Health & Environmental Research Online (HERO)


Print Feedback Export to File
473410 
Journal Article 
Modeling of the thermodynamic properties from the surface tension. Part I. Polarized atoms model of the surface area for modeling of the surface tension 
Gasior, W 
2006 
51 
3 
317-326 
English 
The polarized atoms model of the surface layer, the molar surface layer area correction parameters k(r(i)) and k(r) of the liquid metal and alloys and the new definition of the beta parameter describing the relation between the excess G i b b s free energy of the bulk and the surface phase (both dependent on temperature and concentration) are proposed for modeling of the surface tension of the binary liquid alloys. The comparative analyses were conducted for six binary alloys: Ag-Bi, Ag-In, Ag-Sn, Bi-Sn, Pb-Sn and Sb-Sn. It was found that the predicted surface tension using the new, proposed parameters and the H o a r and Melford relation, generally correlates better with the experimental results obtained by the maximum bubble pressure method then by the Butler equation using the constant value of beta = 0.81 and the monoatomic partial molar surface layer areas equal to those of pure liquid metals. 
ag-sn system; phase-diagram; liquid alloys; mixtures; density