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High temperature glass thermal control structure and coatingA high temperature stable and solar radiation stable thermal control coating is described which is useful either as such, applied directly to a member to be protected, or applied as a coating on a re-usable surface insulation (RSI). It has a base coat layer and an overlay glass layer. The base coat layer has a high emittance, and the overlay layer is formed from discrete, but sintered together glass particles to give the overlay layer a high scattering coefficient. The resulting two-layer space and thermal control coating has an absorptivity-to-emissivity ratio of less than or equal to 0.4 at room temperature, with an emittance of 0.8 at 1200 F. It is capable of exposure to either solar radiation or temperatures as high as 2000 F without significant degradation. When used as a coating on a silica substrate to give an RSI structure, the coatings of this invention show significantly less reduction in emittance after long term convective heating and less residual strain than prior art coatings for RSI structures.
Document ID
19830026177
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Stewart, D. A.
(Stanford Univ.)
Goldstein, H. E.
(Stanford Univ.)
Leiser, D. B.
(Stanford Univ.)
Date Acquired
September 4, 2013
Publication Date
April 26, 1983
Subject Category
Energy Production And Conversion
Accession Number
83N34448
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,381,333|NASA-CASE-ARC-11164-1
Patent Application
US-PATENT-APPL-SN-308007
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