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Effect of silicon carbide on devitrification of a glass coating for reusable surface insulationDevitrification (nucleation and growth of cristobalite) were investigated in the LI-0042 coating used for the space shuttle surface insulation. Excessive devitrification was found to be associated with the silicon carbide (SiC) constituent in the coating. Test results show that significant devitrification occurred only when SiC was present in the coating and when the thermal-exposure atmosphere was oxidizing.
Document ID
19780025287
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Ransone, P. O. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1978
Subject Category
Nonmetallic Materials
Report/Patent Number
NASA-TM-78755
L-12069
Report Number: NASA-TM-78755
Report Number: L-12069
Accession Number
78N33230
Funding Number(s)
PROJECT: RTOP 506-16-43-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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