The nanocrystalline Fe0.13(CoxNi100−x)0.87 (x = 30, 50, and 80) alloy fiber 50 wt%–epoxy resin composites were prepared by mixing epoxy resin with the alloy fibers. The electromagnetic parameters of the composites were measured using the coaxial line method and the reflection loss was calculated at a frequency range 1–18 GHz. The results show that the nanocrystalline Fe0.13(CoxNi100−x)0.87 alloy fiber–epoxy resin composites have effective microwave absorption characteristics in radar band, which are mainly influenced by the nanocrystalline alloy composition and the composite thickness. This microwave absorption effect largely arises from the eddy current, ferromagnetic resonance, and dielectric loss in the composite.
LiXCGongRZNieYZhaoZSHeHH.Electromagnetic properties of Fe55Ni45 fiber fabricated by magnetic-field-induced thermal decomposition. Mater Chem Phys2005; 94: 408–411.
2.
WuHZhangRLiuXXLinDDPanW.Electrospinning of Fe, Co, and Ni nanofibers: synthesis, assembly, and magnetic properties. Chem Mater2007; 19: 3506–3511.
3.
WuMZHeHHZhaoZSYaoX.Electromagnetic and microwave absorbing properties of iron fibre-epoxy resin composites. J Phys D2000; 33: 2398–2401.
4.
LiXLJiaHS.Microwave absorbing properties of carbonyl iron fiber. J Mater Eng2007; 3: 14–17.
5.
MontielHAlvarezGBetancourtIZamoranoRValenzuelaR.Correlations between low-field microwave absorption and magnetoimpedance in Co-based amorphous ribbons. Appl Phys Lett2005; 86: 072503–1–3.
6.
CheRCPengLMDuanXFChenQLiangXL.Microwave absorption enhancement and complex permittivity and permeability of Fe encapsulated within carbon nanotubes. Adv Mater2004; 16: 401–405.
7.
ZhangXFDongXLHuangHLvBLeiJPChoiCJ.Microstructure and microwave absorption properties of carbon-coated iron nanocapsules. J Phys D Appl Phys2007; 40: 5383–5387.
8.
ShenXQCaoKZhouJX.Preparation of ferromagnetic binary alloy fine fibers by organic gel-thermal reduction process. Trans Nonferrous Met Soc China2006; 16: 1003–1008.
9.
YuMYLiXCGongRZHeYFLuPX.Magnetic properties of carbonyl iron fibers and their microwave absorbing characterization as the filler in polymer foams. J Alloys Compd2008; 456: 452–455.
10.
GoglioGPignardSRadulescuAPirauxLHuynenIVanhoenackerDVandervorstA.Microwave properties of metallic nanowires. Appl Phys Lett1999; 75: 1769–1771.
11.
LvRTKangFYGuJLGuiXCWeiJQWangKLWuDH.Carbon nanotubes filled with ferromagnetic alloy nanowires: lightweight and wide-band microwave absorber. Appl Phys Lett2008; 93: 223105–1–3.
DongXLZhangXFHuangHZuoF.Enhanced microwave absorption in Ni/polyaniline nanocomposites by dual dielectric relaxations. Appl Phys Lett2008; 92: 013127–1–3.
15.
ChenYLiuHXMengXFShenXQ.Preparation and magnetic anisotropy of nanocrystalline Fe0.13(CoxNi1-x)0.87 fine fibers. Acta Metall Sin2009; 45: 754–758.
16.
SugimotoSMaedaTBookDKagotaniTInomataKHommaMOtaH.GHs microwave absorption of a fine α-Fe structure produced by the disproportionation of Sm2Fe17 in hydrogen. J Alloys Compd2002; 330: 301–306.
17.
LiuJGItohMMachidaK-I.Electromagnetic wave absorption properties of α-Fe/Fe3B/Y2O3 nanocomposites in gigahertz range. Appl Phys Lett2003; 83: 4017–4019.
18.
ZhanSHChenDRJiaoXLLiuSS.Facile fabrication of long α-Fe2O3, α-Fe and γ-Fe2O3 hollow fibers using sol-gel combined co-electrospining technology. J Colloid Interf Sci2007; 308: 265–270.
19.
WuMZZhangYDHuiSXiaoTDGeSHHinesWABudnickJITaylorGW.Microwave magnetic properties of Co50/(SiO2)50 nanoparticles. Appl Phys Lett2002; 80: 4404–4406.
20.
LiuXGGengDYZhangZD.Microwave-absorption properties of FeCo microspheres self-assembled by Al2O3-coated FeCo nanocapsules. Appl Phys Lett2008; 92: 243110–1–4.
