| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
|
|
|---|---|---|
| Page(s) | C2-847 - C2-849 | |
| DOI | https://doi.org/10.1051/jp4:1997256 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-847-C2-849
DOI: 10.1051/jp4:1997256
1 Department of Chemistry, University of Western Ontario London, Ontario, N6A 5B7, Canada
2 Imperial Oil Products Division, Sarnia Research Centre, P.O. Box 3022, Sarnia, Ontario N7T 7M1, Canada
3 Canadian Synchrotron Radiation Facility University of Wisconsin, Wisconsin 53589, U.S.A
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-847-C2-849
DOI: 10.1051/jp4:1997256
Application of XAFS in Tribology : P and S L-Edge XANES Spectroscopy of Antiwear Films
M. Kasrai1, Z. Yin1, M. Fuller1, G.M. Bancroft1, K. Fyfe2 and K.H. Tan31 Department of Chemistry, University of Western Ontario London, Ontario, N6A 5B7, Canada
2 Imperial Oil Products Division, Sarnia Research Centre, P.O. Box 3022, Sarnia, Ontario N7T 7M1, Canada
3 Canadian Synchrotron Radiation Facility University of Wisconsin, Wisconsin 53589, U.S.A
Abstract
Antiwear additives are added to engine oils in the form of Zinc dialkyl dithiophosphates (ZDDPs). They form an antiwear (tribochemical) film on the rubbing surfaces. High resolution P and S L-edge X-ray absorption near edge (XANES) spectroscopy has been used to characterize the chemical nature of the films formed under air and inert atmosphere. The total electron yield and fluorescence yield detection methods have been employed to investigate the near surface and bulk composition of the films.
© EDP Sciences 1997