Morphological Influence of Molybdenum Disulfide on the Tribological Properties of Rapeseed Oil

The morphological influence of molybdenum disulfide (MoS 2 ) on the tribological properties of rapeseed oil (RO) was investigated. MoS 2 nano-vesicles improved the tribological properties of RO, especially the wear resistance. However, nano-platelets and micro-platelets weakened the wear resistance...

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Bibliographic Details
Published in:Tribology letters 2013-03, Vol.49 (3), p.513-524
Main Authors: Xu, Ze Yin, Hu, Kun Hong, Han, Cheng Liang, Hu, Xian Guo, Xu, Yu Fu
Format: Article
Language:English
Subjects:
Abrasive wear
Chemistry and Materials Science
Corrosion and Coatings
Corrosive wear
Galvanic corrosion
Lubrication
Maintenance management
Materials Science
Mechanical properties
Molybdenum
Molybdenum disulfide
Morphology
Nanocomposites
Nanomaterials
Nanostructure
Nanotechnology
Organic chemistry
Original Paper
Physical Chemistry
Platelets (materials)
Plowing
Rapeseed
Rapeseed oil
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
Tribology
Vegetable oils
Vesicles
Wear resistance
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Summary:The morphological influence of molybdenum disulfide (MoS 2 ) on the tribological properties of rapeseed oil (RO) was investigated. MoS 2 nano-vesicles improved the tribological properties of RO, especially the wear resistance. However, nano-platelets and micro-platelets weakened the wear resistance because of their bad dispersibility in RO. Positive synergistic lubrication was observed between nano-vesicles and nano-platelets, but not between nano-vesicles and micro-platelets or nano-platelets and micro-platelets. Abrasive plowing is the main wear manner for the steel balls lubricated by RO or ROs with platelet-like MoS 2 . However, chemical corrosive wear occurred on the friction surface as lubricated by RO with nano-vesicles. The chemical corrosive wear confirmed the entering of MoS 2 nano-particles to the contact area for lubrication. This lubrication of nano-vesicles was ascribed to their spherical structure and good dispersibility in RO. The nano-vesicles did not influence the stability of RO and assembled beside furrows to alleviate the wear. Thus, potential applications of MoS 2 nano-vesicles in vegetable oils were revealed.
ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-012-0092-8