Crystal structure of new approximant phase in Al-Fe-V-Si system

Vladimir I. Ezersky, Avi D. Rochman, Michael M. Talianker

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

A model proposed for the atomic structure of the new hexagonal Al-Fe(V)-Si phase which was found in rapidly solidified Al-Fe(V)-Si alloys is discussed in terms of relation this phase to approximants. The structure of this new phase was described as hexagonal packing of double Mackay icosahedral units similar to those of which the cubic α-(AlFeSi) approximant phase is built up. On the basis of this model the experimental high resolution electron microscopic (HREM) images of the hexagonal phase were successfully interpreted. Like the α phase this structure is characterized by the local icosahedral ordering and can be regarded as an approximant.

Original languageEnglish
Pages (from-to)K421-K426
JournalMaterials Research Society Symposium Proceedings
Volume643
StatePublished - 1 Dec 2001
EventQuasicrystals - Preparations, Properties and Applications - Boston, MA, United States
Duration: 27 Nov 200030 Nov 2000

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