SrBaNb-SrBaTi复合陶瓷的制备和介电性能研究  

Preparation and dielectric property of Sr_xBa_(1–x)Nb_2O_6-Sr_(0.6)Ba_(0.4)TiO_3 composite ceramics

作　　者：钮效鹍[1] 张家良[1] 王矜奉[1] 李彩玉[1] 吕应刚[1] 

机构地区：[1]山东大学物理与微电子学院,山东济南250100

出　　处：《电子元件与材料》2007年第4期8-10,共3页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(50572055);山东省优秀中青年科研奖励基金资助项目(2005BS04013)

摘　　要：采用传统固相反应法分别制作了SrxBa1–xNb2O6(x=0.3,0.4,0.5,0.6)和Sr0.6Ba0.4TiO3单相陶瓷以及两相混合的复合陶瓷。结果表明,该制备方法简单,能够精确控制复合陶瓷中SrxBa1–xNb2O6和Sr0.6Ba0.4TiO3的组分含量,其中Sr0.6Ba0.4Nb2O6与Sr0.6Ba0.4TiO3按摩尔比1∶1混合所得复合陶瓷样品的介电温度特性最佳,10kHz下在25～60℃温度范围内αε为3.224×10–7,tanδ小于0.7×10–2。SrxBa1-xNb2O6（x=0.3, 0.4, 0.5, 0.6）, Sr0.6Ba0.4TiO3 ceramics and SrxBa1-xNb206-Sr0.6Ba0.4TiO3 composite ceramics were fabricated respectively by ordinary ceramic sintering technique. The results show that the composite ceramic fabricate method is convenient and the composition contents of SrxBa1-xNb2O6 and Sr0.6Ba0.4TiO3 in the composite ceramics can be accurately controlled. At 25-60℃ and the frequency of 10 kHz the composite ceramic specimens, which are mixed by Sr0.6Ba0.4Nb2O6 and Sr0.6Ba0.4TiO3 with the mole ratio of 1 ： 1, shows the best dielectric temperature characteristics of αε equals to 3.224 ×10^-7 and tan δ less than 0.7 ×10^-2.

关 键 词：无机非金属材料 铌酸锶钡 钛酸锶钡 钨青铜结构 钙钛矿结构 复合陶瓷 介电性能 

分 类 号：TM28[一般工业技术—材料科学与工程]