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STICT model for surface thermodynamics of liquid metal solutions
Author(s) -
Howell W. J.,
Eckert C. A.
Publication year - 1987
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690331005
Subject(s) - surface tension , thermodynamics , surface (topology) , ideal (ethics) , metal , ideal solution , materials science , phase (matter) , chemistry , physics , metallurgy , mathematics , organic chemistry , geometry , philosophy , epistemology
A new model, called STICT for surface thermodynamics using ideal chemical theory, is developed for the surface tension of liquid metal alloys. It uses the Guggenheim approach to relate surface phase properties to those in the bulk. For strongly solvated metal mixtures, ideal chemical theory is used to characterize bulk properties. The STICT model fits experimental data well for the seven systems for which sufficient data exist. Moreover, calculations of bulk and surface true compositions give some guidance to the tailoring of the surface properties of alloys for various applications.