Large microwave absorption By Fe3O4@CuNW hybrid nanoparticles filled epoxy nanocomposites in the X-Band

Review on recent progress in epoxy‐based composite materials for Electromagnetic Interference(EMI) shielding applications

“…26 Generally, more than one mechanism is involved in absorption-based EMI shielding. 27 Absorption-dominated shielding of EM radiation is achieved by designing nanocomposites (NCs) with controlled magnetic and dielectric loss to produce high attenuation. Controlling the mass concentration and localization of fillers, designing the surface morphology and the interfaces also improves the absorption of EM radiation.…”

“…Hybrid EP NCs with a 12:8 ratio of Fe 3 O 4 @-CuNW hybrid nanofillers were fabricated by Bheema and Etika. 27 These NCs possessed high absorption capacity (64%) and low reflection capacity. The NC was 1 mm in thickness and exhibited an EMI SE of 19.3 dB in the X-band frequencies between 8 and 12.4 GHz.…”

“…Magnetic materials predominantly cause absorption due to loss in EM energy by hysteresis, eddy current, polarization, and ferromagnetic losses 26 . Generally, more than one mechanism is involved in absorption‐based EMI shielding 27 . Absorption‐dominated shielding of EM radiation is achieved by designing nanocomposites (NCs) with controlled magnetic and dielectric loss to produce high attenuation.…”

“…This NC was reported to be mechanically and chemically robust with excellent anti‐corrosion properties and recommended for aerospace and marine applications. Hybrid EP NCs with a 12:8 ratio of Fe 3 O 4 @CuNW hybrid nanofillers were fabricated by Bheema and Etika 27 . These NCs possessed high absorption capacity (64%) and low reflection capacity.…”

Optimization of CoFe2O4 nanoparticles and graphite fillers to endow thermoplastic polyurethane nanocomposites with superior electromagnetic interference shielding performance

“…The addition of magnetic llers along with graphite improves the EM wave absorption by adding magnetic losses as well as dielectric and conduction losses within polymer nanocomposites. 19 Spinel ferrites have recently attracted a lot of attention due to their intriguing magnetic properties and chemical stability. 20,21 Because of its remarkable properties such as high magnetocrystalline anisotropy, moderate roomtemperature saturation magnetization, physical and chemical stability, and high Snoek's limit, cobalt ferrite (CoFe 2 O 4 ) has been widely investigated as an EM wave absorber.…”