Nanolubrication: How Do MoS2-Based Nanostructures Lubricate?

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Milen Stefano - , Technische Universität Dresden, Bulgarian Academy of Sciences (Autor:in)
  • Andrey N. Enyashin - , Technische Universität Dresden, Russian Academy of Sciences (Autor:in)
  • Thomas Heine - , Jacobs University Bremen (Autor:in)
  • Gotthard Seifert - , Professur für Theoretische Chemie (Autor:in)

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.

Details

OriginalspracheEnglisch
Seiten (von - bis)17764–17767
Seitenumfang4
FachzeitschriftJournal of Physical Chemistry C, Nanomaterials and interfaces
Jahrgang112
Ausgabenummer46
PublikationsstatusVeröffentlicht - 2008
Peer-Review-StatusJa

Schlagworte