6533b83afe1ef96bd12a7126
RESEARCH PRODUCT
Some aspects of formation and tribological properties of silver nanodumbbells.
Jelena ButikovaNatalia NovoselskaRünno LõhmusSven OrasSergei VlassovMikk AntsovBoris PolyakovIlmar KinkLeonid M. Doroginsubject
Materials scienceTribologySiliconNano ExpressScanning electron microscopeNanowirechemistry.chemical_elementNanochemistryNanotechnologySubstrate (electronics)TribologyCondensed Matter PhysicsSilver nanowiresContact mechanicsNanomanipulationMaterials Science(all)chemistryGeneral Materials ScienceComposite materialDisplacement (fluid)description
In this paper, metal nanodumbbells (NDs) formed by laser-induced melting of Ag nanowires (NWs) on an oxidized silicon substrate and their tribological properties are investigated. The mechanism of ND formation is proposed and illustrated with finite element method simulations. Tribological measurements consist in controllable real-time manipulation of NDs inside a scanning electron microscope (SEM) with simultaneous force registration. The geometry of NDs enables to distinguish between different types of motion, i.e. rolling, sliding and rotation. Real contact areas are calculated from the traces left after the displacement of NDs and compared to the contact areas predicted by the contact mechanics and frozen droplet models. PACS 81.07.-b; 62.25.-g; 62.23.Hj
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-12 | Nanoscale research letters |