Abstract Keeping planar the L/S interface during solidification and controling heat and mass transfers in the liquid phase are 2 important constraints which need to be satisfied to grow suitable single crystals. In the first part of this paper we describe performances of the MEPHISTO instrument which allows : — On line in-situ measurements of the real undercooling of a solidification front by a non-perturbative thermoelectric method. — On line supervision of convective motions influence on crystal growth. In the second part, we present the first main results obtained during the ground testing of the space mock-up and we quantify the scientific results accuracy concerning both the onset of the morphological stability and the interface response to unsteady perturbations.


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    Titel :

    A space instrument for fundamental materials science problems: The MEPHISTO program


    Beteiligte:
    Rouzaud, A. (Autor:in) / Favier, J.J. (Autor:in) / Thévenard, D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1989


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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