NANCYUN: a Laboratory Tool for Calculation of Binary Systems

The coherency between any new experimental thermodynamic determination and the results already known may be evaluated with the computer program NAANCYUN in the case of binary systems. The various necessary data and the mathematical formalism used to represent the phases are presented. In addition to that thermodyanmic description of the system, the experimental observations made by Darken on many liquid phases are translated into conditions between the adjustable coefficients used to represent a phase. These supplementary conditions are detailed and their interest is shown. As an example of the possibilities of NANCYUN, the results obtained in the study of the Mg--Ga system are presented.