Microscopic Structure of NaCd Compound Forming Binary Molten Alloys

Sujeet Kumar Chatterjee, Lokesh Chandra Prasad, Ajaya Bhattarai

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DOI: 10.4236/msa.2011.26081                

Abstract

A simple statistical mechanical theory based on compound formation model (compound A_μ B_v formed by the preferential arrangement of A and B constituent atoms of the alloy AB, μA + νB ≒ A_μ B_v) has been used to investigate the phenomena of compound formation in NaCd liquid alloys through the study of concentration fluctuation in the long wavelength region [S_cc(0)] and chemical short range order parameter (α₁). The study explains the observed asymmetry successfully and suggest the existence of Cd₂Na complex in the melt. The tendency of compound has been found to be weak. A tendency of inversion from segregation to order although very small, has been observed, in NaCd liquid alloys.

Keywords

A Simple Statistical Mechanical Theory, Compound Formation Model, Concentration Fluctuation in the Long Wave Length Region [S_cc(0)] and Chemical Short Range Order Parameter (α₁)

Conflicts of Interest

The authors declare no conflicts of interest.

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