Ca1-3xLn2xTiO3(x=0.13, 0.2; Ln=La, Nd, Sm):: High ε microwave dielectric ceramics

被引：0

作者：

Liang Bingliang ^{[1
]}

Zheng Xinghua ^{[1
]}

Ni Weiqing ^{[1
]}

Tang Deping ^{[1
]}

机构：

[1] Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350002, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2007年 / 36卷

关键词：

microwave dielectric ceramics; perovskite; microwave dielectric properties; lanthanides;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of sintered temperature, composition and rare earth ions on the crystal structure and microwave dielectric properties of Ca(1-3x)Ln(2x)TiO(3)(x=0.13, 0.2; Ln=La, Nd, Sm) ceramics were investigated. From the X-ray diffraction patterns, orthorhombic perovskite phase was formed in Ca(1-3x)Ln(2x)TiO(3)(x=0.13, 0.2; Ln=La, Nd, Sm) ceramics, while the secondary phase Sm2Ti2O7 was formed in Ca(1-3x)Ln(2x)TiO(3)(x=0.2; Ln=Sm) ceramic. The microwave dielectric properties of the samples at x=0.13 are better than that of the samples at x=0.2. Ca(1-3x)Ln(2x)TiO(3)(x=0.13, Ln=La, Nd, Sm) ceramics display the microwave dielectric properties as follows: epsilon=119.6, Qf =10 674 GHz, tau(f)=304.4 x 10(-6)/degrees C for Ln=La; epsilon=108.9, Qf =14 919GHz, tau(f) =236.2 x 10(-6)/degrees C for Ln=Nd; epsilon=101.3, Qf =14 485GHz, tau(f)=186.6 x 10(-6)/ degrees C for x=0.13, Ln =Sm.

引用

页码：418 / 421

页数：4

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