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

Table 1

Magnetic properties of ACF, ACF–Fe₃O₄(1), ACF–Fe₃O₄(2), and ACF–Fe₃O₄(3) composites at room temperature.

Samples	Hc (Oe)	Ms (emu/g)	Mr (emu/g)
ACF	207.724	0.021	0.002
ACF–Fe3O4(1)	187.913	3.212	0.392
ACF–Fe3O4(2)	177.258	5.546	0.798
ACF–Fe3O4(3)	175.857	14.435	2.023