STP1371: New Testing Facility and Concept for Life Prediction of TBC Turbine Engine Components

    Marci, G
    Senior Scientist, Institute for Materials Research, DLR-German Aerospace Research Center, Cologne,

    Mull, KM
    Technical Specialist, Institute for Materials Research, DLR-German Aerospace Research Center, Cologne,

    Sick, C
    Technical Specialist, Institute for Materials Research, DLR-German Aerospace Research Center, Cologne,

    Bartsch, M
    Scientist, Institute for Materials Research, DLR-German Aerospace Research Center, Cologne,

    Pages: 8    Published: Jan 2000


    Abstract

    A thermo-mechanical test facility is presented which enables testing of a cylindrical specimen under thermal and mechanical loading conditions which closely simulate the conditions in an aircraft engine. The principal features of the test facility are described. They include thermal shock during start-up and shut-down of an engine and cyclic loads comprising holdtimes simulating the loading conditions during a usual flight of an aircraft. For such conditions, the life of physical vapor deposit (PVD) thermal barrier coatings (TBC) should be determined. A concept for life predictions for TBCs based on some minimum test results is presented.

    Keywords:

    testing facility, turbine engine simulation, blade material, thermo-mechanical loading, life prediction, thermal barrier coating


    Paper ID: STP15267S

    Committee/Subcommittee: E08.03

    DOI: 10.1520/STP15267S


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