One-dimensionally modulated quasicrystal phase related to icosahedral Al-Mn-Pd

A new one-dimensionally modulated quasicrystal phase related to the icosahedral Al-Mn-Pd quasicrystal is described from an alloy with composition o Al Mn Pd annealed at temperatures between 550 and 715 C and 69.8 8.3 21.9 subsequently quenched in water. Systematic tilting experiments reveal that thi...

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Bibliographic Details
Published in:Philosophical magazine letters 1997-02, Vol.75 (2), p.117-124
Main Authors: Haussler, D., Beeli, C., Nissen, H.-U.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Metals. Metallurgy
Physics
Quasicrystals
Semi-periodic solids
Structure of solids and liquids
crystallography
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Description
Summary:A new one-dimensionally modulated quasicrystal phase related to the icosahedral Al-Mn-Pd quasicrystal is described from an alloy with composition o Al Mn Pd annealed at temperatures between 550 and 715 C and 69.8 8.3 21.9 subsequently quenched in water. Systematic tilting experiments reveal that this phase is an icosahedral quasicrystal with a modulation along one of its threefold symmetry axes. It therefore has a trigonal-symmetric Fourier spectrum and a modulation period along the unique threefold axis which corresponds to 15.7 nm. This long-rangeordered phaseis relatedtotheusualF-type icosahedralquasicrystal as well as to the F2 icosahedral quasicrystal which has a P-type icosahedral lattice.
ISSN:0950-0839
1362-3036
DOI:10.1080/095008397179831