Skip to main navigation Skip to search Skip to main content

Development of Morphology and Stresses in a Class of Thermal Barrier Systems During Thermal Cycling

    Research output: Other contribution

    Abstract

    The morphology and the material properties continuously evolve during the lifetime of a thermal barrier coating. For example, the growth of the thermally grown oxide (TGO) is associated with a range of thermo-mechanical property changes as the system is aged. Accordingly, many failures are related to the TGO formation, where cracks nucleate, propagate and coalesce to eventually cause spallation of the ceramic topcoat. This work treats the development of a system based on Pt-modified aluminde bond coat, which undergoes martensitic transformations.

    Original languageAmerican English
    DOIs
    StatePublished - Jan 1 2003

    Keywords

    • thermal barrier coatings; thermal conductivity; finite element; image digtization; microstructural calculations

    Disciplines

    • Mechanical Engineering

    Cite this