AZW-LA-II white paint on swift BAT and XRT radiators: first time this paint is flown on an operational spacecraft

Author

Choi, Michael K.

Author_Institution

NASA Goddard Space Flight Center, Greenbelt, MD, USA

fYear

2004

fDate

29-31 July 2004

Firstpage

361

Lastpage

363

Abstract

To minimise the effect of albedo flux and heat flux on the radiators, the AZW-LA-II white paint is used as thermal coating for the swift BAT and XRT radiators in spacecraft. The thermal coatings committee at GFSC recommends the following thermo-optical properties for this coating in the swift mission, when it is not exposed to direct solar radiation. The solar absorptance is 0.08 and hemispherical emittance is 0.91 at beginning of life (BOF). The solar absorptance is 0.12 and hemispherical emittance is 0.90 at the end of life (EOF). After the application of AZW-LA-II white paint on the radiators, these radiators has undergone thermal vacuum cycle test and was found that the paint is in good shape.

Keywords

paints; solar radiation; space vehicles; telescopes; thermal analysis; thermal barrier coatings; AZW-LA-II white paint; X-Ray telescope radiators; albedo flux; heat flux; operational spacecraft; swift burst alert telescope radiators; thermal coating; thermal vacuum cycle test; Adhesives; Charge coupled devices; NASA; Paints; Ribs; Silver; Space vehicles; Telescopes; Temperature; Thermoelectricity;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Engineering Conference, 2002. IECEC '02. 2002 37th Intersociety

Print_ISBN

0-7803-7296-4

Type

conf

DOI

10.1109/IECEC.2002.1392049

Filename

1392049