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Typical morphology of FeCo-CNTs product. (a) TEM image. (b) HRTEM image.
Magnetic characteristics of different ferromagnetic alloy-filled CNTs. (a) Hysteresis loop. (b) Coercivity . (c) Saturation magnetization .
Electromagnetic wave reflection loss of (a) epoxy matrix and coatings by dispersing (b) FeNi-CNTs, (c) FeCo-CNTs, and (d) FeCoNi-CNTs into epoxy matrix. The coating thickness and area are 2.0 mm and , respectively. Inset is the photo of FeCo-CNTs coating.
Electromagnetic wave absorption characteristics of coatings by dispersing (, FeCo, and FeCoNi) into epoxy matrix. The coating thickness and area are all 2.0 mm and , respectively. Here and are frequency bands in which the reflections are all below and , respectively. and are the minimum reflection value and its corresponding frequency value, respectively.
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