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Fused Silica Surface Coating for a Flexible Silica Mat Insulation SystemFused silica insulation coatings have been developed for application to a flexible mat insulation system. Based on crystalline phase nucleation and growth kinetics, a 99+% SiO2 glass was selected as the base composition. A coating was developed that incorporated the high emissivity phase NiCr2O4 as a two phase coating with goals of high emittance and minimum change in thermal expansion. A second major coating classification has a plasma sprayed emittance coating over a sealed pure amorphous SiO2 layer. A third area of development centered on extremely thin amorphous SiO2 coatings deposited by chemical vapor deposition. The coating characterization studies presented are mechanical testing of thin specimens extracted from the coatings, cyclic arc exposures, and emittance measurements before and after arc exposures.
Document ID
19730024732
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rhodes, W. H.
(Avco Corp. Lowell, MA, United States)
Date Acquired
August 7, 2013
Publication Date
September 1, 1973
Publication Information
Publication: NASA. Ames Res. Center Symp. on Reusable Surface Insulation for Space Shuttle, Vol. 1
Subject Category
Materials, Nonmetallic
Accession Number
73N33465
Funding Number(s)
CONTRACT_GRANT: NAS9-12490
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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