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HomeMaterials Science ForumMaterials Science Forum Vol. 989Thermodynamic Modeling of Phase Equilibria in the...

Thermodynamic Modeling of Phase Equilibria in the FeO-MgO-Al₂O₃ System

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Abstract:

Thermodynamic modeling of coordinates of phase diagrams’ liquidus lines of the FeO–MgO, FeO–Al₂O₃, MgO–Al₂O₃ systems and coordinates of phase diagram’s liquidus surface of the FeO–MgO–Al₂O₃ system has been carried out. In the course of work, a thermodynamic model which describes activity of oxide melt had been selected for each of the systems; energy parameters of the model have been determined. Regions of thermodynamic stability of solid phases which are at equilibrium with the oxide melt have been determined. Results of the modeling have been compared with experimental data existing in the literature. Modeling technique has also allowed evaluating enthalpies and entropies of FeAl₂O₄ and MgAl₂O₄ compounds’ formation out of components of the oxide melt. The obtained results are of interest for steelmaking industry processes when determining the melt temperature of a slag containing oxides of iron, magnesium and aluminum.

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Materials Science and Metallurgical Technology II

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Periodical:

Materials Science Forum (Volume 989)

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3-9

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.989.3

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Online since:

May 2020

Authors:

Olga V. Samoilova*, Larisa A. Makrovets

Keywords:

FeO-MgO-Al₂O₃ System, Phase Diagrams, Phase Equilibria, Thermodynamic Modeling

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