Crystal Research and Technology
Cryst. Res. Technol. 38, 307 (2003) - Abstract -

Deformation of decagonal Al-Cu-Co single quasicrystals

W. Bogdanowicz

Institute of Physics and Chemistry of Metals, University of Silesia, ul. Bankowa 12, 40-007 Katowice, Poland

Keywords    plastic deformation, Al-Cu-Co single quasicrystal, domains

Deformation process of decagonal single quasicrystals of Al-Cu-Co alloy was studied by X-ray topography and optical microscopy. The deformation was performed at elevated temperature (550ºC) not higher than the temperature of disordering transformation of clusters inside anti-phase domains (600ºC). It was found that at a deformation of about 3–5% glide occurs only in the direction of ten-fold symmetry axis in which the boundaries of anti-phase domains are arranged. At a deformation of about 7–9% the samples cracked.



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