Thermodynamic and structural properties of Mg-Tl liquid alloy
DOI:
https://doi.org/10.3126/bibechana.v8i0.5692Keywords:
Mg-Tl alloy, microscopic structure, pairwise interaction energy, chemical short range orderAbstract
The concentration dependent asymmetry in mixing properties of Mg-Tl liquid alloys at 923 K has been investigated on the basis of regular associated solution model. The concentration of ApB type complex in a regular associated solution of Mg and Tl have been determined. We have then used the concentration of complex to calculate the free energy of mixing, enthalpy of mixing, entropy of mixing, activity, concentration fluctuations in long wavelength limit SCC(0) and the Warren Cowley short-range parameter 1 α .The analysis suggests that heterocoordination leading to the formation of chemical complex Mg2Tl is likely to exist in the melt. The analysis reveals that there is a tendency of unlike atom pairing (Mg-Tl) in Mg-Tl alloy whole range of concentration.
Keywords: Mg-Tl alloy; microscopic structure; pairwise interaction energy; chemical short range order
DOI: http://dx.doi.org/10.3126/bibechana.v8i0.5692
BIBECHANA 8 (2012) 81-89
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