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- Title
Frictional Characteristics of Graphene Layers Using Molecular Dynamics Simulation.
- Authors
Fang, Te-Hua; Chang, Win-Jin; Tung, Fu-Yung
- Abstract
Molecular dynamics simulations of an atomic force microscope (AFM) probe scanning the surface of a five-layer graphene were conducted. The AFM-like scanning probe was modeled by a capped single-wall carbon nanotube. Note that interference with the graphene surface induced frictional behavior; moreover, the effects on the friction system of scanning velocity, probe direction and temperature were investigated. Wrinkling of the graphene surface became more apparent at higher temperatures, while stick-slip friction was more apparent at a lower temperature and a slower scanning velocity. The friction coefficient of the system was approximately 0.001. The molecular dynamics simulations were performed to study the friction characteristics of graphene layers. The effects on the friction system of scanning velocity, probe direction, and temperature were investigated. Wrinkling of the graphene surface became more apparent at higher temperatures, while stick-slip friction was more apparent at a lower temperature and a slower scanning velocity.
- Subjects
GRAPHENE; MOLECULAR dynamics; SIMULATION methods &; models; WRINKLE patterns; ATOMIC force microscopy; LOW temperatures
- Publication
NANO, 2016, Vol 11, Issue 9, p-1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S179329201650096X