ScholarWorks@중앙대학교

초록

The demand for electromagnetic interference (EMI) shielding and stealth technologies in aerospace, defense, and next-generation electronics has intensified interest in multifunctional materials. Among them, ceramic-based nanocomposites stand out for their unique electromagnetic properties, thermal stability, and lightweight compatibility. Key mechanisms of EMI attenuation—dielectric loss, magnetic loss, and impedance matching—are highlighted as central to the performance of radar absorbing materials (RAMs). Conductive, dielectric, and magnetic ceramics are evaluated for their distinct contributions to electromagnetic absorption and radar cross-section (RCS) reduction. Particular attention is given to hybrid architectures integrating ceramics with carbonaceous fillers such as carbon nanotubes, graphene, and MXene, which enable broadband absorption and multispectral stealth. Emerging fabrication methods, including electrospinning, thermal spraying, and 3D printing, further enhance performance by tailoring morphology and ensuring scalability. Taken together, these advances position ceramic-based nanocomposites as versatile candidates for next-generation multifunctional shielding and stealth solutions.

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