J. Phys. I France
Volume 5, Numéro 1, January 1995
Page(s) 129 - 151
DOI: 10.1051/jp1:1995110
J. Phys. I France 5 (1995) 129-151

Structure and Decoration of the Icosahedral and Rhombohedral Phases in AlCuFe Alloys

A. Le Lann and J. Devaud

Centre d'Etudes de chimie Métallurgique - C.N.R.S., 15 rue Georges Urbain, 94400 Vitry sur Seine, France

(Received 29 March 1994, revised 8 September 1994, accepted 19 September 1994)

Structural models for AlCuFe icosahedral and rhombohedral phases are obtained by decomposition, in perpendicular space, of the atomic surfaces into cells of identical local environment. The models are described in 3D real space and compared to the corresponding H.R.E.M. images obtained on structurally perfect icosahedral and rhombohedral phases. The specificity of their aperiodic structure and chemical decoration is outlined.

© Les Editions de Physique 1995

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