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Development of Nondestructive Evaluation Methods for Ceramic Coatings.

DE200243589

Publication Date	2002
Personal Author	Ellingson, W. A.; Deemer, C.; Sun, J. G.; Erdman, S.; Muliere, D.
Page Count	12
Abstract	Nondestructive evaluation (NDE) methods are being developed for use with ceramic coatings for components in the hot-gas path of advanced gas-fired turbine engines with low emissions. Two types of coatings are being studied: thermal barrier coatings (TBCs), which are under development for vanes, blades, and combustor liners to allow hotter gas-path temperatures, and environmental barrier coatings (EBCs), which are under development to reduce environmental damage to high temperature components made of ceramic matrix composites. The NDE methods will be used to (1) provide data to assess the reliability of new coating application processes, (2) identify defective components that could cause unscheduled outages, (3) track growth rates of defects during use in engines, and (4) allow rational judgment for replace/repair/re-use decisions of components.
Keywords	Ceramics Coatings Nondestructive tests Combustors Defects Evaluation Field tests Oxides Thermal barriers Topography Turbines Vanes
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200223

Development of Nondestructive Evaluation Methods for Ceramic Coatings.

Development of Nondestructive Evaluation Methods for Ceramic Coatings.
DE200243589

Publication Date	2002
Personal Author	Ellingson, W. A.; Deemer, C.; Sun, J. G.; Erdman, S.; Muliere, D.
Page Count	12
Abstract	Nondestructive evaluation (NDE) methods are being developed for use with ceramic coatings for components in the hot-gas path of advanced gas-fired turbine engines with low emissions. Two types of coatings are being studied: thermal barrier coatings (TBCs), which are under development for vanes, blades, and combustor liners to allow hotter gas-path temperatures, and environmental barrier coatings (EBCs), which are under development to reduce environmental damage to high temperature components made of ceramic matrix composites. The NDE methods will be used to (1) provide data to assess the reliability of new coating application processes, (2) identify defective components that could cause unscheduled outages, (3) track growth rates of defects during use in engines, and (4) allow rational judgment for replace/repair/re-use decisions of components.
Keywords	Ceramics Coatings Nondestructive tests Combustors Defects Evaluation Field tests Oxides Thermal barriers Topography Turbines Vanes
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200223