Study of Soft/Hard Bimagnetic CoFe²/CoFe²O⁴ Nanocomposite

We report an experimental study of the bimagnetic nanocomposites CoFe 2 /CoFe O 4 . The precursor material, was prepared using conventional stoichiometric combustion method. nano-structured material obtained by total oxygen reduction a thermal treatment at 350 °C in H atmospheres following partial oxidation 380 during 120; 30; 15, 10, and 5 min. X-ray diffraction, Mössbauer spectroscopy transmission electronic microscopy images confirmed formation magnetic hysteresis for nanocomposite with different saturation magnetization (from 87 to 108 emu/g) also confirms content Furthermore, curves all samples presented single behavior, suggesting coupling between phases nanocomposite. effects high energy milling on properties were evaluated.