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Effect of Reinforcement Particle Size on the Tribological Properties of Nano-Diamond Filled Polytetrafluoroethylene Based Coating
- Authors
- Lim, D. P.; Lee, J. Y.; Lim, D. S.; Ahn, S. G.; Lyo, I. W.
- Issue Date
- 7월-2009
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Tribology; PTFE Coating; Nano-Diamond; Wear
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.9, no.7, pp.4197 - 4201
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 9
- Number
- 7
- Start Page
- 4197
- End Page
- 4201
- ISSN
- 1533-4880
- Abstract
- The tribological properties of PTFE composite coatings reinforced by nano-diamonds were investigated. Mechanical particle size reduction and dispersion of nano-diamond aggregates were performed by milling with ceramic beads in an organic solvent. Particle size was controlled by the milling time. Pastes comprising a PTFE solution mixed with nano-diamond having various sizes were coated on the aluminum substrate. Ball-on-plate type wear test was performed to investigate the friction and wear behavior. The results indicated that the addition of nano-diamonds effectively improved tribological performance of the PTFE coating. The reduction in nano-diamond sizes were not always improved the wear resistance of PTFE coating. This unexpected behavior was explained by observation on the worn surfaces and wear debris.
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