SiC-based composites for electromagnetic wave absorption

The development of cutting-edge technologies has put forward more stringent requirements for electromagnetic wave (EMW) absorbing materials, which need to maintain efficient EMW absorption in complex and harsh environments. Silicon carbide (SiC) composites, with their excellent thermal and chemical stability, can maintain efficient EMA absorption even in harsh environments, and have thus attracted widespread attention from researchers. This work first describes the main loss mechanisms of SiC materials, providing a solid theoretical basis for performance optimization. Secondly, the performance advantages brought about by the synergistic effect of SiC-based composite with other materials are highlighted. Finally, the differences between SiC and different materials after composite are summarized and the current problems of SiC-based composites are analyzed, providing ideas for the future design of SiC-based composites.