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Characterization of melt infiltrated SiC/SiC composite combustor liners using meso- and micro-NDE techniques

  • W. A. Ellingson
  • , J. G. Sun
  • , K. L. More
  • , R. Hines

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    3 Scopus citations

    Abstract

    Melt-infiltrated ceramic matrix composite SiC/SiC material systems are under development for use in combustor liners for lowemission advanced gas turbines. Uncertainty in repeatability of processing methods for these large components (33-76 cm diameter), and hence possible reduced reliability for the end user, requires that appropriate test methods, at both meso- and micro-scale, be used to ensure that the liners are acceptable for use. Nondestructive evaluation (NDE) methods, if demonstrated to reliably detect changes caused by processing, would be of significant benefit to both manufacturer and end user. This paper describes the NDE methods and their applications in detecting a process upset in a melt-infiltrated 33 cm combustor liner and how high-resolution scanning electron microscopy was used to verify the NDE data.

    Original languageEnglish
    Title of host publicationManufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education
    PublisherAmerican Society of Mechanical Engineers (ASME)
    ISBN (Electronic)9780791878576, 9780791878576
    DOIs
    StatePublished - 2000
    EventASME Turbo Expo 2000: Power for Land, Sea, and Air, GT 2000 - Munich, Germany
    Duration: May 8 2000May 11 2000

    Publication series

    NameProceedings of the ASME Turbo Expo
    Volume4

    Conference

    ConferenceASME Turbo Expo 2000: Power for Land, Sea, and Air, GT 2000
    Country/TerritoryGermany
    CityMunich
    Period05/8/0005/11/00

    Funding

    The authors acknowledge the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of Industrial Technologies, Continuous Fiber Ceramic Matrix Composites (CFCC) and Advanced Turbine Systems Programs for supporting this work, which was conducted under Contract W-31-109-Eng-38.

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