Nanolubrication: How do MoS2-based nanostructures lubricate?

Milen Stefanov, Andrey N. Enyashin, Thomas Heine, Gotthard Seifert

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

Inorganic MoS2 nanotubes under high pressure have been investigated at the atomistic scale using Born-Oppenheimer molecular dynamics simulations. We show that the low friction coefficient at high loads is not due to the ball-bearing effect. Instead the nanostructures burst under high loads and form nanoplatelets which attach themselves at the material surfaces of closest contact, effectively leading to local "nanocoating" which results in friction coefficients identical to those of lubricants based on MoS2 platelets. The breakup process always starts from the innermost tube, which opens the possibility to tune the nanomaterials to be effective at well-defined loads.

Original languageEnglish
Pages (from-to)17764-17767
Number of pages4
JournalJournal of Physical Chemistry C
Volume112
Issue number46
DOIs
Publication statusPublished - 2008 Nov 20

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Fingerprint

Dive into the research topics of 'Nanolubrication: How do MoS<sub>2</sub>-based nanostructures lubricate?'. Together they form a unique fingerprint.

Cite this