Silicon carbide and sandwich technology have been selected as interesting candidates on order to reach the high performance needed by large telescope mirrors. Aerospatiale has gained from previous programmes an extensive background on design and development of telescope mirrors and also in SiC chemical vapour deposition (CVD). The experience in SiC-CVD, which has been demonstrated on large industrial parts (up to 1 m) is based on process modelling which allows to get very good homogeneous thickness deposit. Thanks to this experience and to availability of industrial facilities (up to 2.5 m), the development of an all silicon carbide sandwich concept has been started. Mechanical analyses performed on this type of solution show a strong decrease of the deformations induced by gravity and interface instabilities compared to other classical open-back structure performance. Preliminary manufacturing feasibility is demonstrated and characterization is in progress.


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    Titel :

    New concepts of silicon carbide mirrors


    Weitere Titelangaben:

    Neue Konzepte bei Spiegeln aus Siliciumcarbid


    Beteiligte:
    Riti, J.B. (Autor:in) / Bailly, B. (Autor:in) / Huiban, T. (Autor:in) / Boursereau, F. (Autor:in) / Capdepuy, B. (Autor:in)


    Erscheinungsdatum :

    1996


    Format / Umfang :

    7 Seiten, 12 Bilder, 2 Tabellen, 4 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    New concepts of silicon carbide mirrors

    Riti, J. B. / Boursereau, F. / Capdepuy, B. et al. et al. | British Library Conference Proceedings | 1996


    New concepts of silicon carbide mirrors

    Riti, J. B. / Boursereau, F. / Capdepuy, B. et al. | British Library Online Contents | 1996


    Silicon Carbide Technologies for Lightweighted Aerospace Mirrors

    Matson, L. / Chen, M. / deBlonk, B. et al. | British Library Conference Proceedings | 2008


    Silicon carbide mirrors benefit high-speed laser scanning

    Carr, K.F. | British Library Online Contents | 2008