A new approach to the synthesis of nanostructured Fe3Al alloy and aluminum doped iron oxide material

Aluminum doped iron oxide nanostructured material with hematite phase has been produced by the heat-treatment process of an amorphous precursor under air atmosphere. The nano sized precursor was synthesized by using a co-precipitation method. The heat-treated product of the precursor under reduction atmosphere was Fe3Al alloy with particle sizes around 200 nm. Powder X-ray diffraction pattern and Fourier transform infrared spectroscopy confirmed the formation of the products. That is, the intermetallic alloy, Fe3Al has really produced via a wet chemical route for first time. Magnetic measurements indicated that all the samples are soft magnets with different magnetization.

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► For first time, Fe3Al alloy nanomaterial was synthesized via an amorphous precursor.
► Heat-treating processes of the precursor produced two type materials.
► Fe3Al intermetallic alloy under reduction atmosphere.
► Aluminum doped iron oxide nanomaterial under oxidation atmosphere.