Characterization of Composite Based on Al–Cu–Co Alloy

Abstract:

Composite based on Al–Cu–Co alloy obtained by directional solidification, were characterized. The quasicrystalline decagonal D phase of Al₆₄Cu₂₀Co₁₆ was the reinforcement and the singlecrystalline tetragonal T phase of Al₇₂Cu₂₇Co₁ was the matrix of the composite. The phases were identified by powder X-ray diffraction (XRD). The composite was analysed by light optical microscope and electron microscopes. The SEM and TEM techniques were used. Additionally the Laue method was used. The results of the study showed that the reinforcement has a form of parallel fibres of 20-40 μm diameter. Quasicrystal structure of fibres contained the phason strain. The quasicrystalline phase in the form of decagonal columns was also present inside composite pores.

• Periodical: Solid State Phenomena (Volume 186)
• Pages: 226-229
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.186.226
• Online since: March 2012
• Authors: Włodzimierz Bogdanowicz, Jacek Krawczyk, Robert Albrecht
• Keywords: Composite, Quasicrystal, SEM, Solidification, TEM

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