Abstract
The oxidation behavior of the solid lubricant MoS2 was studied using X-ray photoelectron spectroscopy. MoS2-containing slip ring brushes were used to take advantage of anisotropic orientation of the plate-shaped MoS2 crystallites occurring during fabrication of the brushes. Because oxidation occurs preferentially at the edges of the crystallites, greater oxidation fractions are measured when the edges are oriented toward the photoelectron energy analyzer. These results indicate a novel method for separately probing the chemistry on the edge and (lubricious) basal surfaces of MoS2.
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References
J.R. Lince and P.D. Fleischauer, in: Space Vehicle Mechanisms: Elements of Successful Design, ed. P. Conley (Wiley-Interscience, New York, 1998) ch. 7.
B.J. Mrstik, R. Kaplan, T.L. Reinecke, M.A. Van Hove and S.Y. Tong, Phys. Rev. B 15 (1977) 897.
J.R. Lince, in: NASA Space Mechanisms Handbook, ed. R.L. Fusaro (Glenn Research Center, Cleveland, OH, 1999) ch. 16; NASA/TP-1999-206988.
E.W. Glossbrenner and B.K. Witherspoon, in: Proc. 33rd IEEE Holm Conf. Elec. Contacts, 21-23 September 1987, p. 253.
S. Tanuma, C.J. Powell and D.R. Penn, Surf. Sci. 192 (1987) L849.
J.H. Scofield, J. Electron Spectrosc. Relat. Phenom. 8 (1976) 129.
Z. Shuxian, W.K. Hall, G. Ertl and H. Knözinger, J. Catal. 100 (1986) 167; A.V. Startsev, S.A. Shkuropat, V.I. Zaikovskii, E.M. Moroz, Y.I. Yermakov and G.V. Plaksin, Kinet. Katal. 29 (1988) 398.
M. Shimoda, T. Hirata, K. Yagisawa, M. Okochi and A. Yoshikawa, J. Mater. Sci. Lett. 8 (1989) 1089; B.V.R. Chowdari, K.L. Tan, W.T. Chia and R. Gopalkrishnan, J. Non-Cryst. Solids 119 (1990) 95; S.L.T. Andersson and R.F. Howe, J.Phys. Chem. 93 (1989) 4913.
J.R. Lince, Oxidation Gradients in Solid Lubricated Slip Ring Brushes, The Aerospace Corporation, Report No. TOR-99(1550)-3, 30 August 1999.
M. Matsunaga, T. Homma and A. Tanaka, ASLE Trans. 25 (1982) 323.
R.R. Chianelli, A.F. Ruppert, S.K. Behal, B.H. Kear and A. Wold, J. Catal. 92 (1985) 56.
N. Ikarashi, K. Kobayashi, T. Hasegawa and K. Yagi, Jap. J. Appl. Phys. 27 (1988) L750.
P. Raybaud, J. Hafner, G. Kresse and H. Toulhoat, Surf. Sci. 407 (1998) 237.
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Lince, J.R., Frantz, P.P. Anisotropic oxidation of MoS2 crystallites studied by angle-resolved X-ray photoelectron spectroscopy. Tribology Letters 9, 211–218 (2001). https://doi.org/10.1023/A:1018869107511
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DOI: https://doi.org/10.1023/A:1018869107511