Property of Protection against Simultaneous Action between Atomic Oxygen Erosion and Ultraviolet Irradiation by MIL-53(Al) Coating.

ABSTRACT: Rapid development of coatings with resistance to the space irradiation environment of low Earth orbit (LEO), which benefits long-duration exploration missions in LEO, improves the challenging urgency of revealing the interaction between atomic oxygen (AO) erosion and ultraviolet (UV) irradiation. Here, we investigated the simultaneous action of AO erosion and UV irradiation using polyimide (PI) and MIL-53(Al)-coated PI, confirming a synergistic enhancement effect of 21.20 and 14.96% compared to that of AO erosion alone. The resistance to simultaneous action was verified by a more stable chemical state and lower erosion yield (Ey = 4.386 × 10-25 cm3/atom, 12% of pristine PI). Through first-principles calculations, the resistance processes to AO erosion and UV irradiation involve the formati

SUBMITTER: Sun R 

PROVIDER: S-EPMC11603245 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature