Fuel economy and reduction of harmless elements in lubricant are becoming crucial in the automotive industry. An approach to respond these requirements in engine components is the potential use of low friction coatings exposed to specific boundary lubrication conditions. Superlubricity is a new research field in tribology, dealing with very low friction values, typically below 0.01, and this even in dry or vacuum conditions. It is to be noticed that any friction coefficient below 0.001 is hardly measurable with the equipment at hand. Superlow friction was already experimentally observed only in ultrahigh vacuum and inert gas environment, with pure molybdenite (MoS2) coatings [1] and in presence of some hydrogenated DLC coatings [2]. Under boundary lubrication, we show here that the coupling of hydrogen-free carbon coatings and selected organic lubricant additives permits to reach friction values approaching superlubricity and also a wearless behavior.
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World Tribology Congress III
September 12–16, 2005
Washington, D.C., USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4202-9
PROCEEDINGS PAPER
Towards Superlubricity Under Boundary Lubrication
J. M. Martin,
J. M. Martin
Ecole Centrale de Lyon, Ecully, France
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M. I. De Barros Bouchet,
M. I. De Barros Bouchet
Ecole Centrale de Lyon, Ecully, France
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T. Le Mogne,
T. Le Mogne
Ecole Centrale de Lyon, Ecully, France
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M. Kano
M. Kano
Nissan Motor Company, Ltd., Kanagawa, Japan
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J. M. Martin
Ecole Centrale de Lyon, Ecully, France
M. I. De Barros Bouchet
Ecole Centrale de Lyon, Ecully, France
T. Le Mogne
Ecole Centrale de Lyon, Ecully, France
M. Kano
Nissan Motor Company, Ltd., Kanagawa, Japan
Paper No:
WTC2005-63953, pp. 453-454; 2 pages
Published Online:
November 17, 2008
Citation
Martin, JM, De Barros Bouchet, MI, Le Mogne, T, & Kano, M. "Towards Superlubricity Under Boundary Lubrication." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 2. Washington, D.C., USA. September 12–16, 2005. pp. 453-454. ASME. https://doi.org/10.1115/WTC2005-63953
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