Raman spectra of lubricants in elastohydrodynamic entrapments

The authors report the initial results of a novel Raman spectroscopy method for studying lubricant characteristics in a simulated elastohydrodynamic contact. The method uses a Raman microscope which allows spectra to be obtained from a small volume (about 0.1 nl) of lubricant entrapped in the elasti...

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Bibliographic Details
Published in:Wear 1983-01, Vol.91 (1), p.111-114
Main Authors: Gardiner, D.J., Baird, E., Gorvin, A.C., Marshall, W.E., Dare-Edwards, M.P.
Format: Article
Language:English
Subjects:
Applied sciences
elasticity
Exact sciences and technology
Friction, wear, lubrication
hydrodynamics
lubricants
Machine components
Mechanical engineering. Machine design
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Summary:The authors report the initial results of a novel Raman spectroscopy method for studying lubricant characteristics in a simulated elastohydrodynamic contact. The method uses a Raman microscope which allows spectra to be obtained from a small volume (about 0.1 nl) of lubricant entrapped in the elastic deformation formed when a loaded glass plate falls onto a lubricated steel ball. The existence of such entrapments is well established following the early work of Dowson and Jones. The work described here was undertaken to obtain direct pressure measurements from an entrapped fluid at equilibrium after the initial impact.
ISSN:0043-1648
1873-2577
DOI:10.1016/0043-1648(83)90111-4