Clustering Effect on the Frequency-Dependent Magnetic Properties of Fe–Co Micro Hollow Fiber Composites

Microwave absorption properties of lightweight and flexible carbon fiber/magnetic particle composites

“…When the concentration of the impregnated solution is greater than 1 times, the RC of CF/FeCoNi from 5.85 to 26 GHz is >À10 dB. This can be explained as the magnetic particle load of the CF surface being able to increase the electromagnetic wave loss, [12][13][14] but as the concentration increases, the density of the magnetic particles on the surface of the carbon ber increases, and the particle size also increases gradually (Fig. 3).…”

“…To mitigate this defect, researchers have used electroplating, co-precipitation, or coating on the surface of carbon materials to load magnetic particles such as carbonyliron, Fe 3 O 4 , Ni, and Fe-Co in order to enhance the absorption properties of the material. [11][12][13][14] It is worth noting that magnetic materials based on Fe, Co, and Ni with better so magnetic properties are coated on CFs, RGO, and CNTs, and other carbon materials, which can effectively combine their advantages, reduce the disadvantages of dielectric loss and magnetic loss in these materials, thus providing a lightweight and wideabsorption-band-absorbing composite material. [15][16][17][18] However, electroplating, chemical plating, and reduction are usually adopted to prepare magnetic coatings on carbon bers.…”