微波介电陶瓷Ba_(1.8)Sr_(0.2)La_2Ti_2NbO_(12)的合成及介电特性研究  

The Synthesis and Dielectric Properties of the Microwave Dielectric Ceramic Ba_(1.8)Sr_(0.2)La_2Ti_2NbO_(12)

作　　者：刘红飞 Liu Hongfei(School of Physics and Electronic - Electrical Engineering, Ningxia University ,Yinchuan 7500 2 1, China)

机构地区：[1]宁夏大学物理与电子电气工程学院,宁夏银川750021

出　　处：《山东化工》2017年第21期8-9,共2页Shandong Chemical Industry

基　　金：宁夏高等学校科学研究项目(NGY2015033)

摘　　要：制备合成了微波介电陶瓷Ba_(1.8)Sr_(0.2)La_2Ti_2Nb O_(12)。采用X射线衍射分析进行了结构分析、并用LCR测量仪对其介电性能进行了测试。结果表明:Ba_(1.8)Sr_(0.2)La_2Ti_2Nb O_(12)结构为六方层状类钙钛矿,晶胞常数为:a=b=5.691 7),c=27.820 7),V=780.28 7)~3,Z=3,具有优异的介电性能。介电常数为46.4,介电损耗为0.00083。The microwave ceramic Ba_（1.8）Sr_（0.2）La_2Ti_2NbO_（12） is prepared,the structer is indexed by X-Ray,the unit cell parameter a = b = 5. 691 7）,c = 27. 820 7）,V = 780. 28 7）~3,and Z = 3. It shows Ba_（1.8）Sr_（0.2）La_2Ti_2NbO_（12） is hexagonal perovskite structure,have superior properties.The microwave dielectric properties of the ceramic were studied using LCR,and it shows a high dielectric constant of 46. 4 and the loss dielectric loss with 0. 00083.

关 键 词：微波介电陶瓷 介电常数 介电损耗 

分 类 号：TQ174.1[化学工程—陶瓷工业]