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Thermodynamic And Structural Behaviour Of liquid Al-Ga Alloys

R.P. Koirala, B.P. Singh, I.S. Jha and D. Adhikari

Volume 4, Issue 4, Page 283-287, Year 2013, Current Issue | DOI: 10.5185/amlett.2012.8412

Keywords: Binary alloy; quasi-chemical approximation; structural properties; segregating system.

Abstract: 

Quasi-chemical approximation has been used to study the mixing behaviour of liquid aluminium-gallium binary alloys by computing thermodynamic functions, such as free energy of mixing, heat of mixing, entropy of mixing, activity and microscopic functions, such as concentration fluctuation in long wavelength limit (Scc(0)), Warren-Cowley short range order parameter () and  ratio of diffusion coefficients of the  alloys at 1023 K.  The theoretical analysis reveals that the ordering energy is found to be temperature dependent and Al-Ga alloy in molten state is slightly segregating. Copyright © 2013 VBRI press.

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