Effect of Humidity on the Tribological Properties of Carbide-Derived Carbon (CDC) Films on Silicon Carbide |
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| Authors: | B Carroll Y Gogotsi A Kovalchenko A Erdemir MJ McNallan |
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| Affiliation: | (1) Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania, 19104;(2) Energy Technology Division, Argonne National Laboratory, Argonne, Illinois, 60439;(3) Department of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, Illinois, 60607 |
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| Abstract: | The effect of humidity on the tribological behavior of carbide-derived carbon (CDC) films prepared by high-temperature chlorination of silicon carbide was examined. Pin-on-disk tribological tests indicate that CDC, unlike graphite or glassy carbon, performs better in dry nitrogen (less than 0.05 friction coefficient at 0% humidity) than in humid air. This versatility is explained by the onion-like structure of the nanoporous CDC coating. |
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| Keywords: | carbon tribology humidity coatings dry friction |
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