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Enhanced electromagnetic and microwave absorption properties of carbonyl iron/Ti3SiC2/epoxy resin coating

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Abstract

Epoxy resin coating with hybrid carbonyl iron (CI)/Ti3SiC2 absorbent is fabricated on aluminium alloy plate. The phase compositions are identified by X-ray diffraction (XRD) and the morphology is characterized by scanning electron microscope (SEM). Electromagnetic and microwave absorption properties of the single layer and double layer CI/Ti3SiC2/epoxy resin coating are investigated in the frequency range from 8.2 to 12.4 GHz. For the hybrid CI/Ti3SiC2 filler, the complex permittivity increases while the complex permeability declines with the rising Ti3SiC2 content. The single layer coating with 20 wt.% Ti3SiC2 and 80 wt.% CI presents the most desirable microwave absorption properties owing to the synergistic effect of dielectric and magnetic loss mechanism. The double layer coating using CI as the matching layer, 20 wt.% Ti3SiC2 and 80 wt.% CI as the dissipating layer, presents better absorption performance than the single layer microwave absorption coating. When the matching layer is 0.6 mm and the dissipating layer is 1.8 mm, the most favorable absorption bandwidth is obtained in the frequency range of 8.5–12.4 GHz with a minimum value of − 18.9 dB at 10.38 GHz.

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Acknowledgements

This work was supported by the PHD Start-up Fund of XPU (BS1615), the Young Talent fund of University Association for Science and Technology in Shaanxi, China (No. 20170521), the Innovative Entrepreneurship Training Program for College Students (No. 201710709035).

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Authors and Affiliations

  1. Xi’an Polytechnic University, Xi’an, 710048, China

    Yi Liu, Xiaolei Su, Jie Xu, Junbo Wang, Xinhai He & Yinhu Qu

  2. Northwestern Polytechnical University, Xi’an, 710072, China

    Fa Luo

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  1. Yi Liu
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  2. Xiaolei Su
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  3. Fa Luo
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  4. Jie Xu
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Correspondence to Yi Liu.

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Liu, Y., Su, X., Luo, F. et al. Enhanced electromagnetic and microwave absorption properties of carbonyl iron/Ti3SiC2/epoxy resin coating. J Mater Sci: Mater Electron 29, 2500–2508 (2018). https://doi.org/10.1007/s10854-017-8172-z

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  • DOI: https://doi.org/10.1007/s10854-017-8172-z

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