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Break-away friction of PTFE materials in lubricated conditions
Luleå University of Technology, Division of Machine Elements.
2011 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 48, 54-62 p.Article in journal (Refereed) Published
Abstract [en]

This study investigates the tribological characteristics at initiation of sliding (break-away friction) of several polytetrafluoroethylene based materials. Four PTFE composites, pure PTFE, and white metal were tested in a reciprocating tribo-meter with the block on plate configuration against a steel counter-surface. Apparent contact pressure and oil temperature were varied from 1 to 8 MPa and 25 to 85 Â°C respectively. SEM investigations revealed wear patterns of the PTFE materials and the abrasive nature of hard fillers. Bronze filled, carbon filled, and pure PTFE were found to provide lower break-away friction and less variation over the course of testing and generally superior properties.

Place, publisher, year, edition, pages
2011. Vol. 48, 54-62 p.
Keyword [en]
Friction, PTFE, Babbitt, Break-away
National Category
Tribology
Identifiers
URN: urn:nbn:se:kth:diva-79615DOI: 10.1016/j.triboint.2011.03.025ISI: 000302394700009Scopus ID: 2-s2.0-84857238721OAI: oai:DiVA.org:kth-79615DiVA: diva2:495762
Note
QC 20120217Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2017-12-07Bibliographically approved

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