The efficiency of Co-based single-wall carbon nanotubes (SWNTs) as an AW/EP additive for mineral base oils

A review of recent developments of friction modifiers for liquid lubricants (2007–present)

“…Cursaru et al reported that Cobased single-walled carbon nanotubes (SWCNTs) can be used as an additive for mineral base oils with friction reduction, and a synergistic effect was observed when SWCNTs were used combined with the commercial additive [227]. The sodium dodecyl sulfate (SDS)-functionalized MWCNTs and polyacrylamide-grafted MWCNTs were reported as lubricant additives in water to exhibit good anti-wear and friction reduction properties, respectively [228,229].…”

Boundary lubrication: Influence of the size and structure of inorganic fullerene-like MoS2 nanoparticles on friction and wear reduction

“…Nanospheres and nanotubes (or nanowires) of different nature have been studied, such as for example carbon nano-onions [4], cobalt-based carbon nanotubes [5], Mo 6 S 3 I 6 nanowires [6] or more recently combinations of iron, copper, and cobalt nanoparticles [7]. Inorganic fullerene-like disulfide nanoparticles, and more specifically IF-MoS 2 and IF-WS 2 , have however generated a special interest due to their very low friction and wear reduction properties in severe boundary lubrication regimes [8][9][10][11].…”

Effect of Nano and Micro Friction Modifier Based Lubricants on Wear Behavior Between Steel-Steel Contacts

“…MWCNTs were having least anti wear properties and was much inferior than MCO. This may be due to the excessive absorbance of MWCNTs (physically and chemically) on the surface and thus, the further addition of the nanotubes led to an increase in coefficient of friction and wear rate [19]. As observed from Table 1, surface roughness increased in all the tests but was higher in case of MCO and MCO+0.2%wt.…”