Item: Measuring the Coefficient of Friction of Polyethylen on Snow - Kinetic Friction on Snow
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Title: Measuring the Coefficient of Friction of Polyethylen on Snow - Kinetic Friction on Snow
Proceedings: Proceedings of the 2000 International Snow Science Workshop, October 1-6, Big Sky, Montana
Authors:
- Daniel Buhl [ Swiss Federal lnsitute for Snow and Avalanche Research ]
- Hansueli Rhyner [ Swiss Federal lnsitute for Snow and Avalanche Research ]
- Walter Ammann [ Swiss Federal lnsitute for Snow and Avalanche Research ]
Date: 2000
Abstract: Experiments were done in the freezing chamber with polyethylen specimens sliding on ice using a tribometer. The coefficient of friction was measured as a function of the surrounding temperature (varyied between -25°C and O°e) and the pressure on the slider (varyied between 50 MPa and 300 Mpa). The coefficient of friction is strongly depending on the temperature of the ice surface. It is on its minimum around -3°C. In the temperature range between -3°C and O°C the coefficient of friction is increasing with increasing temperature. In the temperature range between -3°C and -25°C the coefficient of friction is increasing with decreasing temperature. The results correspond well to the idea of three different components forming the overall kinetic friction. At low temperatures dry friction dominates, whereas with increasing temperature a more lubricated friction decreases the coefficient of friction and for even higher temperatures capillary drag effects increase the friction again.
Object ID: issw-2000-412-416.pdf
Language of Article: English
Presenter(s): Unknown
Keywords: coefficient of friction on snow, kinetic friction, tribology
Page Number(s): 412-416
Subjects: coefficient of friction polyethylen tribology
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