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Catalytic Generation of Lubricants from Carbonaceous Gases on Surfaces Undergoing Friction at High Temperatures
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Abstract
All organic materials become very unstable at high temperatures. They will crack, coke, polymerize, especially on hot solid surfaces and on some more so than on others. They can also react with the surfaces. Some of these pyrolysis or reaction products can be good solid lubricants. They don't last long, but then again under friction and wear new active surfaces and more lubricants can be formed. This is a concept of solid lubricant regeneration.
Our work has proved experimentally that this concept has merit, perhaps as a result of partial graphitization, under selected conditions. In particular, in an environmental chamber, on heated nickel or nickel alloy and palladium surfaces in inert atmospheres, friction and wear coefficients were found to drop by an order of magnitude or more when as little as 1% of ethylene gas was introduced. Diffusion of elemental carbon through the metal lattice appears to be the rate-controlling step in the process.
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Citation
Lauer, J. and Bunting, B., "Catalytic Generation of Lubricants from Carbonaceous Gases on Surfaces Undergoing Friction at High Temperatures," SAE Technical Paper 880019, 1988, https://doi.org/10.4271/880019.Also In
References
- Savage R.H. Schaefer D.L. “Vapor Lubrication of Graphite Sliding Contacts,” J. Appl. Physics 27 2 136 8 1956
- Bunting B.C. Lauer J.L. “The Lubrication of Metals and Ceramics by the Catalytic Formation of Carbon Films,” SAE Paper 87002 SAE International Congress and Exposition, Proceedings of the Symposium on the Adiabatic Engine Detroit February 23-27, 1987
- Zuhr R.A. Hudson J.B. “The Adsorption and Decomposition of Ethylene on Ni(110),” Surface Science 66 405 1977
- a) Lacava A.I. Fernandez-Raone E.D. Isaacs L.L. Caraballo M. “Effect of Hydrogen on the Iron- and Nickel-Catalyzed Formation of Carbon from Bengene,” in ” Coke Formation on Metal Surfaces Albright L.F. Baker R.T.K. ACS Symposium Series 202 89 107 1982 b) Ibid 109 121 1982
- Holstein W.L. Mvorhead R.D. Popper H. Boundart M. “The Palladium-Catalyzed Conversion of Amorphous to Graphitic Carbon,” in ” Chemistry and Physics of Carbon 18 Thrower Peter A. New York Marcel Dekker, Inc. 1982 139 171
- Baurd T. Fryer J.R. Grant B. “Carbon Fromation on Iron and Nickel Foils by Hydrocarbon Pyrolysis Reactions at 700°C,” Carbon 12 591 602 1974
- Stuve E.M. Jorgensen S.W. Madix R.J. “Oxygen Interactions and Reactions on Palladium (100): Coadsorption Studies with C 2 H 4 - H 2 O, and CH 3 OH,” in Catalyst Characterization Science Deviney M.L. Gland J.L. ACS Symposium Series 288 165 176 1985
- McCarty J.G. Hou P.Y. Sheridan D. Wise H. “Reactivity of Surface Carbon on Nickel Catalysts: Temperature-Programmed Surface Reaction with Hydrogen and Water” in Coke Formation on Metal Surfaces Albright L.F. Baker R.T.K. ACS Symposium Series 202 89 107 1982
- Thiessen P.A. Heincke G. Schober E. Z. anorg.allg. Chem 377 20 1970
- Hertz H. “Collected Works,” 1 155 1895
- Bryant P.J. Gutshall P.L. Taylor L.H. “A Study of Mechanisms of Graphite Friction and Wear” Wear 7 118 126 1964
- Bernardo C. Trimm D.L. “Evidence that Carbon Formation on Nickel Involves Bulk Diffusion,” Carbon 14 287 88 1976