Abstract
Laboratory and on-orbit performance data for two common thermal control materials, silver- and aluminum-backed (metallized) fluorinated ethyl-propylene, were collected from a variety of sources and analyzed. It is demonstrated that the change in solar absorptance α is a strong function of particulate radiation for these materials. Examination of additional data shows that the atomic-oxygen recession rate is a strong function of solar exposure with an induction period of between 25 to 50 equivalent solar hours. The relationships determined in this analysis were incorporated into an electronic knowledge base, the Spacecraft Materials Selector, under NASA Contract NAS8-98213. This tool is available from the NASA Space Environments and Effects program office.
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