Microwave Dielectric Properties of 0.95Ca(0.85)Nd(0.1)TiO(3)-0.05LnAlO(3) (Ln=Sm, Dy, Er) Ceramics

被引：0

作者：

Kim, Eung Soo ^{[1
]}

Jeon, Chang Jun ^{[1
]}

机构：

[1] Kyonggi Univ, Dept Mat Engn, Suwon 443760, South Korea

来源：

JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2007年 / 44卷 / 10期

关键词：

Ca0.85Nd0.1TiO3; LnAlO(3)(Ln=Sm; Dy; Er); Bond valence; Microwave dielectric properties;

D O I：

10.4191/kcers.2007.44.1.537

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microwave dielectric properties of 0.95Ca(0.85)Nd(0.1)TiO(3)-0.05LnAlO(3) (Ln=Sm, Dy, Er) were investigated as a function of sintering temperature and lanthanide ion type. A single perovskite phase with an orthorhombic structure was obtained throughout the entire range of composition. The dielectric constant (K) was dependent upon the dielectric polarizabilities and the B-site bond valence in the ABO(3) perovskite structure. The quality factor (Qf) of the specimens with ErAlO3 was smaller than those with SmAlO3 and/or DyAlO3 due to the smaller grain size. The temperature coefficient of resonant frequency (TCF) could be controlled from 107.28 ppm/degrees C at Ln = Sm to 87.23 ppm/degrees C at Ln=Er due to the changes of B-site bond valence in the ABO(3) perovskite structure.

引用

页码：537 / 541

页数：5

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