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Tribology Letters
Erschienen in: Tribology Letters 2/2014

01.11.2014 | Original Paper

Action Mechanism of WS2 Nanoparticles with ZDDP Additive in Boundary Lubrication Regime

verfasst von: Paula Ussa Aldana, Béatrice Vacher, Thierry Le Mogne, Michel Belin, Benoît Thiebaut, Fabrice Dassenoy

Erschienen in: Tribology Letters | Ausgabe 2/2014

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Abstract

The effect in the tribological performance of WS2 fullerene-like nanoparticles in PAO base oil when adding a ZDDP additive was studied at 100 °C in the boundary lubrication regime. The tribological properties of the dispersion surpass those obtained without one of the two additives. The friction modifier properties of the particles are improved in the presence of ZDDP, while the anti-wear properties of the ZDDP are increased when the particles are added to the dispersion. The composition of the formed tribofilm was investigated. Results show that a 50–60 nm tribofilm is formed on the steel surface composed by WS2 mixed on the ZDDP chemical tribofilm. A WS2-rich layer is observed at the top of the tribofilm. A correlation between the chemical composition of the tribofilm and the tribological properties of the “PAO + WS2 + ZDDP” dispersion was made. Synergy between the two additives was proven.
Vorheriger Artikel Minimization of Friction at Various Speeds Using Autonomous Viscosity Control of Nematic Liquid Crystal
Nächster Artikel Friction Properties of Fluorinated Graphitized Carbon Blacks

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Metadaten
Titel
Action Mechanism of WS2 Nanoparticles with ZDDP Additive in Boundary Lubrication Regime
verfasst von
Paula Ussa Aldana
Béatrice Vacher
Thierry Le Mogne
Michel Belin
Benoît Thiebaut
Fabrice Dassenoy
Publikationsdatum
01.11.2014
Verlag
Springer US
Erschienen in
Tribology Letters / Ausgabe 2/2014
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-014-0405-1

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