AFM Applications for Analysis of Fullerene-Like Nanoparticles
Friction and wear of quasi-spherical fullerene-like solid lubricant nanoparticles of WS2 and MoS2 have been studied.
It was shown that these nanoparticles are capable of withstanding high hydrostatic pressure, caused by compression without suffering heavy damage.
The IF nanoparticles added to oil improve the tribological properties of the steel and ceramic pair mainly under severe contact conditions in comparison to layered solid lubricant powder and a pure oil.
Based on the AFM, TEM and SEM study it was shown that the islands of thin sheets of destroyed IF nanoparticles provide low friction and wear under high contact pressure.
With load increasing, the IF nanoparticles penetrate into the interface, protecting the rubbed surfaces from a direct contact and thus increase the wearability of friction pairs. Molecular sheets of WS2 from the delaminated IF nanoparticles, which reside in the valleys of the rough surfaces cover the contact spots and thus decrease the number of adhered spots under friction.
KeywordsAtomic Force Microscopy Tribological Property Solid Lubricant Contact Spot Mixed Lubrication
Unable to display preview. Download preview PDF.
- 4.Bhushan B, Gupta BK, Van Cleef GW, Capp C, Coe JV (1993) Tribol Trans 36:573Google Scholar
- 10.Tenne R (2001) In: Kenneth D (ed) Progress in inorganic chemistry. Wiley, New York, p 269Google Scholar
- 11.Nath M, Rao CNR (2003) Dalton Trans 1:1Google Scholar
- 14.Feldman Y, Wasserman E, Srolovitz DJ, Tenne R (1995) Science 267:222Google Scholar
- 22.Bhushan B (1999) (ed) Handbook of micro/nano tribology. CRC, New YorkGoogle Scholar
- 23.B Bhushan (2003) (ed) Springer handbook of nanotechnology. Springer, Berlin Heidelberg New YorkGoogle Scholar
- 32.Cameron A (1966) Principles of lubrication. Longmans, New YorkGoogle Scholar
- 33.Spikes HA, Olver AV (2002) In: Bartz WJ (ed) Lubricants, materials, and lubrication engineering. Proceedings of 13th international colloquium on tribology, vol 1, Ostfildern, p 19Google Scholar