title: A new stacking motif: complex alloy structures interpreted as modulated structures.
abstract: The structures of lambda-Al4Mn, manganese aluminide, kappa-Al177Cr49Ni, chromium nickel aluminide, and epsilon-Al4Cr, chromium aluminide, which have been described in terms of the aggregation of clusters until now, are interpreted as modulated structures. They are basically composed of close-packed layers with ordered atomic vacancies. The observed stacking motif of the atoms can be found in many phases related to icosahedral and decagonal quasicrystals. This analysis will be helpful in the study of not only many complex alloys, but also quasicrystals.
authors.affiliation: National Institute for Research in Inorganic Materials, Tsukuba, Ibaraki 305-0044, Japan. uchidam@nirim.go.jp
authors.forename: M
authors.initials: M
authors.lastname: Uchida
authors.forename: Y
authors.initials: Y
authors.lastname: Matsui
mesh_terms: D000497:Alloys / Q000737:chemistry*; D000535:Aluminum / Q000737:chemistry; D002857:Chromium / Q000737:chemistry; D008345:Manganese / Q000737:chemistry; D009532:Nickel / Q000737:chemistry
chemical_list: D000497:Alloys; D002857:Chromium; D008345:Manganese; D009532:Nickel; D000535:Aluminum