Tribological properties of molybdenum disulphide nanoparticles in soybean oil. (December 2014)

• Record Type: Journal Article
• Authors: Xu, Z. Y.; Hu, K. H.; Cai, Y. K.; Huang, F.; Han, C. L.
• Is Part Of: Tribology. Volume 8:Number 4(2014:Dec.)
• Page Start: 179
• Page End: 186
• Publication Date: 2014-12
• Subjects: Tribology -- Periodicals; 621.8905
• DOI: 10.1179/1751584X14Y.0000000074
• Languages: English
• ISSNs: 1751-5831

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>The tribological properties of soybean oil (SO) with different molybdenum disulfide (MoS₂) additives (hollow nanosphere, nanoplatelet and microplatelet) were investigated. MoS₂ hollow nanospheres remarkably improved the tribological properties of SO. SO with MoS₂ hollow nanospheres decreased abrasive plowing and changed the main wear pattern on the steel friction surfaces into chemical corrosion. The MoS₂ hollow nanospheres easily entered the contact region than the other MoS₂ particles to lubricate the friction pair because of its good dispersibility in SO. The tribochemical reactions among MoS₂ hollow nanospheres, SO and friction material produced a lubricating film composed of MoO₃, Fe₂O₃, carbon containing compounds. Thus, the MoS₂ hollow nanospheres have potential lubricating applications with SO. By contrast, MoS₂ nanoplatelet and microplatelets had lesser effects on the lubricating effect of SO. The MoS₂ nanoplatelets, even with its smaller size and more active chemical properties, had more difficulty in entering into the contact region because of its low dispersibility in the base oil.</p> </abstract>