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Investigation of electrostatic charging mechanisms in oil lubricated tribo-contacts

Record type: Article

Fundamental studies using a spinning disc tribocharging rig have shown that disc surface roughness, oil temperature and oil composition have an effect on the charging ability of lubricating oils. Further investigations into the effect of oil composition on the charging nature have employed the oil droplet rig to investigate a range of base and formulated oils.
Experimental results indicated that charging in base oils is controlled by levels of impurities, such as sulphur, and aromatic content. For formulated oils it has been determined that the additives are the major contributor to the charging nature and any effect that impurities and aromatics have is negligible.
Studies into the sensitivity of the electrostatic sensor system to surface charge has shown that surface transformations that occur during scuffing in tribocontacts can lead to contact potential differences detectable by this system.

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Citation

Harvey, T.J., Wood, R.J.K., Denuault, G. and Powrie, H.E.G. (2002) Investigation of electrostatic charging mechanisms in oil lubricated tribo-contacts Tribology International, 35, (9), pp. 605-614. (doi:10.1016/S0301-679X(02)00060-9).

More information

Published date: 2002
Additional Information: Received 19 January 2001; revised 2 May 2002; accepted 7 May 2002. Available online 6 September 2002.
Keywords: tribocharging, electrostatic charge, contact potential difference, static electrification, transformer oil, kelvin probe, wear, triboemission, friction, particles, steel

Identifiers

Local EPrints ID: 19765
URI: http://eprints.soton.ac.uk/id/eprint/19765
ISSN: 0301-679X
PURE UUID: 2ba67e87-d6ad-49a2-ae1d-725ff4ed7f55
ORCID for G. Denuault: ORCID iD orcid.org/0000-0002-8630-9492

Catalogue record

Date deposited: 20 Feb 2006
Last modified: 17 Jul 2017 16:30

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Contributors

Author: T.J. Harvey
Author: R.J.K. Wood
Author: G. Denuault ORCID iD
Author: H.E.G. Powrie

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