Thermodynamic Analysis of Metastable (Ag-Cu) Binary Alloy System Using Calphad Method | [Pakistan Journal of Scientific and Industrial Research (Series A: Physical Sciences) • 2022]

Author(s):

1. Jamshed Khan: Department of Physics, University of Science and Technology Bannu,Bannu , Khyber Pakhtunkhwa,Pakistan

2. Dil Faraz Khan: Department of Physics, University of Science and Technology Bannu,Bannu Khyber Pakhtunkhwa,Pakistan

3. Waseem Ullah Shah: Department of Physics, University of Science and Technology Bannu,Bannu , Khyber Pakhtunkhwa,Pakistan

4. Abdul Manan: Department of Physics, University of Science and Technology Bannu,Bannu, Khyber Pakhtunkhwa,Pakistan

5. Imran Khan: Department of Physics, University of Science and Technology Bannu,Bannu 28100, Khyber Pakhtunkhwa,Pakistan

6. Haiqing Yin: School of Material Science and Engineering, University of Science and Technology Beijing,Beijing , P.R,China

7. Athanasios G. Mamalis: Project Centre for Nanotechnology and Advance Engineering (PC-NAE), NCSR\Demokritos,Athens,Greece

Abstract:

This paper shows the thermodynamic analysis and predictions of metastable binary alloy silvercopper (Ag-Cu) system using the Calphad approach. The thermodynamic analysis involves the calculation of phase diagram, Gibbs energy of mixing, excess Gibbs energies, thermodynamic molar activities and coefficient of activities, partial and integral values of enthalpy for (Ag-Cu) alloy system at three elevated temperatures, (1973 K, 2000 K, 2028 K). The given alloys show positive deviation from Vegard's law, Henry's law and corresponding good negative deviation from Raolts's law ideal Gibbs curve. The activity simulation of the adding compositions are seen good attractive interaction for best doping characteristics. The alloy is seen equilibrium fluctuation and good stability.

Page(s): 199-206

DOI: DOI not available

Published: Journal: Pakistan Journal of Scientific and Industrial Research (Series A: Physical Sciences), Volume: 65, Issue: 3, Year: 2022

Keywords:

calphad method , thermodynamic analysis , mieddema approach

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