The program objective is to demonstrate successful use of brittle materials in high temperature structural applications. A small vehicular gas turbine and a large stationary gas turbine, each using uncooled ceramic components, will be utilized in this program. In the vehicular turbine project, a major program milestone comprising a 100 hour durability test of the stationary ceramic hot flow path components in an engine was completed. In the fabrication of ceramic turbine rotors, significant improvement in bonding the components of the silicon nitride duo density rotor resulted when hot pressing of the shaped hub was combined with press bonding to the blade ring. Spin testing of seven hot pressed silicon nitride rotor hubs, with burst speeds ranging from 102000 to 120000 rpm, confirmed that this material was adequate for rotor requirements. A silicon carbide combustor tube has been successfully tested in a combustor rig for a total of 171 hours, including 20 hours at an outlet temperature of 2500 F. In the stationary turbine project, static rig testing of hot pressed silicon nitride and silicon carbide stator vanes up to 2500 F.


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    Title :

    Brittle materials design, high temperature gas turbine


    Additional title:

    Verwendung sproeder Werkstoffe fuer die Konstruktion von Fahrzeuggasturbinen


    Contributors:
    McLean, A.F. (author) / Fisher, E.A. (author) / Bratlon, R.J. (author)

    Published in:

    Publication date :

    1975


    Size :

    201 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




    Brittle materials design, high temperature gas turbine

    McLean, A.F. / Fisher, E.A. | Tema Archive | 1981


    Brittle materials design, high temperature gas turbine

    McLean, A.F. / Fisher, E.A. | Tema Archive | 1981


    Proof testing in design with brittle materials.

    BARNETT, R. L. / HERMANN, P. C. | AIAA | 1965



    High Temperature Turbine Design Considerations

    Suciu, S.N. | Emerald Group Publishing | 1970