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The initial stages of ordering in CuAu I and CuAu II

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Abstract

The initial ordering stages of CuAu have been studied by electron microscopy. At 250° C, in the CuAuI stability range, ordering proceeds fast and initially very little twinning is observed. At 390° C, in the CuAuII stability range, a long incubation time is required before CuAull platelets are nucleated. (1 1 0) twinning takes place immediately after the plate formation and is observed down to the tip of the plate. The fine structure of the periodic antiphase boundaries in CuAuII is studied by HREM; it reveals the disorder along the boundary.

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Authors and Affiliations

  1. RUCA, University of Antwerp, Groenenborgerlaan 171, B2020, Antwerp, Belgium

    G. Van Tendeloo & S. Amelinckx

  2. Department of Metallurgy and Mining Engineering, and Materials Research Laboratory, University of Illinois, Urbana, Illinois, USA

    S. J. Jeng & C. M. Wayman

Authors
  1. G. Van Tendeloo
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  2. S. Amelinckx
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  3. S. J. Jeng
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  4. C. M. Wayman
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Van Tendeloo, G., Amelinckx, S., Jeng, S.J. et al. The initial stages of ordering in CuAu I and CuAu II. J Mater Sci 21, 4395–4402 (1986). https://doi.org/10.1007/BF01106562

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  • DOI: https://doi.org/10.1007/BF01106562

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