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A study of morphological stability during directional solidification of a Sn−Bi alloy in microgravity

  • Part II Solidification
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Book cover Materials and Fluids Under low Gravity

Part of the book series: Lecture Notes in Physics ((LNP,volume 464))

Abstract

The morphological stability of the solid-liquid interface in Sn-0.58 at. % Bi alloys was studied during the first MEPHISTO space experiment. The transition from a planar front to a destabilized front, is investigated through the in-situ measurement of the Seebeck voltage between the ends of a directionally solidified sample. This technique allows to precisely detect the instability threshold in steady state conditions as well as during transient stages. Wavelengths and segregation patterns of microstructures corresponding to well-defined distances to threshold are characterized by post mortem analyses. The experimental results are discussed within the frame of the Mullins and Sekerka's theory and 3D non linear calculations.

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Authors and Affiliations

  1. Commissariat à l'Energie Atomique, DTA/CEREM/DEM/SES, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France

    D. Camel

  2. NIST, A153 Materials, 20899, Gaithersburg, MD, USA

    S. R. Coriell

Authors
  1. J. J. Favier
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  2. P. Lehmann
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  3. B. Drevet
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  4. J. P. Garandet
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  5. D. Camel
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  6. S. R. Coriell
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Editor information

Lorenz Ratke Hannes Walter Berndt Feuerbacher

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© 1996 Springer-Verlag Berlin Heidelberg

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Favier, J.J., Lehmann, P., Drevet, B., Garandet, J.P., Camel, D., Coriell, S.R. (1996). A study of morphological stability during directional solidification of a Sn−Bi alloy in microgravity. In: Ratke, L., Walter, H., Feuerbacher, B. (eds) Materials and Fluids Under low Gravity. Lecture Notes in Physics, vol 464. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0102514

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  • DOI: https://doi.org/10.1007/BFb0102514

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60677-2

  • Online ISBN: 978-3-540-49260-3

  • eBook Packages: Springer Book Archive

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