This paper discusses the development and evaluation of a highly adherent, low solar absorptance, porcelain enamel thermal control coating applied to 6061 and 1100 aluminium 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, crystallzed 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. (Kurzetz)
Porcelain enamel passive thermal control coatings
Passive Waermekontrollschichten mit Porzellanbeschichtungen auf Aluminium
AIAA-Papers ; 1-7
1978
7 Seiten, 7 Bilder, 6 Tabellen, 7 Quellen
Conference paper
English
RAUMFAHRT , RAUMFAHRZEUG , WAERMEUEBERGANG , WAERMEABFUHR , ALUMINIUMMAGNESIUMSILICIUMLEGIERUNG , ALUMINIUMMANGANLEGIERUNG , CHEMISCHE ZUSAMMENSETZUNG , WAERMEAUSTAUSCH , WAERMEDURCHGANGSZAHL , OBERFLAECHENBESCHICHTEN , OBERFLAECHENTECHNIK , SCHICHTDICKE , PORZELLAN , ISOLIERSTOFF , EMAILLIEREN , SONNENENERGIE
Porcelain enamel passive thermal control coatings
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