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

Paper TF-WeM11
Electron Spectroscopic Studies of Friction Modifier Thin Films

Wednesday, November 2, 2005, 11:40 am, Room 306

Session: Mechanical and Tribological Properties of Thin Films
Presenter: K.C. Wong, University of British Columbia, Canada
Authors: K.C. Wong, University of British Columbia, Canada
X. Lu, Kelsan Technologies Corp.
P.C. Wong, University of British Columbia, Canada
J. Cotter, Kelsan Technologies Corp.
D. Eadie, Kelsan Technologies Corp.
K.A.R. Mitchell, University of British Columbia, Canada
Correspondent: Click to Email
Friction modifier (FM) thin films are important for controlling friction at the wheel-rail interface of trains. Products on the market have progressed to date largely by empirical development. Accordingly we have initiated a program to investigate how FM model systems are affected by tribological experiments that simulate wheel-rail contact using a rolling disk-on-disk setup adjusted for designated pressure and creepage. This paper will report spectroscopic characterizations (with XPS, Raman and SAM) and thermogravimetric analyses for FM materials (e.g. MoS2, graphite, BN, WS2, ZnO, MoO3, talc, SnO2, polytetrafluoroethylene, polyimide and polyamide) and water-based emulsion polymers as binders, where the studies are made as a function of coefficient-of-friction, number of rolling cycles and temperature.