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Measurement of Sub-Nanometer Lubricant Films Using Ultra-Thin Film Interferometry

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Abstract

The ultra-thin film interferometric method of measuring the thickness of very thin films in lubricated contacts has been refined so as to be able to measure films down to 0.3 nm with a standard deviation of 0.15 nm. The main remaining source of measurement variation for films below 3 nm thick is the surface roughness of the contacting solids. This modified technique has been applied to study the film-forming properties of three fluids, hexadecane, a dilute solution of surfactant in hexadecane, and cyclohexane. Purified hexadecane shows a very slightly enhanced oil-film thickness below 1 nm. The long-chain surfactant forms a boundary film 2 nm thick. Cyclohexane behaves as though it forms a surface layer about 1 nm thick with viscosity three times the bulk fluid viscosity.

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References

  1. G. J. Johnston, R. Wayte and H. A. Spikes, Trib. Trans. 34 (1991) 187.

    Google Scholar 

  2. H. A. Spikes, Invited paper at World Tribology Congress, London, Sept. 1997, ed. I. M. Hutchins (MEP Ltd, London, 1997) p. 353.

    Google Scholar 

  3. H. A. Spikes, Proc. NATO Course, Keszthely, Hungary, August 2000, ed. B. Bhushan (Kluwer Academic Publishers, Netherlands, 2000) p. 663.

    Google Scholar 

  4. M. Smeeth, H. A. Spikes and S. Gunsel, Langmuir 12 (1996) 4594.

    Google Scholar 

  5. V. Anghel, P. M. Cann and H. A. Spikes, Proc. Leeds-Lyon Symposium, Elastohydrodynamics '96, Leeds, Sept. 1996. ed. D. Dowson et al. (Elsevier, Amsterdam, 1997) p. 459.

    Google Scholar 

  6. D. Dowson, J. Phys. D, Appl. Phys. 25 (1992) A334.

    Google Scholar 

  7. Y. Kimura, T. Wakabayashi and J. Sugimura, Proc. 26th Leeds-Lyon Symposium on Tribology, Sept 1999 (Elsevier, Amsterdam, 2000).

    Google Scholar 

  8. B. Bhushan, Tribology and Mechanics of Magnetic Storage Devices, 2nd Edition (IEEE Press and Springer-Verlag, New York, 1996).

    Google Scholar 

  9. V. N. Bliznyuk, M. P. Everson and V. V. Tsukruk, Trans. ASME J. Trib. 120 (1998) 489.

    Google Scholar 

  10. H. A. Spikes, Proc. I. Mech. E. J213 (1999) 335.

    Google Scholar 

  11. H. A. Spikes and M. Ratoi, Proc. Leeds-Lyon Symposium, Leeds, Sept. 1999, ed. D Dowson et al. (Elsevier, Amsterdam, 2000).

    Google Scholar 

  12. K. Topolovec-Miklozic, P. M. Cann, and H. A. Spikes, Plenary and Session Key Papers. 2nd WTC Meeting, Vienna, Sept. 2001, ed. F. Franek et al. (2001).

  13. J. Luo, S. Wen and P. Huang, Wear 194 (1996) 107.

    Google Scholar 

  14. F. Guo and P. L. Wong, Proc. I. Mech. E. J216 (2002) 281.

    Google Scholar 

  15. P. M. Cann, J. Hutchinson and H. A. Spikes, Trib. Trans. 39 (1996) 915.

    Google Scholar 

  16. L. Gustafsson, E. Hoglund and O. Marklund, Proc. I. Mech. E. J208 (1994) 199.

    Google Scholar 

  17. R. Bassani and E. Ciulli, Proc. 23rd Leeds-Lyon Symp. on Tribology, Elastohydrodynamics '96, ed. D. Dowson et al. (Elsevier, Amsterdam, 1997).

    Google Scholar 

  18. M. Hartl, I. Krupka and M. Liska, Opt. Eng. 36 (1997) 1.

    Google Scholar 

  19. J. Molimard, M. Querry and P. Vergne, Proc. 25th Leeds-Lyon Symp. on Tribology, Lubrication at the Frontier, ed. D. Dowson et al. (Elsevier, Amsterdam, 1999).

    Google Scholar 

  20. G. J. Johnston, Thick Film Formation by Phosphorus Antiwear Additives, PhD Thesis, University of London, Dec. (1990).

  21. C. A. Foord, L. D. Wedeven, F. J. Westlake and A. Cameron, Proc. Inst. Mech. Eng. 184(1) (1969–70), 487.

    Google Scholar 

  22. R. Wang and P. L. Wong, Trib. Int. 30 (1997) 801.

    Google Scholar 

  23. G. Guangteng and H. A. Spikes, Trib. Trans. 39 (1996) 448.

    Google Scholar 

  24. H. A. Macleod, Thin-film Optical Filters, 3rd Edition (IoP, Bristol, 2001).

    Google Scholar 

  25. W. H. Press, B. P. Flannery, A. A. Teukolsky and W. T. Vetterling eds. Numerical Recipes in (C2), 2nd Edition (Cambridge University Press, Cambridge, 2002).

    Google Scholar 

  26. D. W. Lynch and W. R. Hunter, in: Handbook of Optical Constants of Solids, ed. E. D. Palik (Academic Press, NY, 1985).

    Google Scholar 

  27. A. M. Homola, J. N. Israelachvili, M. L. Gee and P. M. McGuig-gan, Trans. ASME, J. Trib. 111 (1989) 675.

    Google Scholar 

  28. M. L. Gee, P. M. McGuiggan and J. N. Israelachvili, J. Chem. Phys. 93 (1990) 1895.

    Google Scholar 

  29. H. Matsuoka and T. Kato, Proc. I. Mech. E. J211 (1997) 139.

    Google Scholar 

  30. P. K. Gupta and J. A. Walowit, Trans ASME J. Lubr. Technol. 96 (1974) 250.

    Google Scholar 

  31. B. J. Hamrock and D. Dowson, Ball Bearing Lubrication: The Elastohydrodynamics of Elliptical Contacts (John Wiley, New York, 1981).

    Google Scholar 

  32. M. Ratoi, V. Anghel, C. Bovington and H. A. Spikes, Trib. Int. 33 (2000) 241.

    Google Scholar 

  33. M. Ratoi, H. A. Bovington and H. A. Spikes, Trib Trans. 46 (2003) 24.

    Google Scholar 

  34. J.M. Georges, A. Tonck and D. Mazuyer, Wear 175 (1994) 59.

    Google Scholar 

  35. A. Ulman, Introduction to Ultrathin Organic Films (Academic Press, Boston 1991).

    Google Scholar 

  36. D. Zhu, Trib. Trans. 45 (2002) 540.

    Google Scholar 

  37. J. M. Georges, S. Millot, J. L. Loubet, and A. Tonck, J. Chem. Phys. 98 (1993) 7345.

    Google Scholar 

  38. J. N. Israelachvili, J. Coll. Interf. Sci. 44 (1973) 259.

    Google Scholar 

  39. H. A. Spikes and P. M. Cann, Proc. I. Mech. E. J215 (2001) 261.

    Google Scholar 

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Authors and Affiliations

  1. Mechanical Engineering Department, Imperial College, London, SW7 2AZ, UK

    R.P. Glovnea, A.K. Forrest, A.V. Olver & H.A. Spikes

Authors
  1. R.P. Glovnea
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  2. A.K. Forrest
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  3. A.V. Olver
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  4. H.A. Spikes
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Glovnea, R., Forrest, A., Olver, A. et al. Measurement of Sub-Nanometer Lubricant Films Using Ultra-Thin Film Interferometry. Tribology Letters 15, 217–230 (2003). https://doi.org/10.1023/A:1024809102533

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