Exposure of ceramics and ceramic matrix composites in simulated and actual combustor environments

Karren L. More, Peter F. Tortorelli, Mattison K. Ferber, Larry R. Walker, James R. Keiser, Narendernath Miriyala, William D. Brentnall, Jeffrey R. Price

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

    42 Scopus citations

    Abstract

    A high-temperature, high-pressure, tube furnace has been used to evaluate the long term stability of different monolithic ceramic and ceramic matrix composite materials in a simulated combustor environment. All of the tests have been run at 150 psia, 1204°C, and 15% steam in incremental 500 h runs. The major advantage of this system is the high sample throughput; >20 samples can be exposed in each tube at the same time under similar exposure conditions. Microstructural evaluations of the samples were conducted after each 500 h exposure to characterize the extent of surface damage. to calculate surface recession rates, and to determine degradation mechanisms for the different materials. The validity of this exposure rig for simulating real combustor environments was established by comparing materials exposed in the test rig and combustor liner materials exposed for similar times in an actual gas turbine combustor under commercial operating conditions.

    Original languageEnglish
    Title of host publicationManufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
    PublisherAmerican Society of Mechanical Engineers (ASME)
    ISBN (Electronic)9780791878613
    DOIs
    StatePublished - 1999
    EventASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999 - Indianapolis, United States
    Duration: Jun 7 1999Jun 10 1999

    Publication series

    NameProceedings of the ASME Turbo Expo
    Volume4

    Conference

    ConferenceASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999
    Country/TerritoryUnited States
    CityIndianapolis
    Period06/7/9906/10/99

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