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Morphology and microstructure of Al−Li−Cu quasicrystals

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Abstract

Solidification microstructure of the stable icosahedral Al5.1 Li3Cu alloy has been studied by scanning electron microscopy. Free surface solidification morphology was found to consist of heavily facetted dendrites with the shape of a triacontahedron. Quasicrystals grew fastest along the five-fold direction and the slowest growing two-fold planes gave rise to the facetted morphology. The differing growth conditions studied revealed the underlying growth mechanism. An epitaxial relationship between cubic and quasicrystalline phases was directly observed.

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Authors and Affiliations

  1. AT&T Bell Laboratories, 07974, Murray Hill, New Jersey, USA

    A. R. Kortan, H. S. Chen, J. M. Parsey Jr & L. C. Kimerling

Authors
  1. A. R. Kortan
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  2. H. S. Chen
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  3. J. M. Parsey Jr
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  4. L. C. Kimerling
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Kortan, A.R., Chen, H.S., Parsey, J.M. et al. Morphology and microstructure of Al−Li−Cu quasicrystals. J Mater Sci 24, 1999–2005 (1989). https://doi.org/10.1007/BF02385413

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  • DOI: https://doi.org/10.1007/BF02385413

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