Regensburg 2016 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 6: Tribology
O 6.4: Vortrag
Montag, 7. März 2016, 13:00–13:15, S053
Fundamental Surface-Analytical Investigations in Tribology: the Challenges of Studying Phenomena at Sliding Interfaces — •Filippo Mangolini1, Nitya N. Gosvami2, J. Brandon McClimon3, Medard Koshigan4, James Hilbert2, Jason A. Bares2,6, Dalia G. Yablon5, Julien Fontaine4, and Robert W. Carpick2 — 1School of Mech. Eng., University of Leeds, UK — 2Dep. of Mech. Eng. and App. Mech., University of Pennsylvania, USA — 3Dep. of Mat. Sci. and Eng., University of Pennsylvania, USA — 4LTDS, Ecole Centrale de Lyon, France — 5SurfaceChar LLC, USA — 6BorgWarner Powertrain Technical Center, Auburn Hills, USA
Tribology is the study of interacting surfaces in relative motion and the resulting phenomena of friction, lubrication, and wear. The rational design and synthesis of new, modified, and improved materials and lubricants, which can reduce energy and resource consumption in tribological applications, relies on the understanding of the phenomena occurring at sliding interfaces and controlling the observed tribological performance. A key step in the development of this understanding lies in applying advanced surface-analytical methods to the study of tribological materials and interfaces. In this talk, I will present recent experimental results focusing on fundamental surface-analytical investigations of: a) the thermally-induced structural transformations occurring in the near-surface region of a class of solid lubricants, namely amorphous carbon-based materials; and b) the growth of reaction layers formed by antiwear additives used in automotive engine lubricants, gear oils, and greases.