New Single-Walled Carbon Nanotubes-Ionic Liquid Lubricant. Application to Polycarbonate-Stainless Steel Sliding Contact

Single-walled carbon nanotubes (NTs) were added in a 0.5 wt% proportion to the room temperature ionic liquid (IL) 1-octyl, 3-methylimidazolium chloride ([OMIM]Cl). The [OMIM]Cl + NT mixtures obtained by mechanical grinding in an agate mortar ([OMIM]Cl + NT(g)) or by mechanical grinding and ultrasoun...

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Veröffentlicht in:	Tribology letters 2011-01, Vol.41 (1), p.199-207
Hauptverfasser:	Carrión, Francisco J, Sanes, José, Bermúdez, María-Dolores, Arribas, Alejandro
Format:	Artikel
Sprache:	eng
Schlagworte:	Austenitic stainless steels Carbon carbon nanotubes Chemistry and Materials Science Chlorides Coefficient of friction Corrosion and Coatings Dispersion Dispersions Friction Friction reduction Grinding Heat resistant steels Ionic liquid Ionic liquids Ions Lubricants Lubricants & lubrication Lubrication Materials Science Mortars (material) Nanostructure Nanotechnology Original Paper Physical Chemistry Polycarbonate Polycarbonate resins Polycarbonates Raman spectroscopy Single wall carbon nanotubes Sliding contact Stainless steel Surfaces and Interfaces Theoretical and Applied Mechanics Thin Films Tribology Wear Wear rate X ray photoelectron spectroscopy
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Zusammenfassung:	Single-walled carbon nanotubes (NTs) were added in a 0.5 wt% proportion to the room temperature ionic liquid (IL) 1-octyl, 3-methylimidazolium chloride ([OMIM]Cl). The [OMIM]Cl + NT mixtures obtained by mechanical grinding in an agate mortar ([OMIM]Cl + NT(g)) or by mechanical grinding and ultrasound dispersion ([OMIM]Cl + NT(g + us)) were used as lubricants of the polycarbonate (PC) disc/AISI 316L stainless steel pin contact. When the [OMIM]Cl + NT(g + us) dispersion is used, a negligible wear rate and a friction coefficient reduction of a 66% with respect to neat IL, and of a 50% with respect to [OMIM]Cl + NT(g), is achieved. Results are discussed on the basis of DSC, TGA, Raman spectroscopy, TEM microscopy, XRD, XPS and surface topography analysis.
ISSN:	1023-8883 1573-2711
DOI:	10.1007/s11249-010-9700-7