Phase Composition and Microwave Dielectric Properties of xLnAlO3-(1-x)Ln1/3NbO3

被引：4
|
作者：
Kong, Q. D. [1 ]
Bian, J. J. [1 ]
Wang, L. [1 ]
Guo, Q. H. [1 ]
Liang, Z. [1 ]
机构：
[1] Shanghai Univ, Dept Inorgan Mat, Shanghai 200072, Peoples R China
来源：
FERROELECTRICS | 2010年 / 407卷
基金：
美国国家科学基金会;
关键词：
xLnAlO3-(1-x)Ln1; 3NbO3; phase composition; microwave dielectric properties; TRANSITION;
D O I：
10.1080/00150193.2010.484690
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The phase composition and microwave dielectric properties of xLnAlO3-(1-x)Ln1/3NbO3 (Ln: LA, Nd, 0 x 0.9) have been investigated by XRD, EDS, SEM and network analyzer in this paper. All samples with x0 exhibited multiple phases. Both of dielectric permittivity and temperature coefficient of resonant frequency decreased with the increase of x when x0.4 and varied little with further increasing x. Q x f value increased with the increase of x. Good combined microwave dielectric properties could be obtained for the samples with x = 0.9: epsilon r = 22.4, Q x f = 49439GHz, f = -30ppm/degrees C for La-series and epsilon r = 21.1, Q x f = 54540GHz, f = -44.8ppm/degrees C for Nd series.
引用
收藏
页码：23 / 30
页数：8
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