CONCENTRATION-DEPENDENCE OF THE STRUCTURE OF LIQUID LI-NA AND LI-MG ALLOYS

Theoretical calculations are presented for the static structure and or dering properties of the Li-Na and Li-Mg liquid alloys. The neutral ps eudoatom method is used to derive the interatomic pair potentials and the modified hypernetted chain approximation to obtain the static stru cture. As a result the overall theory is free of adjustable parameters . Although the two alloys show rather different experimental behaviour , the present theoretical approach is able to reproduce the main struc tural features of both.