Investigation on peak frequency of the microwave absorption for carbonyl iron/epoxy resin composite

被引：200
作者：
Wang, Bochong [1 ]
Wei, Jianqiang [1 ]
Yang, Yong [1 ]
Wang, Tao [1 ]
Li, Fashen [1 ]
机构：
[1] Lanzhou Univ, Inst Appl Magnet, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2011年 / 323卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Microwave absorption; Peak frequency; Quarter-wavelength model; Carbonyl iron; ELECTROMAGNETIC-WAVE ABSORPTION; ABSORBING PROPERTIES; FERRITE; NANOCOMPOSITES;
D O I：
10.1016/j.jmmm.2010.12.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Microwave absorbing characteristics of carbonyl iron/epoxy resin composite with various volume concentrations were investigated in 0.1-18 GHz. According to the electromagnetic parameters and thicknesses of the sample, numerical calculation and experiment have demonstrated that the frequency dependence of the microwave absorption comply with the quarter-wavelength (lambda/4) matching model that may explain not only the peak frequency but also the number of the peaks. It implies that the quarter wavelength condition can be successfully applied to understand and predict the peak frequency of the microwave absorption for ferromagnetic metal-based composites. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1101 / 1103
页数：3
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