Microwave Absorption of Double-Layer Absorber Based on Nanocomposite BaFe12O19/α–Fe and Nanocrystalline Alloy Fe0.2(Co0.2Ni0.8)0.8 Microfibers

Hao Shen; Xiang Qian Shen; Min Li; Hong Bo Liu; Zhou Wang

doi:10.4028/www.scientific.net/AMR.1035.339

Paper Titles

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Microwave Absorption of Double-Layer Absorber Based on Nanocomposite BaFe₁₂O₁₉/α–Fe and Nanocrystalline Alloy Fe_0.2(Co_0.2Ni_0.8)_0.8 Microfibers
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1035Microwave Absorption of Double-Layer Absorber...

Microwave Absorption of Double-Layer Absorber Based on Nanocomposite BaFe₁₂O₁₉/α–Fe and Nanocrystalline Alloy Fe_0.2(Co_0.2Ni_0.8)_0.8 Microfibers

Abstract:

In this paper, the prepared nanocomposite BaFe₁₂O₁₉/α-Fe microfibers and nanocrystalline magnetic alloy Fe_0.2(Co_0.2Ni_0.8)_0.8 microfibers are used as absorbents in the double layer structure for microwave absorption. The double layer absorbers with a total thickness of 2.0 mm, in which various matching and absorbing layers are designed, and their absorption properties are estimated. The results show that the absorbers with the matching layer of nanocomposite BaFe₁₂O₁₉/α-Fe microfibers have a very high microwave absorption performance. The absorption bandwidth (the reflection loss (RL) less than-20 dB) reaches 5.8 GHz ranging from 12.2 to 18 GHz, and the minimum RL value is-61.2 dB at about 15.2 GHz with 0.9 mm matching layer and 1.1mm absorbing layer respectively.

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Proceedings of 2014 International Conference on Material Science and Engineering

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Advanced Materials Research (Volume 1035)

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339-343

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https://doi.org/10.4028/www.scientific.net/AMR.1035.339

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October 2014

Authors:

Hao Shen, Xiang Qian Shen*, Min Li, Hong Bo Liu, Zhou Wang

Keywords:

Double-Layer, Electromagnetic Parameter, Microfiber, Microwave-Absorption

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