AVS 46th International Symposium
    Nanometer-scale Science and Technology Division Wednesday Sessions
       Session NS-WeP

Paper NS-WeP2
Velocity Dependent Friction

Wednesday, October 27, 1999, 5:30 pm, Room 4C

Session: Poster Session
Presenter: J.A. Heimberg, Naval Research Laboratory
Authors: J.A. Heimberg, Naval Research Laboratory
K.J. Wahl, Naval Research Laboratory
I.L. Singer, Naval Research Laboratory
A. Erdemir, Argonne National Laboratory
G. Fenske, Argonne National Laboratory
Correspondent: Click to Email
Low friction, low wear diamond-like carbon (DLC)@footnote 1@ films have been studied under dry N@sub 2@ and dry air using a reciprocating tribometer. It was found that as the velocity decreased from mm's/sec to 10's µm/sec the friction coefficient dropped over an order of magnitude. The friction behavior was dependent on environment and counterface material. Tracks and balls have been analyzed for wear using optical and Raman microscopy. Conditions leading to the lowest friction will be discussed. The friction behavior can be quantitatively described in terms of gas adsorption models. @FootnoteText@ @footnote 1@ Work partially supported by the U.S. Department of Energy under Contract W-31-109-Eng-38. .