Abstract
The authors present a simple model for the structure and thermodynamics of liquid alloys with strong chemical interactions. Starting from the fact that these systems are characterised by the existence of a non-vanishing ordering potential phi CC=c1c2( phi 11+ phi 22-2 phi 12), the authors model the interatomic potentials by a hard-sphere potential for the mean pair interaction phi NN=c12 phi 11+c22 phi 22+2c1c2 phi 12 and a hard-sphere potential of the same diameter plus a Yukawa tail for phi CC. The volume forces are calculated in an electron-gas model. Based on the solution of this model in the mean spherical approximation, the authors find analytic expressions for the thermodynamic excess functions and the partial structure factors. They have applied their model to liquid Li-Pb, Li-Ag and Li-Mg alloys and find very good results for the heat and the entropy of formation and good agreement between their structure data and neutron scattering experiments.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.