Linking Friction Scales from Nano to Macro via Avalanches
Journal Article
·
· Tribology Letters
Abstract
Steady-state fluctuations in the friction force of molybdenum disulfide (MoS 2 ), a prototypical lamellar solid, were analyzed experimentally for newton-scale forces and computationally via molecular dynamics simulations for nanonewton-scale forces. A mean field model links the statics and the dynamics of the friction behavior across these eight orders of magnitude in friction force and six orders of magnitude in friction force fluctuations (i.e., avalanches). Both the statistics and dynamics of the avalanches match model predictions, indicating that friction can be characterized as a series of avalanches with properties that are predictable over a wide range of scales.
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- NA0003525
- OSTI ID:
- 1873023
- Journal Information:
- Tribology Letters, Journal Name: Tribology Letters Journal Issue: 3 Vol. 70; ISSN 1023-8883
- Publisher:
- Springer Science + Business MediaCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
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