Starting in July 1971, the Defense Advanced Research Projects Agency (DARPA) sponsored a joint program with the Ford Motor Company to demonstrate and encourage the use of brittle materials in engineering design. The program, which was to be a total systems iterative approach to high temperature strutural design with ceramics in highly stressed applications focused on the development of ceramic components for gas turbine application. A goal of 200 hours of engine or engine rig demonstration for representative duty cycle temperatures in a regenerated vehicular gas turbine was chosen, with uncooled ceramic components to operate at least 25 hours at 2500 F, considerably beyond the temperatures possible with uncooled metal components. The total systems approach included major efforts in ceramic design, materials development fabrication process development, fabrication process development and test and evaluation methodology. Considerable progress was made in each of these areas during the course of the program. For example the strength of reaction bonded silicon nitride (RBSN) used in the stator and rotor blades was more than tripled between July 1971 and July 1977. (DePo)


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    Title :

    Brittle materials design, high temperature gas turbine


    Additional title:

    Hochtemperatur-Fahrzeuggasturbinen aus sproeden Werkstoffen


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

    Published in:

    Publication date :

    1981


    Size :

    234 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. / Bratlon, R.J. | Tema Archive | 1975


    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