Evaluation of Near Frictionless Carbon Coatings Using Four-Ball Wear Tester Conference Paper uri icon


  • Near frictionless carbon (NFC) coatings were deposited in a large-area filtered cathodic arc system by plasma-enhanced chemical vapor deposition. An NFC coating with carbon-enriched TiC bond layers was deposited on half inch diameter steel (M50) balls. The four-ball wear test was used to evaluate the performance of the NFC coating. The endurance limit of the NFC coating was determined by starting the wear test at a relatively low load and increasing the load by a fixed amount after a given time interval to a final load at which the friction force reached a certain level. The four-ball wear test was conducted in fully flooded, starved, and dry lubrication conditions. MIL-PRF-23699 oil was the lubricant. Test results indicated a much higher endurance limit for the NFC-coated balls compared to that of uncoated balls.

name of conference

  • World Tribology Congress III, Volume 2

published proceedings

  • World Tribology Congress III, Volume 2

author list (cited authors)

  • Rai, A. K., Bhattacharya, R. S., Massey, M., Eryilmaz, O. L., & Erdemir, A.

citation count

  • 0

complete list of authors

  • Rai, AK||Bhattacharya, RS||Massey, M||Eryilmaz, OL||Erdemir, A

publication date

  • January 1, 2005 11:11 AM