Interest of the regular 2-state model for the description of unary liquids: Presentation of the formalism - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Calphad Année : 2023

Interest of the regular 2-state model for the description of unary liquids: Presentation of the formalism

Résumé

The ideal 2-state model is exclusively used for describing the liquid phase in 3 rd generation CALPHAD work. However, not all types of liquids can be described using an ideal 2-state model and for liquids qualified as fragile, a regular 2-state model appears to be a more promising modelling solution. The formalism and phase diagram of the regular model are presented with particular emphasis on the pressure variable. The main characteristics of the regular 2-state model are illustrated through a parametric study and the two test cases of tellurium and water taken from literature studies. The present article suggests that, compared to its ideal counterpart, the regular 2-state model may represent a valuable complementary modeling tool that considerably broadens the spectrum of phenomena that can be described. This model should only be used if it significantly improves the description compared to the ideal model, and its applicability in a multicomponent system should also be verified.

Domaines

Chimie
Fichier sous embargo
Fichier sous embargo
0 0 30
Année Mois Jours
Avant la publication
samedi 1 juin 2024
Fichier sous embargo
samedi 1 juin 2024
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04418890 , version 1 (26-01-2024)

Identifiants

Citer

P. Benigni. Interest of the regular 2-state model for the description of unary liquids: Presentation of the formalism. Calphad, 2023, 83, pp.102627. ⟨10.1016/j.calphad.2023.102627⟩. ⟨hal-04418890⟩
8 Consultations
1 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More