AVS 52nd International Symposium
    Thin Films Wednesday Sessions
       Session TF-WeM

Paper TF-WeM7
Synthesis of Carbon Films with Ultralow Friction in Dry and Humid Air

Wednesday, November 2, 2005, 10:20 am, Room 306

Session: Mechanical and Tribological Properties of Thin Films
Presenter: C.A. Freyman, Northwestern University
Authors: C.A. Freyman, Northwestern University
Y.F. Chen, Northwestern University
B. Zhao, Northwestern University
Y.W. Chung, Northwestern University
Correspondent: Click to Email
In this paper, we present experimental strategies of how one can synthesize smooth carbon films using sulfur doping with ultralow friction coefficients (µ< 0.01) in dry and humid air, with relative humidity up to 50%. Auger studies show the absence of water adsorption after room temperature water exposure of 100,000 Langmuirs. Thermal desorption studies suggest the formation of water multilayers even at very low exposures, indicating that the surface is hydrophobic, consisting with water contact angle measurements. Results from quartz crystal microbalance studies at ambient pressures will also be discussed.