Research efforts related to dry particulates in sliding contacts are reviewed. In the tribology community, there are primarily two types of dry particulate lubricants that are studied—granular and powder. Granular lubricants usually refer to dry, cohesionless, hard particles which transfer momentum and accommodate surface velocity differences through shearing and rolling at low shear rates, and collisions at high shear rates. Powder lubricants refer to dry, cohesive, soft particles which accommodate surface velocity differences mostly by adhering to surfaces and shearing in the bulk medium, in a manner similar to hydrodynamic fluids. Spanning the past five decades, this review proposes a classification system for the scientific works in the dry particulate tribology literature in terms of theory, experiments, and numerical simulations. It also suggests that these works can be further categorized based on their tribosystem geometry—annular, parallel, and converging.
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STLE/ASME 2006 International Joint Tribology Conference
October 23–25, 2006
San Antonio, Texas, USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4259-2
PROCEEDINGS PAPER
A Review of Dry Particulate Lubrication: Powder and Granular Materials Available to Purchase
Emmanuel Y. A. Wornyoh,
Emmanuel Y. A. Wornyoh
Carnegie Mellon University, Pittsburgh, PA
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Venkat K. Jasti,
Venkat K. Jasti
Carnegie Mellon University, Pittsburgh, PA
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C. Fred Higgs, III
C. Fred Higgs, III
Carnegie Mellon University, Pittsburgh, PA
Search for other works by this author on:
Emmanuel Y. A. Wornyoh
Carnegie Mellon University, Pittsburgh, PA
Venkat K. Jasti
Carnegie Mellon University, Pittsburgh, PA
C. Fred Higgs, III
Carnegie Mellon University, Pittsburgh, PA
Paper No:
IJTC2006-12244, pp. 1345-1360; 16 pages
Published Online:
October 2, 2008
Citation
Wornyoh, EYA, Jasti, VK, & Higgs, CF, III. "A Review of Dry Particulate Lubrication: Powder and Granular Materials." Proceedings of the STLE/ASME 2006 International Joint Tribology Conference. Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology. San Antonio, Texas, USA. October 23–25, 2006. pp. 1345-1360. ASME. https://doi.org/10.1115/IJTC2006-12244
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