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Representation of thermodynamic properties of multi‐component systems using interaction parameters
Author(s) -
Hajra Jnan P.,
Frohberg Martin G.
Publication year - 1989
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.198901690
Subject(s) - ternary operation , component (thermodynamics) , thermodynamic system , representation (politics) , logarithm , thermodynamics , series (stratigraphy) , thermodynamic equations , range (aeronautics) , boundary (topology) , mathematics , statistical physics , mathematical analysis , materials science , physics , computer science , paleontology , politics , biology , political science , law , composite material , programming language , non equilibrium thermodynamics
Integral excess free energy of a multi‐component – ternary system has been expressed in terms of the Maclaurin infinite series. The series is subjected to appropriate boundary conditions and each of the derivatives correlated to the corresponding interaction parameters. The partial thermodynamic property of component 1 derived by the use of logarithmic functions together with a geometric progression is presented. The equation is found to be capable of interpreting thermodynamic data over a wide compositional range of the ternary system and is independent of compositional paths. An alternative approach for the determination of generalised relations between interaction parameters to that of Lupis and Elliott has been developed.