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The thermodynamic reassessment of the binary Al–Cu system

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Abstract

The Al–Cu binary system has been investigated intensively in the past as key binary system for many important industrial alloys. With respect to new experimental results about phase equilibria in Al–Cu system, it was found necessary to prepare new CALPHAD-type thermodynamic description of the Al–Cu system. In course of this work, the known crystallography of several intermetallic phases and the information about site occupations in particular crystallographic positions were implemented in the new thermodynamic phase descriptions. The intermetallic phases were furthermore modelled with all their different temperature modifications. Very good agreement with the experimental results was reached both, for the Al–Cu phase diagram and for the calculated thermodynamic properties, namely the enthalpy of mixing, enthalpies of formation and thermodynamic activities.

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Acknowledgements

This study was supported by the Austrian Science Found (FWF) under the Lisa-Meitner Project M2293-N34.

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Authors and Affiliations

  1. Academy of Science, Institute of Physics of Materials, The Czech Academy of Sciences, Žižkova 22, 616 00, Brno, Czech Republic

    Aleš Kroupa & Ondřej Zobač

  2. Institut für Anorganische Chemie – funktionelle Materialien, Universität Wien, Währinger Straße 42, 1090, Vienna, Austria

    Ondřej Zobač & Klaus W. Richter

Authors
  1. Aleš Kroupa
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  2. Ondřej Zobač
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  3. Klaus W. Richter
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Correspondence to Aleš Kroupa or Ondřej Zobač.

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Kroupa, A., Zobač, O. & Richter, K.W. The thermodynamic reassessment of the binary Al–Cu system. J Mater Sci 56, 3430–3443 (2021). https://doi.org/10.1007/s10853-020-05423-7

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  • DOI: https://doi.org/10.1007/s10853-020-05423-7

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