Study of Energy of Formation for FexNi1-x Liquid Binary Alloys
M. S. S. Chowdhury *
Plasma Physics Division, Atomic Energy Centre, Dhaka-1000, Bangladesh.
Mohammad A. Rashid
Department of Physics, Jashore University of Science and Technology, Jashore-7408, Bangladesh.
M. A. Rahman
Electronics Division, Atomic Energy Centre, Dhaka-1000, Bangladesh.
A. Z. Ziauddin Ahmed
BSB Cambrian Education Group, Dhaka, Bangladesh.
*Author to whom correspondence should be addressed.
Abstract
In this present study we have systematically calculated the free energy of formation for FexNi1-x binary alloys at a thermodynamic state T = 1920 K. A microscopic theory bases on first order perturbation theory along with a reference hard sphere liquid has been applied. The interionic interaction is described by Bretonnet-Silbert local pseudopotential that capable of takes into account the s-d hybridization in electro-ion interaction in transition metals. The effective hard sphere diameters have been determined using linearized Weeks-Chandler-Andersen (LWCA) perturbation theory and the partial structure calculated in line with Ashcroft and Langreths original work. The calculated theoretical value and available experimental data for free energy of formation are in agreement quite satisfactorily.
Keywords: Free energy, energy of formation, liquid binary alloys, Pseudopotential.