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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. Previously announced in STAR as N83-27019
Document ID
19840036993
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smialek, J. L.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1983
Publication Information
Publication: Ceramic Engineering and Science Proceedings
Volume: 4
ISSN: 0196-6219
Subject Category
Composite Materials
Accession Number
84A19780
Distribution Limits
Public
Copyright
Other

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