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Tribological Behavior of PEEK/PTFE Composites Reinforced with Carbon Fibers and Graphite

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  • معلومة اضافية
    • بيانات النشر:
      Multidisciplinary Digital Publishing Institute, 2022.
    • الموضوع:
      2022
    • نبذة مختصرة :
      In this study, poly (ether ether ketone) (PEEK)/polytetrafluoroethylene (PTFE) composites reinforced with carbon fibers (CFs) and graphite (Gr) were fabricated by compressive molding technology. The friction and wear properties of the PEEK/PTFE composites sliding against Si3N4 balls were investigated using ball-on-disk configuration under dry sliding conditions, and the morphologies of the worn surfaces were also observed with a scanning electron microscope (SEM) and a three-dimensional morphometer. The results indicated that the introduction of CFs significantly improved the tribological properties of the composites, but the friction coefficient of the PEEK/PTFE/CFs composites were higher than the pure PEEK/PTFE composites. However, it was found that a combinative addition of CFs and Gr creates an obvious synergetic effect of improving the friction-reducing and anti-wear abilities of the composites. The mechanisms of the improved tribological properties of the PEEK/PTFE/CFs/Gr composites were discussed based on the analysis of the worn surfaces and tribofilms.
    • File Description:
      application/pdf
    • ISSN:
      1996-1944
    • الرقم المعرف:
      10.3390/ma15207078
    • Rights:
      OPEN
    • الرقم المعرف:
      edsair.doi.dedup.....5bc6fdb80ed474e32c214ee479d50070