Abstract
The authors report the direct observation of a single asperity tungsten tip sliding on graphite by in situ transmission electron microscopy (TEM) nanomanipulation. The in situ TEM studies have confirmed that graphitic flakes transfer to a sliding tungsten probe, validating proposed friction mechanisms explaining the unique tribological properties of graphite. Wear of graphite was observed, typically removing sheets of graphite on the order of ten basal planes in thickness. Consistency between wear flake thickness and interfacial dislocation standoff distances is discussed.
| Original language | English (US) |
|---|---|
| Article number | 064101 |
| Journal | Applied Physics Letters |
| Volume | 90 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2007 |
Funding
This work was supported by the National Science Foundation on Grant No. DGE-0114429, the Air Force Office of Scientific Research on Grant No. 49620-03-1-0092, and was carried out in the Electron Microscopy Center at Argonne National Laboratory, which is supported by the DOE Office of Science under Contract No. W-31-109-Eng-38.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)