A DRET-funded programme was begun six years ago with a view to promoting silicon-based ceramics for heat engines. This programme resulted in the fabrication of sintered SiC parts which were fixed to diesel engine pistons. Pellets were made and mounted on a piston cap so that the ceramic and the metal-ceramic junction could be tested in engine combustion conditions. The engine was run for a few hundred hours with a variable rating using a heavy-loaded fuel. Inasmuch as pellets and junctions suffered no apparent major damage a silicon carbide-Nimonic composite needle was fixed in a piston and run in a variable geometry chamber. The design and method of making this piston needle is presented, with emphasis on the care taken with temperature and stress distribution. Qualitative observations are reported following the engine-testing of such a piston needle.


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    Title :

    Introduction of sintered alpha-SiC in Diesel engines. Example of French experiment


    Additional title:

    Einfuehrung von gesintertem alpha-SiC in Dieselmaschinen. Beispiel eines Franzoesischen Experiments


    Contributors:
    Broussaud, D. (author) / Wicker, A. (author) / Magnet, J.L. (author)


    Publication date :

    1981


    Size :

    8 Seiten


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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