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Corrosion pitting of SiC by molten saltsThe corrosion of SiC by thin films of Na2CO3 and Na2SO4 at 1000 C is characterized by a severe pitting attack of the SiC substrate. A range of different Si and SiC substrates were examined to isolate the factors critical to pitting. Two types of pitting attack are identified: attack at structural discontinuities and a crater-like attack. The crater-like pits are correlated with bubble formation during oxidation of the SiC. It appears that bubbles create unprotected regions, which are susceptible to enhanced attack and, hence, pit formation.
Document ID
19870039891
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jacobson, N. S.
(NASA Lewis Research Center Cleveland, OH, United States)
Smialek, J. L.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1986
Publication Information
Publication: Electrochemical Society, Journal
Volume: 133
ISSN: 0013-4651
Subject Category
Inorganic And Physical Chemistry
Accession Number
87A27165
Distribution Limits
Public
Copyright
Other

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