Carbon nanotubes and onions as lubricant additives

L. Joly-Pottuz, J. M. Martin, F. Dassenoy, B. Vacher, T. Mieno, N. Ohmae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Most of lubricant additives used as friction modifier and anti-wear agents are mainly organic compounds containing sulphur and phosphorous. Their lubrication mechanism is based on a tribochemical reaction leading to tribofilm formation but also the formation of some harmful by-products. Inorganic nanoparticles (nanotubes, fullerenes, onions...), because of their unique morphology and very small size, could be envisaged for the replacement of such organic additives. The purpose of this work is to study and compare the tribological properties of different kinds of nanoparticles added and dispersed as additives to a lubricating base oil. Here, we are particularly interested in carbon nanotubes and graphite onions which were then tested and compared. Added to a poly-alpha-olefin (PAO) base oil, all nanoparticles tested show a reduction of both friction and wear of steel counterfaces. The detailed study of the concentration effect in PAO shows that lwt% of nanotubes is sufficient to obtain good tribological properties. A structural modification of nanoparticles during friction was clearly evidenced by analytical TEM. In the case of nanotubes, flake-like wear debris made of amorphous carbon have been observed [1].

Original languageEnglish
Title of host publicationProceedings of the World Tribology Congress III - 2005
PublisherAmerican Society of Mechanical Engineers
Number of pages2
ISBN (Print)0791842010, 9780791842010
Publication statusPublished - 2005
Externally publishedYes
Event2005 World Tribology Congress III - Washington, D.C., United States
Duration: 2005 Sept 122005 Sept 16

Publication series

NameProceedings of the World Tribology Congress III - 2005


Other2005 World Tribology Congress III
Country/TerritoryUnited States
CityWashington, D.C.

ASJC Scopus subject areas

  • Engineering(all)


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