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Advanced Thermal Barrier and Environmental Barrier Coating Development at NASA GRCThis presentation summarizes NASA's advanced thermal barrier and environmental barrier coating systems, and the coating performance improvements that has recently been achieved and documented in laboratory simulated rig test conditions. One of the emphases has been placed on the toughness and impact resistance enhancements of the low conductivity, defect cluster thermal barrier coating systems. The advances in the next generation environmental barrier coatings for SiCSiC ceramic matrix composites have also been highlighted, particularly in the design of a new series of oxide-silicate composition systems to be integrated with next generation SiC-SiC turbine engine components for 2700F coating applications. Major technical barriers in developing the thermal and environmental barrier coating systems are also described. The performance and model validations in the rig simulated turbine combustion, heat flux, steam and calcium-magnesium-aluminosilicate (CMAS) environments have helped the current progress in improved temperature capability, environmental stability, and long-term fatigue-environment system durability of the advanced thermal and environmental barrier coating systems.
Document ID
20170005680
Document Type
Presentation
Authors
Zhu, Dongming (NASA Glenn Research Center Cleveland, OH United States)
Robinson, Craig (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
June 21, 2017
Publication Date
April 6, 2017
Subject Category
Chemistry and Materials (General)
Report/Patent Number
GRC-E-DAA-TN41357
Meeting Information
US Government Information Exchange Meeting(Aberdeen Proving Ground, MD)
Funding Number(s)
WBS: WBS 109492.02.03.02.02.02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Thermal Barrier and Environmental Barrier Coatings
Impact and environmental stability
SiC-SiC ceramic matrix composites

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