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Wednesday, August 4, 2004 - 2:30 PM
SES 18.3

Development and Characterization of Near Friction Less Carbon Coatings Using Large Area Filtered Arc Deposition System

R. S. Bhattacharya, A. K. Rai, UES Inc., Dayton, OH; A. Erdemir, Argonne National Laboratory, Argonne, IL

A large area filtered arc deposition system has been used to deposit near friction less carbon coatings (NFC). A bond layer of carbon enriched TiC has been developed and used as a base layer for the deposition of NFC coatings. The quality of the NFC coatings has been confirmed by measuring near frictionless behavior under dry nitrogen atmosphere. The friction and wear characteristics of NFC coatings on steel substrate were measured in laboratory air (RH~50%), dry nitrogen and salt water. The results were compared with friction and wear of uncoated steel with some of the commonly used lubricants such as oil, grease and graphite.

Summary: A large area filtered arc deposition system has been used to deposit near friction less carbon coatings (NFC). A bond layer of carbon enriched TiC was used as a base layer for the deposition of NFC coatings. The friction and wear results of NFC coatings were compared with other lubricants.