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contributor authorAshour, M. E.
contributor authorOsman, T. A.
contributor authorKhattab, A.
contributor authorElshalakny, A. B.
date accessioned2017-11-25T07:19:39Z
date available2017-11-25T07:19:39Z
date copyright2017/4/4
date issued2017
identifier issn0742-4787
identifier othertrib_139_04_041801.pdf
identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4235932
description abstractThe goal of this paper is to investigate tribological characteristics of nanographene platelets and hybridized nanocomposite of multiwalled carbon nanotubes (MWCNTs)/multilayer nanographene platelets (MLNGPs)/lithium based-grease. Characterization is done through high resolution transmission electron microscopy (TEM) and X-ray diffraction. While grease properties were tested using Falex four-ball testing machine. Scanning electron microscopy (SEM) and energy dispersive X-ray diffraction (EDX) were utilized to characterize the lubrication mechanism and the worn surface. The results showed that 1% of MLNGPs is the optimum concentration. Wear scar diameter (WSD) was reduced by 66%, friction coefficient was reduced by 91%, while maximum nonseizer load was increased by 90 kg over ordinary lithium grease. Hybrid MWCNTs\MLNGPs were studied, and the optimum ratio of MLNGPs to MWCNTs was found to be 4:1.
publisherThe American Society of Mechanical Engineers (ASME)
titleNovel Tribological Behavior of Hybrid MWCNTs/MLNGPs as an Additive on Lithium Grease
typeJournal Paper
journal volume139
journal issue4
journal titleJournal of Tribology
identifier doi10.1115/1.4035345
journal fristpage41801
journal lastpage041801-7
treeJournal of Tribology:;2017:;volume( 139 ):;issue: 004
contenttypeFulltext


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