Surface Modification of Activated Carbon Fibers with Fe₃O₄ for Enhancing Their Electromagnetic Wave Absorption Property

Figure 8

Frequency dependence on (a) real and (b) imaginary parts of the complex permittivity of samples, (c) real and (d) imaginary parts of the complex permeability, and the (e) corresponding dielectric and (f) magnetic loss tangents of ACF, ACF–Fe₃O₄(1), ACF–Fe₃O₄(2), ACF–Fe₃O₄(3), and Fe₃O₄.

(a)

(b)

(c)

(d)

(e)

(f)