✦ LIBER ✦
Lubricants under high local pressure: Liquids act like solids
✍ Scribed by M. H. Müser
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 259 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0933-5137
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✦ Synopsis
Abstract
A lubricant layer solidifies when it is confined between two walls at large normal pressures. The atomic scale motion that occurs when the two confining surfaces slide past each other induces flow in the lubricant layer that is akin of plastic flow. This results in friction‐velocity relationships similar to Coulomb’s law of friction. Moreover, the lubricant layer does not necessarily melt, even when the two solids are in stick slip motion. In this paper, atomic‐scale details of the plastic flow mechanism are investigated by means of molecular dynamics simulations.