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Copper-TFE friction at cryogenic temperatures

โœ Scribed by R.S. Bell; C. Kaferly Jones; F.R. Fickett

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
478 KB
Volume
24
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

Interfaces between metals and polytetrafluoroethylene (TFE) are common in cryogenic systems. In this paper we present results from measurements of the temperature dependence of the dynamic coefficient of friction between commercially pure copper and TFE. The effect of the copper surface finish was also determined. The effects of load and speed were evaluated over a small range, but nearly all data were taken at a surface speed of 5.4 cm s -1 with a load of 1.63 N cm -2. These values are typical of those encountered by the moving parts of some cryogenic machinery.

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