一种测量Ba_xSr_(1-x)TiO_3介电常数的新方法  

A Novel Route to the Dielectric Constant of

作　　者：尹秋艳[1] 陈放[1] 曹玉婷[1] 

机构地区：[1]华东师范大学信息科学与技术学院,上海200062

出　　处：《材料导报》2007年第S2期141-143,共3页Materials Reports

摘　　要：Ba_xSr_(1-x)TiO_3是一种新型的人工合成材料,具有很高的介电常数,其典型值可达数千,用常规方法测量其介电常数误差很大。介绍了一种利用介质谐振器模型来测定其介电常数和损耗角的方法,并用有限元法对其进行了分析。测量结果与文献报道的结果基本一致。BaxSr1-xTiO3 does not exist in nature and is useful because of its high dielectric constant. Accurately measuring its dielectric constant is difficult using traditional methods. This paper presents a simple way to measure high dielectric constant materials. FEM is used to solve the DR problem. Using relative dielectric constant and tgS formulas, we obtained a measured values that are consistent with reference values.

关 键 词：Ba_xSr_1-xTiO₃ 高介电常数 有限元法 

分 类 号：TB302[一般工业技术—材料科学与工程]