Jiwon JUNG, Jongkyung AN, Seunghwan KWON, Gun Jin YUN

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST 2024 – 0039

While operating spacecraft in Leo Earth Orbit (LEO), polymers are damaged by extreme environments in space. Especially, highly reactive oxygen atoms are continuously bombarded on the surface, leading to polymer erosion. In this study, atomic oxygen (AO) bombardment simulation on Kapton using Reax- FF molecular dynamics (MD) was undertaken to calculate erosion yield at the LEO-operating temperature regime and quantify temperature dependency. Unlike previous studies under NVE ensemble, the convergence of erosion yield after saturation of AO on the system was observed, and from the Arrhenius plot of the erosion yield, the phase transition effect was also found by relatively long-time NVT simulations.

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In Categories: 1.Events, HiSST 2024, Materials and Structures
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