Effect of reinforcement particle size on the tribological properties of nano-diamond filled polytetrafluoroethylene based coating

D. P. Lim, J. Y. Lee, D. S. Lim, S. G. Ann, I. W. Lyo

Research output: Contribution to journalArticle

16 Citations (Scopus)


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. Copywright

Original languageEnglish
Pages (from-to)4197-4201
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Issue number7
Publication statusPublished - 2009 Jul 1



  • Nano-diamond
  • PTFE coating
  • Tribology
  • Wear

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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