skip to main content

Title: Temperature effects on the friction characteristics of graphene

An atomic force microscope is used to study the nanoscale frictional characteristics of graphene exfoliated onto weakly adherent silica substrates. Different from the decrease in the friction force with temperature for Si tips sliding on silica substrates, the friction forces for the same tip sliding on a graphene surface have an increasing trend with temperature. Through exploring the morphologies of graphene in both suspended and supported states and at different temperatures, it is found that surface fluctuations are the main reason behind the suppression of the thermal lubrication, which leads to an increase in the friction force with temperature.
Authors:
; ; ; ; ;  [1]
  1. Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189 (China)
Publication Date:
OSTI Identifier:
22483140
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMIC FORCE MICROSCOPY; FLUCTUATIONS; FRICTION; GRAPHENE; LUBRICATION; MORPHOLOGY; NANOSTRUCTURES; SILICA; SUBSTRATES; SURFACES; TEMPERATURE DEPENDENCE