Abstract
Pure crystalline powders of Al, Pd and Mn have been mechanically alloyed using a conventionally planetary ball mill (Fritsch Pulverisette 7) with the intensity at 7 in an Ar atmosphere and A70Pd30-xMnx (X=5, 10, 15 and 20) alloy powders have been synthesized. The alloying process was examined by X-ray diffractometry. An icosahedral phase quasicrystal with face-centred six=dimensional hypercubic lattice is obtained directly during milling for Al70Pd30-xMnx powders with compositions X=5 and 10. The results are compared with data for liquid-solidified alloys. For Al70Pd30-xMnx powders with compositions X=15 and 20, the formation of quasicrystalline phase is not observed.
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