A co-reduction reaction was proposed to synthesize nanocrystalline intermet
allics Fe3Si and Ni3Al under benzene-thermal conditions, The reactions were
carried out in an autoclave at 450 degrees C using FeCl3 and SiCl4 or NiCl
2 and AlCl3 as reactants, respectively, and metal Na as a reductant. The pr
epared samples were characterized by X-ray diffraction (XRD) and transmissi
on electron microscopy (TEM). The possible formation process and the effect
ive factors of nanocrystalline intermetallic Fe,Si were discussed. (C) 1999
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