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titleErosion properties of polyimide as a monitoring material of atomic oxygen environment in space
Other TitleSynergistic effect of atomic oxygen and ultraviolet
Synergistic effect of atomic oxygen and ultraviolet
Erosion properties of polyimide as a monitoring material of atomic oxygen environment in space
Author(jpn)田川 雅人; 横田 久美子
Author(eng)Tagawa, Masahito; Yokota, Kumiko
Author Affiliation(jpn)神戸大学 大学院工学研究科; 神戸大学 大学院工学研究科
Author Affiliation(eng)Kobe University Graduate School of Engineering; Kobe University Graduate School of Engineering
Issue Date2008-03-31
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication title第4回宇宙環境シンポジウム講演論文集
Proceedings of the 4th Spacecraft Environment Symposium
Start page121
End page124
Publication date2008-03-31
AbstractErosion property of polyimide was studied through the ground-based synergistic studies. Hyperthermal atomic oxygen and 172 nm VUV (Vacuum UltraViolet) exposed to polyimide and polyethylene in various conditions. In-situ mass loss measurement of polymers during the atomic oxygen and/or VUV exposures was achieved with a quartz crystal microbalance. The effect of simultaneous ultraviolet exposure on the atomic oxygen-induced erosion was observed at the ultraviolet intensity of 0.5-2.6 x 10(exp -15) mJ/atom for polyethylene. In contrast, the similar effect was observed in polyimide at the relative ultraviolet intensities one order greater than that of polyethylene. It was also found that the effect of 172 nm ultraviolet was different in polyimide and polyethylene; i.e., photo-induced erosion was observed only for polyethylene. It was concluded that polyimide is less sensitive to the simultaneous ultraviolet exposure during atomic oxygen bombardment, and thus evaluated as a better material for measuring atomic oxygen fluence in space.
DescriptionJAXA Special Publication
Keywordserosion; polyimide; polyethylene; aerospace environment; oxygen atom; vacuum ultraviolet radiation; low Earth orbit; satellite surface; spacecraft construction material; quartz microbalance; 浸食; ポリイミド; ポリエチレン; 航空宇宙環境; 酸素原子; 真空紫外放射; 低高度地球周回軌道; 衛星表面; 宇宙機構造材料; 石英マイクロバランス
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-07-030

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