The Tribological Behaviours of PEEK and Peek Based Composites PEEK Under Sliding Contact


Zainab M. Shukur†,‡, K. D. Dearn†


†School of Engineering, Department of Mechanical Engineering, University of Birmingham, UK, B15 2TT

‡Department of Mechanical Engineering, University of Kufa, Iraq.

Corresponding Author Email: [email protected]

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper describes a study that studied the tribological behaviour of poly-ether-ether-ketone (PEEK) and composites polyether ether ketone carbon fibre 30% (PEEK CA30%) against AISI 52100 STEEL under non-lubrication and marginal lubrication conditions. The wear mechanisms and friction coefficient of PEEK and PEEK CA30% were tests under reciprocating sliding conditions with deionised Water, Ethylene Glycol, Silicone and base SN100 oil. Tribological measurements were performed with a pine on plate configuration on the tribometer high frequency (TE77). To examine the surface topography and wear mechanisms, an optical 3D micro-coordinate measurement microscope with Alicona G5 was used. Results explain how the lubrication affects tribological performance. The friction coefficient of PEEK450 was reduced with silicone lubricant, to 50% more than the SN100 oil lubricant, Whilst wear resistance for silicone and SN100 oil was similar, although wear resistance of the EEKP CA30% was the comparable for silicone and SN100 oil, in the silicone was the best lubricant. Results also discuss wear growth through the period, and surface morphology effects.