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Identifying close-packed planes in complex crystal structures / P.M. Kelly in Acta materialia, Vol. 58 N° 8 (Mai 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 8 (Mai 2010) . - pp. 3091–3095 Titre : Identifying close-packed planes in complex crystal structures Type de document : texte imprimé Auteurs : P.M. Kelly, Auteur ; H.-P. Ren, Auteur ; D. Qiu, Auteur Année de publication : 2011 Article en page(s) : pp. 3091–3095 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Crystal  structure  Modelling  Close-packed  planes  Metals  Intermetallic  compounds Résumé : It is often necessary to identify close-packed or nearly close-packed planes in a crystal. This can be done by inspection in crystal structures where one atom occupies each lattice point – i.e. face-centred cubic and body-centred cubic crystals. However, in more complex crystal structures intuitive inspection becomes rather difficult. The present paper describes a simple method for identifying close-packed or nearly close-packed planes in crystals containing more than one atom per lattice point. The method also distinguishes between “flat” planes, where all the atom centres lie in the plane, and “rumpled” planes, where the atom centres do not lie in the plane. The extent of the departure from true “flatness” can also be estimated. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410000765 [article] Identifying close-packed planes in complex crystal structures [texte imprimé] / P.M. Kelly, Auteur ; H.-P. Ren, Auteur ; D. Qiu, Auteur . - 2011 . - pp. 3091–3095. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 8 (Mai 2010) . - pp. 3091–3095 Mots-clés : Crystal  structure  Modelling  Close-packed  planes  Metals  Intermetallic  compounds Résumé : It is often necessary to identify close-packed or nearly close-packed planes in a crystal. This can be done by inspection in crystal structures where one atom occupies each lattice point – i.e. face-centred cubic and body-centred cubic crystals. However, in more complex crystal structures intuitive inspection becomes rather difficult. The present paper describes a simple method for identifying close-packed or nearly close-packed planes in crystals containing more than one atom per lattice point. The method also distinguishes between “flat” planes, where all the atom centres lie in the plane, and “rumpled” planes, where the atom centres do not lie in the plane. The extent of the departure from true “flatness” can also be estimated. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410000765