Structural and energetic assessment in cadmium–indium liquid alloys

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 ( 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.

Viscosity of liquid Na-K alloy

“…Application of the approximation to a segregating alloy in particular makes it possible to reproduce closely the observed thermodynamic properties. Over time a great deal of attempt has been devoted on this basis of this approximation to the investigation the mixing properties of liquid alloys [19][20][21][22][23].…”