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Solidification of Al65Cu20Co15 and Al65Cu15Co20 alloys

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Abstract

The solidification behavior of Al65Cu20Co15 and Al65Cu15Co20 alloys was studied by means of scanning electron microscopy, energy-dispersive x-ray analysis, powder x-ray diffraction, and differential thermal analysis. Slowly cooled as well as rapidly cooled ingots of both alloys contained a decagonal quasicrystalline phase as dominant phase with additions of several minor normal-crystalline phases. The decagonal phase was found to solidify in a temperature range limited by two peritectic reactions involving phases of CsCl-type structure. Formation of AlCu and Al2Cu phases was also observed.

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Authors and Affiliations

  1. Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, Postfach 1913, Jülich, D-W5170, Germany

    B. Grushko & K. Urban

Authors
  1. B. Grushko
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  2. K. Urban
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Grushko, B., Urban, K. Solidification of Al65Cu20Co15 and Al65Cu15Co20 alloys. Journal of Materials Research 6, 2629–2636 (1991). https://doi.org/10.1557/JMR.1991.2629

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  • DOI: https://doi.org/10.1557/JMR.1991.2629

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