Fakulteta za strojništvo, Ljubljana (FSLJ)
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Graphene as lubrication additive for steel and dlc-coated surfaces [Elektronski vir]Kogovšek, Janez, 1984- ; Kalin, MitjanWe studied graphene as a possible additive to polyalphaolefin oil (PAO) for lubrication of steel and diamond-like carbon (DLC) coated surfaces. We have observed the tribological performance of PAO ... with different concentrations of graphene platelets (0.5, 1, 2 and 5 wt.%) and compared it to the pure PAO in all lubrication regimes. We investigated the presence and properties of the tribofilms for different concentrations of graphene and their effects on lubrication. We found that in the EHD lubrication of both, steel and DLC, the addition of graphene to PAO had a negligible effect, however, graphene was proven to be very effective in the boundary lubrication regime, where compared to just using the pure PAO oil the friction has been markedly decreased for all concentrations of graphene-additivated oil. For the steel surfaces the friction was decreased by increasing the concentration of graphene up to 1 wt.%, after which the friction has not changed much for higher concentrations. For the DLC, on the other hand, the friction has always been decreased by increasing the concentration of graphene from 0.5 to 5 wt.%. Futhermore, we show that the tribological properties of the graphene-assisted lubricant surpassed those of an oil formulated using conventional additives.Vir: ECOTRIB 2017 [Elektronski vir] (PDF datoteka (1 f.))Vrsta gradiva - prispevek na konferenciLeto - 2017Jezik - angleškiCOBISS.SI-ID - 15587611
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Kogovšek, Janez, 1984- | 32070 |
Kalin, Mitjan | 14556 |
Vir: Osebne bibliografije
in: SICRIS
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