Investigation on peak frequency of the microwave absorption for carbonyl iron/epoxy resin composite |
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| Authors: | Bochong WangJianqiang Wei Yong YangTao Wang Fashen Li |
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| Affiliation: | Institute of Applied Magnetics, Key Laboratory of Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China |
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| Abstract: | 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 (λ/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. |
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| Keywords: | Microwave absorption Peak frequency Quarter-wavelength model Carbonyl iron |
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