Abstract
Molecular dynamics simulations have been performed to explore the atomic-scale sliding friction, especially the stick-slip friction, in a system consisting of a diamond slider and a silver substrate. The mechanisms of the stick-slip behavior are investigated by considering sliding speeds between 10 m/s and 200 m/s. The analyses of the shear distance between the upmost layer and the downmost layer and displacements of a column of atoms in the slider show that shearing deformation of the slider is the main cause of the stick-slip phenomenon. Our simulations also present that a commensurate fit between the two contact surfaces is unimportant for the stick-slip friction.
Original language | English |
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Pages (from-to) | 4555-4559 |
Number of pages | 5 |
Journal | Chinese Science Bulletin |
Volume | 54 |
Issue number | 24 |
DOIs | |
Publication status | Published - Dec 2009 |
Externally published | Yes |
Keywords
- Atomic-scale friction
- Molecular dynamics simulation
- Shearing deformation
- Stick-slip