Instability of Al‐Cu‐Co single quasicrystals at low temperature | Zendy

Bogdanowicz W. | Zendy

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Instability of Al‐Cu‐Co single quasicrystals at low temperature

Author(s) -

Bogdanowicz W.

Publication year - 2005

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.200410371

Subject(s) - quasicrystal , annealing (glass) , crystallography , decomposition , bar (unit) , optical microscope , materials science , electron microscope , microscopy , scanning electron microscope , chemistry , optics , composite material , physics , organic chemistry , meteorology

Decomposition process of the Al‐Cu‐Co single quasicrystals (falling apart into small pieces) after annealing at 100 °C for 20 h was studied by X‐ray topography, high‐resolution electron microscopy, X‐ray diffractometry and optical microscopy. It was found that the decomposition of the single quasicrystals is preceded by the creation of a large number of antiphase microdomains and the deformation of the clusters occurs in the two‐fold directions of [01 $\bar 1$ 00] type. The decomposition begins with the propagation of cracks in the directions of [01 $\bar 1$ 00] type. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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