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Porcelain enamel passive thermal control coatingsThis paper discusses the development and evaluation of a highly adherent, low solar absorptance, porcelain enamel thermal control coating applied to 6061 and 1100 aluminum for space vehicle use. The coating consists of a low index of refraction, transparent host frit and a high volume fraction of titania as rutile, crystallized in-situ, as the scattering medium. Solar absorptance is 0.21 at a coating thickness of 0.013 cm. Hemispherical emittance is 0.88. The change in solar absorptance is 0.03, as measured in-situ, after an exposure of 1000 equivalent sun hours in vacuum.
Document ID
19780052100
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Leggett, H.
(Hughes Aircraft Co. Culver City, Calif., United States)
King, H. M.
(NASA Marshall Space Flight Center Huntsville, Ala., United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1978
Subject Category
Optics
Report/Patent Number
AIAA PAPER 78-884
Meeting Information
Meeting: Thermophysics and Heat Transfer Conference
Location: Palo Alto, CA
Start Date: May 24, 1978
End Date: May 26, 1978
Sponsors: American Society of Mechanical Engineers, American Institute of Aeronautics and Astronautics
Accession Number
78A36009
Distribution Limits
Public
Copyright
Other

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