Microwave properties of surface modified Fe–Co–Zr alloy flakes with mechanochemically synthesized polystyrene

Synthesis and microwave absorption properties of FeCo nanoplates

“…Up to now, the electromagnetic wave absorption properties of plate-like particles such as MnO 2 -coated Ni and Co nanoplates, Polystyrene coated Fe-Co-Zr alloy flakes, etc. have been studied [17][18][19]. Nevertheless, the effective reflection loss values (RL < −20 dB) are obtained only in a very narrow range.…”

“…The microwave absorption properties of FeCo nanoplates/eposy resin composite were evaluated by simulating reflection loss of the composite backed by a metal plate. The results reveal that the synthesized FeCo nanoplates exhibit much better microwave absorption properties than that of FeCo nanocapsules, Polystyrene coated Fe-Co-Zr alloy flakes, MnO 2 -coated Ni and Co nanoplates [8][9][10][17][18][19]]. …”

Facile synthesis and enhanced electromagnetic wave absorption of thorny-like Fe–Ni alloy/ordered mesoporous carbon composite

“…For example, it is reported that Fe-50 wt.%Ni alloy exhibits adjustable microwave-absorbing properties in the range of 1-18 GHz [10] and the Df eff of FeNi 3 /epoxy composite with the thickness of 1.60 mm can reach 3.6 GHz [11]. The EM properties of flake Fe-Co-Zr alloy of which the surface is modified have also been reported elsewhere [12]. However, the magnetic materials still have some drawbacks in EM properties, such as mismatching EM parameters, high density and high mass filling percentage.…”

Investigation of the Absorption Properties of the Alloys Fe-Ni and Fe-Ni-Cr Prepared by Mechanical Alloying

“…the electrical charge of flaky powders can be more easily polarized; 2. the space-change polarization and the exchange coupling reaction of the magnetic moment between particles are enhanced with increasing surface area; and 3. the eddy current loss is reduced as particle shape changes from spherical to flaky. 23,24 In addition, on the basis of the Landau-LifshitzGilbert (LLG) equation 25 :…”