Space tribology activities in Japan - Laboratory data and flight experiment aboard SFU/EFFU

Nobuo Ohmae; Hiroshi Kinoshita; Junichi Ikeda; Masahito Tagawa; Masashi Arita; Katsuhiro Kishi; Masahiro Shibata

Space tribology activities in Japan - Laboratory data and flight experiment aboard SFU/EFFU

Nobuo Ohmae, Hiroshi Kinoshita, Junichi Ikeda, Masahito Tagawa, Masashi Arita, Katsuhiro Kishi, Masahiro Shibata

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes recent laboratory experiments on space tribology as well as flight experiments aboard SFU/EFFU. Tribological properties of single crystal molybdenum disulfide have been studied during atomic oxygen exposure. Surface characterization of the MoS₂ with Auger electron spectroscopy was carried out without breaking vacuum. Small amount of oxygen was detected after exposure to atomic oxygen beam. High start-up friction was obvious in the case of AO-exposed MoS₂. An organic binder type spray-bonded MoS₂ film flown on the SFU/EFFU showed no difference in tribological performance from the control samople. Moreover, the wear life of the flight sample was even longer than the control sample. This unexpected effect was explained by the polymerization of the binder due to UV exposure in the orbit.

Original language	English
Pages (from-to)	387-391
Number of pages	5
Journal	European Space Agency, (Special Publication) ESA SP
Issue number	399
Publication status	Published - Dec 1 1997

ASJC Scopus subject areas

Aerospace Engineering
Space and Planetary Science

Cite this

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abstract = "This paper describes recent laboratory experiments on space tribology as well as flight experiments aboard SFU/EFFU. Tribological properties of single crystal molybdenum disulfide have been studied during atomic oxygen exposure. Surface characterization of the MoS2 with Auger electron spectroscopy was carried out without breaking vacuum. Small amount of oxygen was detected after exposure to atomic oxygen beam. High start-up friction was obvious in the case of AO-exposed MoS2. An organic binder type spray-bonded MoS2 film flown on the SFU/EFFU showed no difference in tribological performance from the control samople. Moreover, the wear life of the flight sample was even longer than the control sample. This unexpected effect was explained by the polymerization of the binder due to UV exposure in the orbit.",

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T1 - Space tribology activities in Japan - Laboratory data and flight experiment aboard SFU/EFFU

AU - Ohmae, Nobuo

AU - Kinoshita, Hiroshi

AU - Ikeda, Junichi

AU - Tagawa, Masahito

AU - Arita, Masashi

AU - Kishi, Katsuhiro

AU - Shibata, Masahiro

PY - 1997/12/1

Y1 - 1997/12/1

N2 - This paper describes recent laboratory experiments on space tribology as well as flight experiments aboard SFU/EFFU. Tribological properties of single crystal molybdenum disulfide have been studied during atomic oxygen exposure. Surface characterization of the MoS2 with Auger electron spectroscopy was carried out without breaking vacuum. Small amount of oxygen was detected after exposure to atomic oxygen beam. High start-up friction was obvious in the case of AO-exposed MoS2. An organic binder type spray-bonded MoS2 film flown on the SFU/EFFU showed no difference in tribological performance from the control samople. Moreover, the wear life of the flight sample was even longer than the control sample. This unexpected effect was explained by the polymerization of the binder due to UV exposure in the orbit.

AB - This paper describes recent laboratory experiments on space tribology as well as flight experiments aboard SFU/EFFU. Tribological properties of single crystal molybdenum disulfide have been studied during atomic oxygen exposure. Surface characterization of the MoS2 with Auger electron spectroscopy was carried out without breaking vacuum. Small amount of oxygen was detected after exposure to atomic oxygen beam. High start-up friction was obvious in the case of AO-exposed MoS2. An organic binder type spray-bonded MoS2 film flown on the SFU/EFFU showed no difference in tribological performance from the control samople. Moreover, the wear life of the flight sample was even longer than the control sample. This unexpected effect was explained by the polymerization of the binder due to UV exposure in the orbit.

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Space tribology activities in Japan - Laboratory data and flight experiment aboard SFU/EFFU

Abstract

ASJC Scopus subject areas

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