TITLE:
Theoretical Predictions of Thermodynamic Behavior for Cd-Tl Melts at Different Temperatures
AUTHORS:
Nabin Kumar Roy, Anadi Prasad Singh, Rajendra Prasad Chaudhary, Jagdhar Mandal, Indu Shekhar Jha
KEYWORDS:
Excess Free Energy of Mixing, Activity Coefficients, Concentration Fluctuations, Short-Range Order Parameter, MIVM Model
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.16 No.3,
August
31,
2026
ABSTRACT: The molecular interaction volume model is utilized to analyze the composition dependence of thermodynamic properties like Gibbs excess free energy of mixing, free energy of mixing, activity coefficients, activity, microscopic properties such as concentration fluctuations, short-range order parameter and diffusivity ratio of Cd-Tl melts at 750 K. The required interaction parameters are evaluated by Newton-Raphson method using the observed data of activity coefficients of constituent atoms in the infinite dilute solution region. The computed data for excess free energy of mixing, Gibbs free energy of mixing, activity, activity coefficients and concentration fluctuations exhibit excellent harmony with the analogous experimental data for Cd-Tl melts at 750 K. The observed asymmetries in excess free energy of mixing, free energy of mixing and concentration fluctuations for Cd-Tl melts at 750 K are successfully explained. The short-range order parameter and diffusivity relative to the composition for Cd-Tl melts at 750 K are theoretically predicted. The results illustrate the segregating character of Cd-Tl melts at 750 K. Further, the thermodynamic, microscopic and transport properties of Cd-Tl melts at 650 K, 750 K, 850 K, 950 K and 1050 K are predicted theoretically. The segregating behavior of Cd-Tl melts decreases with the elevation in temperature from 650 - 1050 K.