Several pellet-on disk and pad-on disk tribometer tests were conducted to study the lubrication characteristics of third-body particles of MoS2 powder. The tests consisted of simultaneous pellet-on disk and pad-on disk sliding contacts. Results from the tests show the self-repairing, self-replenishing, oil-free lubrication mechanism of MoS2. A theoretical control-volume fractional coverage model was developed to predict (1) the friction coefficient at the pad/disk interface and (2) the wear factor for the lubricated pellet/disk sliding contact. The fractional coverage varies with time and quantifies the amount of third body film covering the disk asperities. Results from the model capture the tribological behavior of the experimental sliding contacts reasonably well.
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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
Self-Replenishing, Self-Repairing Solid Lubrication: Modelling and Experimentation
E. Y. A. Wornyoh,
E. Y. A. Wornyoh
Carnegie Mellon University, Pittsburgh, PA
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C. F. Higgs, III
C. F. Higgs, III
Carnegie Mellon University, Pittsburgh, PA
Search for other works by this author on:
E. Y. A. Wornyoh
Carnegie Mellon University, Pittsburgh, PA
C. F. Higgs, III
Carnegie Mellon University, Pittsburgh, PA
Paper No:
WTC2005-63707, pp. 409-410; 2 pages
Published Online:
November 17, 2008
Citation
Wornyoh, EYA, & Higgs, CF, III. "Self-Replenishing, Self-Repairing Solid Lubrication: Modelling and Experimentation." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 2. Washington, D.C., USA. September 12–16, 2005. pp. 409-410. ASME. https://doi.org/10.1115/WTC2005-63707
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