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Issue 16, 2013
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Total internal reflection (TIR) Raman tribometer: a new tool for in situ study of friction-induced material transfer

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Abstract

The sliding history in friction-induced material transfer of dry 2H-MoS2 particles in a sheared contact was studied. Video images in contact showed fragmentation of lubricant particles and build-up of a transfer film, and were used to measure the speed of fragmented particles in the contact region. Total internal reflection (TIR) Raman spectroscopy was used to follow the build-up of the MoS2 transfer film. A combination of in situ and ex situ analysis of the mating bodies revealed the thickness of the transfer film at steady state to be of the order of 35 nm on the ball surface and 15 nm on the flat substrate. Insights into the mechanism of formation of the transfer film in the early stages of sliding contact are deduced.

Graphical abstract: Total internal reflection (TIR) Raman tribometer: a new tool for in situ study of friction-induced material transfer

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Publication details

The article was received on 09 Jan 2013, accepted on 05 Feb 2013 and first published on 06 Feb 2013


Article type: Paper
DOI: 10.1039/C3RA00131H
Citation: RSC Adv., 2013,3, 5401-5411
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    Total internal reflection (TIR) Raman tribometer: a new tool for in situ study of friction-induced material transfer

    M. Praveena, C. D. Bain, V. Jayaram and S. K. Biswas, RSC Adv., 2013, 3, 5401
    DOI: 10.1039/C3RA00131H

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