Abstract
In this paper, the effect of atomic oxygen exposures on the tribological properties of molybdenum disulfide (MoS2) is studied with a laser-induced breakdown type atomic oxygen facility. MoS2 single crystals as well as sputtered films are used as specimens to clarify both fundamental reaction and change in tribological properties of MoS2.
X-ray photoelectron spectroscopy and residual gas analysis show that SO and Mo03 are formed at the MoS2 (0001) surfaces. A significant loss of S is found to be due to volatilization of SO. The atomic oxygen exposure on the MoS2 induces high friction (six times higher than normal value) at the beginning of any sliding action on the sputtered films, but no significant effect on a single crystal. It is demonstrated that high friction with sputtered films is being retained when sufficient atomic oxygen is provided while sliding.
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© 2001 Springer Science+Business Media Dordrecht
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Tagawa, M., Ikeda, J., Kinoshita, H., Umeno, M., Ohmae, N. (2001). Effect of Atomic Oxygen Exposures on the Tribological Properties of Molybdenum Disulfide Lubricants. In: Kleiman, J.I., Tennyson, R.C. (eds) Protection of Space Materials from the Space Environment. Space Technology Proceedings, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0714-6_5
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DOI: https://doi.org/10.1007/978-94-010-0714-6_5
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