Abstract
The mixing behaviour of liquid cadmium–indium alloys has been analysed on the basis of quasi-chemical approximation by computing thermodynamic parameters, such as free energy of mixing (G M), entropy of mixing (S M), heat of mixing (H M) and chemical activities (a i) and structural functions, such as concentration fluctuation in the long wavelength limit (S cc(0)), the Warren–Cowley short-range order parameter (α 1) and the ratio of diffusion coefficients (D m/D id) of the alloys at 800 K. The analysis suggests that there is a tendency of like atom pairing (Cd–Cd, In–In) in Cd–In alloy over entire concentrations and ordering energy is found to be temperature dependent. Cd–In alloy at 800 K in the molten state is slightly segregating in nature.
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