Titre :

Critical issues on coherent interface energy calculations revisited: The case of Al/TiB2

Auteur(s) :

Besson, Rémy [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Macaluso, Sabrina [Auteur]
Thuinet, Ludovic [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207

Titre de la revue :

Surfaces and Interfaces

Numéro :

33

Pagination :

102272

Éditeur :

Elsevier BV

Date de publication :

2022-10

ISSN :

2468-0230

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Chimie/Matériaux

Résumé en anglais : [en]

Properties of Al/TiB2 heterophase interfaces are investigated by means of atomic-scale calculations. Focusing on practically important (111)Al // (0001)TiB2 basal interfaces, our study allows to clarify various ambiguities ...
Lire la suite >Properties of Al/TiB2 heterophase interfaces are investigated by means of atomic-scale calculations. Focusing on practically important (111)Al // (0001)TiB2 basal interfaces, our study allows to clarify various ambiguities present in the literature when calculating coherent interface energies in non-binary systems: (i) while neglected in earlier works on Al/TiB2, elasticity effects are properly taken into account, (ii) a critical point determining interface stability being related to chemical potentials in ordered compounds, their ranges of values are determined by a careful analysis ensuring TiB2 stability and absence of undesired other phases, and (iii) comparing different simulation systems leads to conclude that periodic boundary conditions should be preferred to free surface ones, frequently used in earlier studies. This work is the first attempt to bring the improvements (i) to (iii) in the same methodology and allows to obtain more realistic values of coherent interface energies than those previously available in the literature.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2022-10-05T13:07:31Z
2022-10-10T07:44:30Z