Friction of Teflon-S-coated Ti-6Al-4V under conditions of oscillatory relative motion

Ligterink, D.J. and Verkerke, G.J. and Gee de, A.W.J. (1990) Friction of Teflon-S-coated Ti-6Al-4V under conditions of oscillatory relative motion. Tribology International, 23 (5). pp. 346-350. ISSN 0301-679X

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Abstract:	An extendable prosthesis for implantation in a human leg has been developed. The friction forces during extension of the prosthesis must be low, so a coating of Teflon-S was applied to the sliding surfaces. During walking, damage can occur as a result of oscillatory relative motion. Therefore experiments were performed with an apparatus which simulated this type of motion. It was found that the coefficient of friction reached a maximum value within one million movement cycles. This maximum value of the coefficient of friction increased with decreasing coating thickness. Even at an initial coating thickness of less than 1 μm, coating with Teflon-S was found to be very effective in reducing friction.
Item Type:	Article
Copyright:	© 1990 Elsevier Science
Faculty:	Engineering Technology (CTW)
Research Group:	Biomechanical Engineering (BE)
Link to this item:	http://purl.utwente.nl/publications/70608
Official URL:	http://dx.doi.org/10.1016/0301-679X(90)90008-D
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