(Ba,Sr)TiO_3基电容器陶瓷的制备及介电性能  

On(Ba,Sr)TiO_3 Series Capactor Ceramics

作　　者：王学荣[1] 唐吉龙[1] 

机构地区：[1]长春理工大学材料科学工程学院,吉林长春130022

出　　处：《河北师范大学学报（自然科学版）》2009年第1期58-61,共4页Journal of Hebei Normal University：Natural Science

摘　　要：在对BaTiO3基电容器陶瓷掺杂改性的实验基础上就改善(Ba,Sr)TiO3电容器陶瓷介电性能做了大量实验研究.经测试结果分析表明,(Ba,Sr)TiO3基电容器陶瓷最佳烧结温度为1 350℃,由此温度烧结可获得最高介电常数为11 784及介电损耗为0.100的优质电容器陶瓷.结合陶瓷的显微结构SEM照片分析,探讨了添加Sr2+,Ca2+,Zr4+及稀土Dy3+离子对改善(Ba,Sr)TiO3基电容器陶瓷介电性能的机理.The ceramics of （Ba,Sr）TiO3（BaTiO3 and SrTiO3） are prepared by sinter method. The dielectric properties of （Ba, Sr）TiO3 have been modified by different ion doping. SEM observation shows that the best sinter temperature is 1 350 ℃ ,corresponding dielectric constant is 11 784 and dielectric loss is 0. 100. Test results show that different donors doped have different influence on dielectric properties. And, the mechanism and reason that some positive ions＇ （Sr^2 ＋ , Ca^2 ＋ , Zr^4 ＋ and Dy^3 ＋ ） doping amend dielectric properties of （Ba, Sr） TiO3 have been discussed and analyzed.

关 键 词：电容器陶瓷 介电性能 掺杂离子 (Ba Sr)TiO3 

分 类 号：TN394.93[电子电信—物理电子学]