Energetics and local order in In-based liquid alloys

Authors

  • RP Koirala University Department of Physics, T.M. Bhagalpur University, Bhagalpur, India; Department of Physics, M.M.A.M. Campus, Biratnagar, Tribhuvan University
  • BP Singh University Department of Physics, T.M. Bhagalpur University, Bhagalpur
  • IS Jha Department of Physics, M.M.A.M. Campus, Biratnagar, Tribhuvan University
  • D Adhikari Department of Physics, M.M.A.M. Campus, Biratnagar, Tribhuvan University http://orcid.org/0000-0002-6022-3615

DOI:

https://doi.org/10.3126/bibechana.v13i0.13359

Keywords:

Liquid alloys, Self association model, Order energy, Segregation

Abstract

A comparative study has been carried out to understand the concentration dependence of thermodynamic properties such as, free energy of mixing, heat of mixing, entropy of mixing, activity  and microscopic properties, such as concentration fluctuation in long wavelength limit  and Warren-Cowley short range order parameter  of  In-based three liquid alloys (In-Pb , In-Tl and In-Zn) on the basis of self-association model. The analysis reveals that self-association model successfully explains the observed properties of the liquid alloys.  Positive deviation of the thermodynamic properties of the alloys from the Raoultian solution behaviour indicates that the alloys are weakly segregating in nature. The comparative assessment of the interaction energy and the microscopic properties suggests that the degree of segregation is greatest in In-Zn alloy and comparable in In-Pb and In-Tl alloys.

BIBECHANA 13 (2016) 60-71

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Published

2015-12-03

How to Cite

Koirala, R., Singh, B., Jha, I., & Adhikari, D. (2015). Energetics and local order in In-based liquid alloys. BIBECHANA, 13, 60–71. https://doi.org/10.3126/bibechana.v13i0.13359

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Section

Research Article