Tribological behavior of PEEK components with compositionally graded PEEK/PTFE surfaces |
| |
| Affiliation: | 1. Composite Laboratory, School of Materials Science and Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran;2. School of Materials Science and Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran;1. Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW, 2006, Australia;2. The King Abdulaziz City for Science and Technology, The National Centre for Building and Construction Technology, P O Box 6086, Riyadh, 11442, Saudi Arabia;1. Centre for Advanced Materials Technology, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia;2. The King Abdulaziz City for Science and Technology, The National Center for Building System, P O Box 6086, Riyadh 11442, Saudi Arabia;1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, China;2. Institute for Composite Materials (IVW), University of Kaiserslautern, Germany;1. Ghent University, Laboratory Soete, Technologiepark, 9052 Zwijnaarde, Belgium;2. Lehrstuhl für Verbundwerkstoffe,University of Kaiserslautern, Kaiserslautern, Germany |
| |
| Abstract: | PEEK is a high strength engineering thermoplastic that suffers from a high friction coefficient and a friction induced wear mode. Past studies with 10 μm PEEK and PTFE powders resulted in composite solid lubricant that (at the optimal composition) had a wear rate of k = 2 × 10?9 mm3/Nm with a friction coefficient of μ = 0.12. A compositional grading of PEEK and PTFE is implemented in this study to create a bulk composite with the functional requirements of component strength, stiffness and wear resistance while providing solid lubrication at the sliding interface. The tribological performances of three functionally graded PEEK components were evaluated on linear reciprocating, rotating pin-on-disk and thrust washer tribometers. Wear rates comparable to samples of the bulk solid lubricant and comparable or improved frictional performance were achieved by compositionally grading the near surface region of PEEK components. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
