Articles liés à Thermodynamic reassessment of the Cerium-Gold binary...

Thermodynamic reassessment of the Cerium-Gold binary system - Couverture souple

Moustaine, Dris; Mahdouk, Kamal

 
9783330018068: Thermodynamic reassessment of the Cerium-Gold binary system
Couverture souple
ISBN 10 : 3330018062 ISBN 13 : 9783330018068
Editeur : LAP LAMBERT Academic Publishing, 2017

Synopsis

In the submitted work, we present the results of a thermodynamic optimization of the Ce–Au system using a selected experimental data from literature and appropriate thermodynamic models to describe each phase of the studied system. The thermodynamic parameters involved in the models are optimized using the PARROT module of the Thermo–Calc software and confronted to the available data in the literature. In this work, the excess Gibbs energies functions of the Ce–Au solution phases including liquid, fcc, bcc, and hcp were formulated with Redlich–Kister polynomial functions. The two–sublattice energy model was employed to describe the intermetallic compound CeAu which exhibit a homogeneity range, while all the intermetallic compounds Ce2Au, Ce9Au11, CeAu2, Ce14Au51, and CeAu6 were treated as stoichiometric compounds. A set of self–consistent thermodynamic parameters formulating the Gibbs energies of Ce–Au phases were finally obtained. More recently, a new version of Ce–Au phase diagram was published by Okamoto. In this version the Ce3Au4 compound was reported by a dashed line, because no evidence of this phase was shown in the investigation of an isothermal section of Ce–Sn–Au ternary.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

In the submitted work, we present the results of a thermodynamic optimization of the Ce–Au system using a selected experimental data from literature and appropriate thermodynamic models to describe each phase of the studied system. The thermodynamic parameters involved in the models are optimized using the PARROT module of the Thermo–Calc software and confronted to the available data in the literature. In this work, the excess Gibbs energies functions of the Ce–Au solution phases including liquid, fcc, bcc, and hcp were formulated with Redlich–Kister polynomial functions. The two–sublattice energy model was employed to describe the intermetallic compound CeAu which exhibit a homogeneity range, while all the intermetallic compounds Ce2Au, Ce9Au11, CeAu2, Ce14Au51, and CeAu6 were treated as stoichiometric compounds. A set of self–consistent thermodynamic parameters formulating the Gibbs energies of Ce–Au phases were finally obtained. More recently, a new version of Ce–Au phase diagram was published by Okamoto. In this version the Ce3Au4 compound was reported by a dashed line, because no evidence of this phase was shown in the investigation of an isothermal section of Ce–Sn–Au ternary.

Biographie de l'auteur

Dris Moustaine was born in Morocco. He has a MA in “Engineering Materials, Energy and Environment”. Currently, he is on the blink of getting a Ph.D. in Metallurgy. He is assistant teacher of “geometrical optics, electricity, mechanics, thermodynamics” at the University of Ibn Zohr in Agadir. He has participated in several international conferences.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2017
Langue
anglais
ISBN 10 
3330018062
ISBN 13 
9783330018068
Reliure
Broché
Nombre de pages
52
Coordonnées du fabricant
non disponible
Personne responsable
info@bod.de
info@bod.de

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