Preparation of Manganese Ferrite Powders by Mechanochemical Process

Ju Hua Luo

doi:10.4028/www.scientific.net/AMR.284-286.2268

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Preparation of Manganese Ferrite Powders by Mechanochemical Process
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Preparation of Manganese Ferrite Powders by Mechanochemical Process

Abstract:

Mn-ferrite powders were prepared by mechanochemical treatments using MnO₂ and Fe₂O₃ as raw materials. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM) were employed to evaluated the morphologies and structures of samples. The results indicated that the starting mixture became amorphous stage after ball-milled for 40h, and single phase MnFe₂O₄ could be obtained after annealed at 1200°C for 2h. In comparison with the traditional firing method , the mechanochemical method benefited achieving the higher saturation magnetization, which indicated that the samples had a better magnetic properties.