Synthesis and characterization of Fe3Al intermetallic nanopowder by hydrogen arc plasma method (HP)

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ÎÄÕÂÒ³Â룺43 - 47

Key words£ºnanointermetallic£» hydrogen arc plasma method£» phase structure

Abstract: Nanostructured Fe₃Al intermetallic compounds were produced by using hydrogen arc plasma method£¨HP£©. The microstructures of the nano Fe₃Al were characterized by means of XRD, DSC-TG and TEM. The results shows that the intermetallic compounds have ordered B2 structure and the average particle of the as synthesized is about 45¤@nm. The B2 structure changes to highly ordered DO3 structure after annealing in vaccum at 480¤@¡æ. The temperature of phase transformation is 545.3¤@¡æ.