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Mechanism of UAI3 to UAI4 transformation

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Abstract

The compound, UA14, which forms during the peritectic reaction (Liquid + UA13 → UAI4), has a long needlelike shape and reveals the characteristic morphology of a fishtail when cut along the long axis. When cut perpendicular to the long axis, it shows an internal core of another phase, which has been identified as a primary aluminum solid solution. Because of the interesting relationship between the crystallographic structures of UA13 and UA14, the peculiar UA14 morphology can be explained on the basis of a proposed mechanism. The mechanism of UA13 to UA14 transformation has been identified as shear and diffusion controlled transformation.

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ReferencesReferences

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Authors and Affiliations

  1. Department of Metallurgy, University of British Columbia, Vancouver, B.C.

    Ling Ping Lee (Graduate Student)

  2. University of Missouri-Rolla, 65401, Rolla, Mo.

    H. P. Leighly (Professor of Metallurgical Engineering)

Authors
  1. Ling Ping Lee
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  2. H. P. Leighly
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Formerly Graduate Student, University of Missouri-Rolla

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Lee, L.P., Leighly, H.P. Mechanism of UAI3 to UAI4 transformation. Metall Trans A 6, 135–139 (1975). https://doi.org/10.1007/BF02673681

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  • DOI: https://doi.org/10.1007/BF02673681

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