The research of EM wave absorbing properties of ferrite/silicon carbide double coated polyester woven fabric
2018
Liu, Yuanjun | Liu, Yuanchen | Zhao, Xiaoming
In this paper, polyester woven fabric was selected as the fundamental fabric. Ferrite and silicon carbide were the underlying and surface layer absorbing agents, respectively. The influence of the content of the ferrite and silicon carbide absorbent and coating thickness on dielectric constant were discussed. Through the optimization of electromagnetic parameters, ferrite/silicon carbide double-coating polyester woven fabric absorbing materials with the best wave absorption performance were prepared. The results showed that through optimization, at high frequency (10 ⁵ Hz < f < 10 ⁷ Hz), when the ferrite content was 60%, the ferrite coating (bottom layer) had a thickness of 1.00 mm, the amount of silicon carbide was 48%, the silicon carbide coating layer (surface layer) was 0.50 mm, and the coated fabric had the best absorbing performance.
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