Cover Page February-2013, Current Issue-Advanced Materials Letters

Advanced Materials Letters

Volume 4, Issue 2, Pages 146-154, February 2013, Current Issue
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Thermodynamical Properties of Equiatomic Liquid Noble Metal Alloys by A Pseudopotential

Aditya M. Vora*

Humanities and Social Science Department, S. T. B. S. College of Diploma Engineering, Shri Swami Atmanand Sarswati Vidya Sankul, Opp. Kapodra Police Station, Varachha Road, Surat 395006, Gujarat, India

Adv. Mater. Lett., 2013, Current Issue, 4 (2), pp 146-154

DOI: 10.5185/amlett.2012.5343

Publication Date (Web): Dec 09, 2012

E-mail: voraam@yahoo.com

Abstract

The Gibbs–Bogoliubov (GB) inequality is applied to investigate the thermodynamic properties of some equiatomic noble metal alloys in liquid phase such as Au-Cu, Ag-Cu and Ag-Au using well known pseudopotential formalism. For description of the structure, well known Percus-Yevick (PY) hard sphere model is used as a reference system. With this procedure the thermodynamic properties such as entropy and heat of mixing have been computed. The influence of local field correction functions viz; Hartree (HR), Taylor (TY), Ichimaru-Utsumi (IU), Farid et al. (FD) and Sarkar et al. (SS) is also investigated and found successful. The computed results of the excess entropy and the heats of mixing compares are found in qualitative agreement with the available experimental or theoretical data in the literature.

Keywords

Gibbs-Bogoliubov inequality, equiatomic liquid noble metal alloys, pseudopotential method, Percus-Yevick hard sphere model, local field correction functions, thermodynamic properties.

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