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Study on the influence of li-grease EP and AW performance by exfoliated MoS2 nanosheet additive
journal contribution
posted on 2014-07-01, 00:00 authored by Deepika, S K Hait, Ying (Ian) ChenYing (Ian) ChenTribological behavior of de-agglomerated and exfoliated active molybdenum disulfide (MoS2) nanosheets as additives in lithium based grease was investigated. MoS2 nanosheets were prepared by mechano-chemical process in a planetary ball mill with selective organic molecules particularly lecithin (a source of phosphorus (exfoliating/stabilizing agent)) along with antiwear additives (ZDDP). Tribological evolutions show significant influence of MoS2 nanosheets on the friction coefficient, WSD (wear scar diameter) and extreme pressure properties of lithium based grease. The elemental composition analysis of the wear track shows the presence of Mo, S, and P on the surface protective layer, revealing the formation of a tribofilm containing MoS2 nanosheets along with phosphorus based moieties.
History
Journal
Advanced science lettersVolume
20Issue
7-9Pagination
1387 - 1395Publisher
American Scientific PublishersLocation
Valencia, Calif.Publisher DOI
ISSN
1936-7317eISSN
1936-7317Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
2014, American Scientific PublishersUsage metrics
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