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Processing of fused silicide coatings for carbon-based materialsThe processing and oxidation resistance of fused Al-Si and Ni-Si slurry coatings on ATJ graphite was studied. Ni-Si coatings in the 70 to 90 percent Si range were successfully processed to melt, wet, and bond to the graphite. The molten coatings also infiltrated the porosity in graphite and reacted with it to form SiC in the coating. Cyclic oxidation at 1200 C showed that these coatings were not totally protective because of local attack of the substrate, due to the extreme thinness of the coatings in combination with coating cracks.
Document ID
19830018748
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Smialek, J. L. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1982
Subject Category
Nonmetallic Materials
Report/Patent Number
NASA-TM-83362
E-1624
NAS 1.15:83362
Report Number: NASA-TM-83362
Report Number: E-1624
Report Number: NAS 1.15:83362
Meeting Information
Meeting: Ceramic-Metal Systems Div. Conf. of the Am. Ceramic Soc. Meeting
Location: Cocoa Beach, FL
Country: United States
Start Date: January 19, 1983
End Date: January 24, 1983
Accession Number
83N27019
Funding Number(s)
PROJECT: RTOP 505-33-12
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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