h-BN lamellar lubricant in hydrocarbon and formulated oil in porous sintered bearings (iron + h-BN)
| Autor: | Zenon Pawlak, Marek Macko, Wieslaw Urbaniak, T. Kałdoński |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Mechanical Engineering Metallurgy 02 engineering and technology Tribology engineering.material Nitride 021001 nanoscience & nanotechnology Micelle 020303 mechanical engineering & transports 0203 mechanical engineering Chemical engineering Pulmonary surfactant Lubrication engineering Lamellar structure Cast iron Lubricant 0210 nano-technology Civil and Structural Engineering |
| Zdroj: | Archives of Civil and Mechanical Engineering. 17:687-693 |
| ISSN: | 1644-9665 |
| DOI: | 10.1016/j.acme.2017.01.003 |
| Popis: | We investigate the frictional performance of the hexagonal boron (h-BN) nitride, sintered into the porous iron bearing, with the lubricating hydrocarbon and formulated oils. It was established that the h-BN particles largely improved the tribological performance of the surfaces under contact between the porous bearing and a grey cast iron disc. The h-BN particles (platelets) released during wear reduces friction in a surfactant-free (no additive) lubrication. The hexagonal h-BN solid particles are able to form efficient friction-reducing lamellar sheets on the contacting surfaces. It was found that solubilization of h-BN particles by reverse micelles were not beneficial in reducing friction in lubrication with surfactant. The role played by the surfactant and its effect on h-BN particles lubrication were discussed with respect to reverse micelle and solubilization concepts. |
| Databáze: | OpenAIRE |
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