Thermodynamic Behavior of Cu-Ni Melts at 1823 K

The thermodynamic behavior of Cu-Ni melts at 1823 K has been analyzed by a statistical model known as molecular interaction volume model. The theoretical data have been compared with the correlated experimental data available in the literature. The theoretical results for excess free energy of mixing, free energy of mixing, activity coefficient and thermodynamic activity exhibit well harmony with the experimental data. The theoretical data of the structural properties like concentration fluctuation illustrate excellent similarities with the experimental values. The short- range order parameter, excess stability function and diffusivity ratio of Cu-Ni melts at 1823 K are also analyzed theoretically. The results indicates the segregating nature of Cu-Ni system at 1823 K.