JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
63216000.pdf17.37 MB
Other TitleEvaluation of tribological characteristics of sputtered MoS2 films exposed to the LEO environment
Author(jpn)松本 康司; 鈴木 峰男; 今川 吉郎; 岡田 豊; 田頭 稔
Author(eng)Matsumoto, Koji; Suzuki, Mineo; Imagawa, Kichiro; Okada, Yutaka; Tagashira, Minoru
Author Affiliation(jpn)宇宙航空研究開発機構 総合技術研究本部; 宇宙航空研究開発機構 総合技術研究本部; 宇宙航空研究開発機構 宇宙基幹システム本部; 石川島播磨重工業; 三菱電機
Author Affiliation(eng)Japan Aerospace Exploration Agency Institute of Aerospace Technology; Japan Aerospace Exploration Agency Institute of Aerospace Technology; Japan Aerospace Exploration Agency Office of Space Flight and Operations; Ishikawajima-Harima Heavy Industries Co. Ltd.; Mitsubishi Electric Corporation
Issue Date2006-03-31
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication date2006-03-31
AbstractThree kinds of sputtered molybdenum disulfide (MoS2) films were exposed to the Low Earth Orbit (LEO) space environment aboard the NASA Space Shuttle (STS-85) for 11 days, as a part of the Evaluation of Space Environment and Effects on Materials (ESEM) experiment. For comparison, the same types of MoS2 films were exposed to atomic oxygen (AO) or ultraviolet rays (UV) on the ground. Surface analyses and friction tests were carried out to evaluate the influence of AO, UV and the LEO space environment on the tribological characteristics of the sputtered MoS2 films. The surfaces of all the films exposed to LEO were oxidized. The depth of the oxidized layer differed for each type of film. The friction coefficient of all the films decreased after exposure to the LEO environment. The effect of space exposure on the wear life of the MoS2 films depended on the film type. AO produced a similar but more profound effect than LEO exposure. The effect of UV irradiation was hardly observed.
DescriptionJAXA Research and Development Report
Keywordsmolybdenum disulfide; lubricant; tribology; Earth orbital environment; low Earth orbit; atomic oxygen; AO; sputtered film; surface analysis; ultraviolet light; coefficient of friction; sputtering; coating; 2硫化モリブデン; 潤滑剤; トライボロジー; 地球軌道環境; 低地球軌道; 原子状酸素; AO; スパッタリング被膜; 表面分析; 紫外線; 摩擦係数; スパッタリング; コーティング
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-05-047

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.