The optical EHD method applied to the study of ageing of biodegradable oils

Cloesen, C.; Kabuya, A.; Bozet, Jean-Luc

doi:10.1002/jsl.3000150102

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The optical EHD method applied to the study of ageing of biodegradable oils

Cloesen, C.; Kabuya, A.; Bozet, Jean-Luc

1998 • In Journal of Synthetic Lubrication, 15 (1), p. 1-12

Peer reviewed

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https://hdl.handle.net/2268/171784

DOI
10.1002/jsl.3000150102

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Abstract :

[en] In the present study, modifications of the lubricating properties of vegetable oils, which had undergone accelerated ageing, were quantified, using the optical EHD method. Each oil sample was examined in an optical viscometer in order to measure film thickness vs. contact speed. From these results the pressure—viscosity coefficient was calculated, by adjusting theoretical values. The modifications were related to molecular changes, which were observed with various tools of chemical analysis, including gel permeation chromatography (GPC).

Disciplines :

Mechanical engineering

Author, co-author :

Cloesen, C.

Kabuya, A.

Bozet, Jean-Luc ; Université de Liège - ULiège > Département de chimie appliquée > Chimie appliquée - Cryotribologie

Language :

English

Title :

The optical EHD method applied to the study of ageing of biodegradable oils

Publication date :

April 1998

Journal title :

Journal of Synthetic Lubrication

ISSN :

0265-6582

Publisher :

Wiley

Volume :

Issue :

Pages :

1-12

Peer reviewed :

Peer reviewed

Available on ORBi :

since 03 September 2014

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Bibliography

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Kabuya, A., and Bozet., J.L., 'Comparative analysis of the lubricating power between a pure mineral oil and biodegradable oils of the same ISO grade', Lubricants and Lubrication, Elsevier, Amsterdam, 1995.
Cloesen, C., Kabuya, A., Nelis, M., and Bozet, J.L., 'The assessment of vegetable oils as renewable environmentally acceptable lubricants', 87th AOCS Annual Meeting, Indianapolis, 1996.
Cloesen, C., and Bozet, J., 'Etude des propriétés lubrifiantes des huiles d'origine végétale', Rapports Région Wallonne No 2174, 3, 1996, and 4, 1997.
Cameron, A., Basic Lubrication Theory, 2nd ed., Ellis Horwood series in Engineering Sciences, London, 1976.
Jackson, A., 'Film thickness in EHL point contacts - revision of Westlake and Cameron's equation', ASLE Trans., 19 (1976) 48-9.
Hamrock, B.J., and Dowson, D., Ball Bearing Lubrication - The Elastohydrodynamics of Elliptical Contacts, Wiley, New York and Chichester, 1981.
Foord, C.A., Wedeven, L.D., Westlake, F.J., and Cameron, A., 'Optical elastohydrodynamics', Proc. I.Mech.E., vol. 184, Pt. 1, no. 28, 1969.
Lessee, J., 'Chromatographie par perméation de gel', Techniques de l'ingénieur, traité analyse et caractérisation, 1-465, p. 1.11.