The flight test furnace run of the monotectic and syntectic alloys experiment was successfully performed during the Apollo Soyuz Test Project mission. All three experiment cartridges were returned intact. A second ground based test was conducted after the mission to provide one g samples with an equivalent thermal history. The examinations of all flight and ground based cartridges and ampoules have been completed. Encouraging results have been obtained in the preliminary analysis of one flight aluminum antimonide sample as compared to ground based and prototype test counterparts. In terms of reduction of the unwanted second phase, the low g sample shows a homogeneity improvement by a factor of 5 to 20. Preliminary examination of one lead zinc flight sample shows a dispersion of lead in the zinc matrix. However, complete homogenization of the material did not occur. A thermal analysis of flight data shows that the average soak temperature for the head zinc ampoules was 20 C lower than planned but 35 C above the published consolute temperature..


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    Titel :

    Monotectic and syntectic alloys experiment MA-044


    Beteiligte:
    Ang, C. Y. (Autor:in) / Lacy, L. L. (Autor:in)


    Erscheinungsdatum :

    01.02.1976


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Separation Behaviour of Monotectic Alloys

    Ahlborn, H. / Loehberg, K. | British Library Online Contents | 1993


    Directional Solidification Of Monotectic Alloys

    Dhindaw, B. K. / Stefanescu, D. M. / Singh, A. K. et al. | NTRS | 1990


    Nucleation rate in monotectic alloys

    Falk, F. | Elsevier | 1991