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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    Title :

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


    Contributors:
    Rouzaud, A. (author) / Favier, J.J. (author) / Thévenard, D. (author)

    Published in:

    Publication date :

    1989-01-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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