Abstract
Effect of 5 eV atomic oxygen beam exposure on the surface properties of sputter-deposited and single-crystal molybdenum disulfide (MoS2) were evaluated in the light of space environmental effects in low earth orbit. X-ray photoelectron spectra indicated that the loss of sulfur from the atomic oxygen exposed MoS2 surface was significant, especially for the sputter-deposited samples. This is due to the formation and gasification of the volatile product, SO. It was also identified that Mo atoms at the surface were oxidized to form MoO3. The amount of oxygen increased within a depth of 22 nm from the surface, whereas loss of sulfur was only observed within 3 nm. It was thus concluded that the chemical change of MoS2 due to atomic oxygen attack is limited to the surface layer of the MoS2-sputtered lubricant.
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References
T. K. Minton and D. J. Garton, in: Chemical Dynamics in Extreme Environments, ed. R. Dressler (World Scientific, Singapore, 2000).
M. Tagawa, K. Yokota, N. Ohmae and H. Kinoshita, J. Spacecraft Rockets 39 (2002) 447.
T. K. Minton and T. A. Moore, Proceedings of 3rd LDEF Post Retrieval Meeting, Williamsburg, (1994) 1113.
A. Paillous, B. Cazaubon, A. Barassin and R. Thomas, Proceedings of 7th International Symposium on Materials in a Space Environment, Toulouse, France (1997) 185.
M. Tagawa, K. Yokota, N. Ohmae and H. Kinoshita, High Perform. Polym. 12 (2000) 53.
J. I. Kleiman, Y. Gudimenko, Z. A. Iskanderova, R. C. Tennyson and W. D. Morison, in: Protection of Space Materials from the Space Environment, eds. J. I. Kleiman and R. C. Tennyson (Kluwer Academic Publishers, Dordrecht, 2001) p. 243.
R. Gonzalez, S. Tomczak, G. Hoflund and T. Minton, Proceedings of the 9th International Symposium on Materials in a Space, Noordwijk, The Netherlands (2003) 118.
J. A. Martin, J. B. Cross and L. E. Pope, Mater. Res. Symp. Proc. 140 (1989) 271.
J. B. Cross, J. A. Martin, J. B. Cross, L. E. Pope and S. L. Koontz, Surface Coat. Technol. 42 (1990) 41.
R. Wei, P. J. Wilbur, B. W. Bughholz and F. M. Kustas, Tribol Trans. 38 (1995) 950.
M. Tagawa, J. Ikeda, H. Kinoshita, M. Umeno and N. Ohmae, in: Protection of Space Materials from the Space Environmnet, eds. J. I. Kleiman and R. C. Tennyson (Kluwer Academic Publishers, Dordrecht, 2001) p. 73.
G. E. Caledonia, R. H. Krech and D. B. Green, AIAA Journal 25 (1987) 59; U. S. Patent No. 4894511 (January 16, 1990).
H. Kinoshita, M. Tagawa, K. Yokota and N. Ohmae, High Perform. Polym. 13 (2001) 225.
M. Tagawa, K. Yokota, H. Kinoshita and N. Ohmae, Proceedings of the 9th International Symposium on Materials in a Space, Noordwijk, The Netherlands (2003) 247.
K. Matsumoto, M. Suzuki, K. Imagawa, Y. Okada and M. Tagashira, Proceedings of the 21st International Symposium on Space Technology and Science, (1998) paper #98-b-30.
J. F. Moulder, W. F. Stickle, P. E. Sobol and K. D. Bomben, in: Handbook of X-ray Photoelectron Spectroscopy, eds. J. Chastain and R. C. King Jr. (Physical Electronics Inc., Eden Prairie, MN, 1995).
M. Arita, Y. Yasuda and N. Ohmae, Proceedings of 4th European Symposium on Space Mechanics and Tribology, Cannoe France, ESA-SP299 (1992) 67.
I. L. Singer, T. Le Mogne, C. Donnet and J. M. Martin, J. Vacuum Sci. Technol. A14(1) (1996) 38.
T. J. Driscoll, L. D. McCormick and W. C. Lederer, Surface Sci., 187 (1987) 539.
M. Tagawa, H. Kinoshita, M. Umeno, N. Ohmae, K. Matsumoto and M. Suzuki, Proceedings of 8th European Space Mechanisms and Tribology Conference, Toulouse, France, ESA SP-438 (1999) 291.
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Tagawa, M., Yokota, K., Ohmae, N. et al. Hyperthermal Atomic Oxygen Interaction with MoS2 Lubricants Relevance to Space Environmental Effects in Low Earth Orbit—Atomic Oxygen-Induced Oxidation. Tribology Letters 17, 859–865 (2004). https://doi.org/10.1007/s11249-004-8094-9
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DOI: https://doi.org/10.1007/s11249-004-8094-9