Research Progress on Electromagnetic Wave Absorption of Silicon Carbide-Based Materials
The research of high-performance electromagnetic wave-absorbing materials(WAM)is of great significance to enhance the stealth performance of weapons and equipment and solve the electromagnetic pollution problem.Silicon carbide(SiC)materials have good resistance to high temperature,corrosion and chemical stability,and show good application prospects in the field of electromagnetic wave absorption.However,the intrinsic properties of SiC materials are weak,and how to improve their wave-absorbing properties is an important research topic.Based on the electromagnetic wave-absorbing mechanism of SiC materials,firstly,the research status of SiC-based WAM with different morphologies(core-shell structure,aerogel structure,fibrous structure,hollow structure,MOFs structure,etc.)is analyzed and summarized.In addition,the research progress of composites of SiC with silicon carbide fibres,carbon materials and magnetic substances in the field of wave absorption is introduced in detail.The development status of special types of SiC-based WAM(SiC-based high-temperature WAM,SiC-based wave absorbing metamaterials,and SiC-based multifunctional WAM)is also reviewed.Finally,the future development direction of SiC-based WAM is prospected.
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