Abstract
The peanut shell-like SiC fibers were prepared in order to improve the electromagnetic wave absorption properties. The phase of fibers was mainly β-SiC and less amorphous SiO2. The peanut shell-like holes with the average size of 89 nm appeared in the surface of SiC fibers. Their optimal reflection loss was high as −48 dB at 11.1 GHz as absorber thickness was 2.53 mm. The SiC fibers exhibit excellent electromagnetic wave absorption ability in X-band. It was attributed to the fibers’ biomimetic structure, which caused the microwave multiple reflection, scattering and Debye relaxation.
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