Journal
WEAR
Volume 297, Issue 1-2, Pages 1103-1110Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.wear.2012.11.084
Keywords
Inorganic fullerene-like nanostructures; Nanotribology; Boundary lubrication; Stick-slip; Solid nano lubricants
Funding
- European Commission [229284]
- ERC [INTIF 226639]
- Israel Science Foundation
- Harold Perlman Foundation
- Irving and Azelle Waltcher Foundation
- Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging
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The tribological properties of rhenium-doped inorganic fullerene-like MoS2 nanoparticles were studied in poly alpha olefin oil, and compared to inorganic fullerene-like (IF) MS2 (M=Mo,W) nanoparticles and 2H-MoS2 platelets. For this purpose a rotational disc tribometer was used. Different regimes in the Stribeck curve, i.e., boundary, mixed and elasto-hydrodynamic lubrication conditions were studied. A precipitous reduction in friction and wear of oil suspensions with nanoparticles were observed for the entire IF samples. However, Re-doped IF exhibited the best results, presumably due to their reduced tribocharging and agglomeration. The various tribological mechanisms of solid state additives are discussed. (C) 2012 Elsevier B.V. All rights reserved.
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