High-Frequency Magnetic Properties of Glass-Reinforced Plastic Laminate with Deposited Functional Thin-Film Coating Based on (Co40Fe40B20)60(SiO2)40 Nanocomposite

Resumo

Abstract—The magnetostatic and magnetodynamic properties of laminated materials based on glass-reinforced plastic laminate coated with magnetic (Co₄₀Fe₄₀B₂₀)₆₀(SiO₂)₄₀ nanocomposite are studied. The modified magnetic composite structural materials based on glass fiber are characterized by hysteresis with a low coercivity and magnetic shape anisotropy related to fiber geometry. No significant absorption of electromagnetic radiation was observed in the range of frequencies of natural ferromagnetic resonance, except for the bulk composite sample, where minor peaks at 3 and 5 GHz were detected. In the variation in the coefficient of electromagnetic radiation transfer versus frequency curves, the signal intensity is substantially attenuated at 6–12 GHz owing to dielectric loss in the composite film.