Thermodynamic models axe used to correlate the bulk and surface properties
of mixing of Ga-(Bi,In) and In-Bi liquid alloys. It provides useful insight
into the energetics of binary alloys (Ga-Bi, Ga-In and In-Bi) which are co
nstituent components of ternary Ga-In-Bi alloys. The positive deviation of
the properties of Ga-Bi and Ga-In alloys from the ideal mixing condition an
d negative deviation for In-Bi are discussed in terms of the interaction en
ergies and hence a consistent set of different thermodynamic functions are
obtained as a function of composition. Our calculations indicate that the s
urface of Ga-Bi is richer with Bi- atoms than in In-Bi. However, in atoms s
egregate to the surface of the Ga-In alloys.