Features of the Mackay clusters with and without a center atom in Al based approximants of icosahedral quasicrystals

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The packing features of Mackay and pseudo Mackay clusters in Al based approximants to icosahedral phases are surveyed. The cubic approximants of α-AlMnSi, AlReSi, and α- (Al,Si)CuFe indicate typical Mackay clusters composed by the dense icosahedral shell packing. On the other hand, the cubic approximants of α-AlCuRu and α-(Al,Si)CuFe and the non-cubic approximants of Ir9Al28, χ-AlPdRe, and R-AlPdCo shows so-called pseudo Mackay clusters in which the icosahedral packing feature is disappeared at their first shells. The distorted first shells represent a variation of pseudo Mackay clusters, which could be classified into three subgroups based on the symmetry.

Original languageEnglish
Title of host publicationMaterials Integration
PublisherTrans Tech Publications Ltd
Pages353-356
Number of pages4
ISBN (Print)9783037853764
DOIs
Publication statusPublished - 2012
EventInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011 - Sendai, Japan
Duration: 2011 Dec 12011 Dec 2

Publication series

NameKey Engineering Materials
Volume508
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

OtherInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
CountryJapan
CitySendai
Period11/12/111/12/2

Keywords

  • Approximants
  • Icosahedral phase
  • Mackay clusters
  • Pseudo Mackay clusters
  • Quasicrystals

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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