Degradation testing of spacecraft materials for long flights in low Earth orbitстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Results of simulation tests of the influence of the protective and functional coatings on the resistance of polymeric constructional spacecraft materials to the impact of atomic oxygen with fluences up to 3.5 × 10 22 cm -2 are presented. It was demonstrated that oxygen plasma beams can be used in accelerated tests of carbon-based and polymeric material structures (with the exception of filled and fluorinated hydrocarbons) to evaluate their resistance to the atomic oxygen impact in low Earth orbit. For unprotected materials, a sharp fall of mechanical properties and a deterioration of optical characteristics were observed. The application of protective coatings is shown to reduce this degradation