ORDERING POTENTIALS - ANOMALOUS STRUCTURAL AND THERMODYNAMIC PROPERTIES OF LIQUID BINARY-ALLOYS

The ab initio calculations of ordering potentials are presented for ty pical binary liquid alloys. The nature of the ordering potential in an d around the unlike nearest-neighbour region decides the sign of the o rdering energy and this in turn indicates whether the concentration fl uctuation is exhibited or inhibited at the particular concentration. S uch fluctuations strongly influence the structural and thermodynamic p roperties of the alloy systems. A few such liquid alloys are considere d and their behaviours explained. (C) 1998 Elsevier Science B.V. All r ights reserved.