Use of nanoscaled multilayer and compound films to realize a soft lubrication phase within a hard, wear-resistant matrix
| Autor: | R. Goller, E. Pflüger, W. Gissler, Alan Savan |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Metallurgy chemistry.chemical_element Surfaces and Interfaces General Chemistry Molding (process) Tribology Condensed Matter Physics Surfaces Coatings and Films chemistry Machining visual_art Materials Chemistry Lubrication visual_art.visual_art_medium Ceramic Lubricant Thin film Tin |
| Zdroj: | Surface and Coatings Technology. 126:159-165 |
| ISSN: | 0257-8972 |
| Popis: | An ideal solid lubricant would have a very low friction coefficient coupled with high wear resistance. It has thus been imagined to include clusters of a lubricating material dispersed within a hard matrix. Such a composite coating might provide both a wear-resistant surface and some solid lubrication, with new pockets of lubricant being exposed as the film wears down. The goal is to extend the historical use of MoS 2 in spacecraft, to common industrial environments such as in dry or reduced-lubricant machining, and in machinery. Anti-adhesive properties can also be important, for example in extruding and molding. Modern thin film deposition technologies present possibilities to produce such film structures, both from process and control perspectives. It has been demonstrated that MoS 2 can be added to hard, wear-resistant ceramic films such as TiN or CrN. An opposite approach could be to increase the hardness and perhaps wear resistance of a solid lubricant. Adding elements or compounds to the solid lubricant MoS 2 produced increases in sliding lifetime, and in at least some cases, hardness. Tribological testing in humid atmospheres indicated that low friction coefficients combined with wear resistance can be realized. |
| Databáze: | OpenAIRE |
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