亓鹏[1] 王殿生[1] 刘超卓[1] 

机构地区：[1]中国石油大学(华东)物理科学与技术学院,东营257061

出　　处：《科学技术与工程》2011年第20期4687-4690,共4页Science Technology and Engineering

基　　金：中国石油大学(华东)引进人才科研基金项目(Y081811)资助

摘　　要：利用传统固熔烧结法研究了Ce掺杂的95KNN-5LiSbO3无铅压电陶瓷(简称KNN-LS)的微观结构、压电性质、老化率和防潮性能。实验结果显示,掺杂CeO2对KNN-LS陶瓷在烧结温度、质量损耗、压电性质和微观结构有特殊的影响规律,从微观反应机理上对其做了解释。成功地制备出高压电常数(255 pC/N)、高致密度(98.1%)、低老化率和高防潮性能的无铅压电陶瓷样品,表明这是一种很有应用潜力的无铅压电材料。The effects on microstructure,piezoelectric properties,the aging rate,and the non-deliquescence of 95NKN-5LiSbO3 lead-free piezoceramics（KNN-LS） have been investigated.The experiment results show that a large difference caused by doping CeO2 in the sintering temperature,the mass loss,piezoelectric properties,microstructure appeared.The detailed analysis for the physical mechanism causing these differences is conducted.Samples with high piezoelectric constant（255pC/N）,high relative density（98.1%）,low aging rate and strong performance against deliquescence are prepared,which indicate that this ceramics is a promising and practical lead-free piezoelectric ceramics.

关 键 词：无铅压电陶瓷 铌酸盐 掺杂 CEO2 烧结温度 

分 类 号：O482.41[理学—固体物理]