CuO/CeO_2共掺杂Ba_(0.85)Ca_(0.15)Zr_(0.1)Ti_(0.9)O_3无铅压电陶瓷性能研究  

Properties study of CuO-CeO_2 co-doped Ba_(0.85)Ca_(0.15)Zr_(0.1)Ti_(0.9)O_3 lead-free piezoelectric ceramics

作　　者：轩敏杰[1] 刘心宇[1,2] 马家峰[1,2] 袁昌来[1,2] 崔业让[1] 

机构地区：[1]桂林电子科技大学材料科学与工程学院,广西桂林541004 [2]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《电子元件与材料》2012年第5期12-14,共3页Electronic Components And Materials

基　　金：广西信息材料重点实验室研究基金资助项目(No.0710908-07-Z)

摘　　要：采用固相反应法制备了CuO、CeO2共掺杂Ba0.85Ca0.15Zr0.1Ti0.9O3(BCZT)无铅压电陶瓷,研究了CuO的掺杂量对所制陶瓷晶体结构、压电及介电性能的影响。结果表明:CuO的加入,进一步降低了预先经0.05%(质量分数)CeO2掺杂的BCZT陶瓷的烧结温度;在1 250℃烧结时,仍可获得纯钙钛矿结构的BCZT陶瓷。当CuO掺杂量为质量分数0.2%时,所制BCZT陶瓷具有最佳的压电性能:d33=370 pC/N,tC约为93℃,tanδ=0.0147。CuO-CeO2 co-doped Ba0.85Ca0.15Zr0.1Ti0.9O3（BCZT） lead-free piezoelectric ceramic was prepared by conventional solid state reaction method.The effects of CuO-CeO2 co-doping amounts on the crystal structures,piezoelectric and dielectric properties of prepared ceramics were investigated.The results indicate that the sintering temperature of the BCZT ceramic doped with 0.05%（mass fraction） CeO2 in advance can be further reduced by doping CuO.The BCZT ceramics can form pure perovskite solid solutions sintered at 1 250 ℃.When the doping amounts of CuO is 0.2%（mass fraction）,the BCZT ceramics possess optimal piezoelectric properties： d33=370 pC/N,tC≈93 ℃,tanδ=0.014 7.

关 键 词：无铅压电陶瓷 Ba0.85Ca0.15Zr0.1Ti0.9O3 低温烧结 居里温度 

分 类 号：TM28[一般工业技术—材料科学与工程]