Effects of steel counterface roughness and temperature on the friction and wear of PE(E)K composites under dry sliding conditions

K. Friedrich, J. Karger-Kocsis, Z. Lu

Research output: Contribution to journalArticle

116 Citations (Scopus)

Abstract

The friction and wear behavior of virgin polyetheretherketone (PEEK) and of polyetherketone (PEK) and PEEK composites, including different types and amounts of fiber reinforcement and/or lubricating agents, was studied as a function of steel counterface roughness and testing temperature. Roughness effects were more pronounced in the non-reinforced PEEK than in the fiber-filled versions. An increase in testing temperature resulted in higher specific wear rates and in lower coefficients of friction for the different materials tested. The incorporation of carbon fibers proved to be more beneficial than glass fibers with respect to both friction and wear performance. The composition with the highest resistance to wear at elevated temperatures (e.g. 220 °C) and a low coefficient of friction (μ -1 respectively) was a PEEK version containing 15 wt.% polytetrafluoroethylene (PTFE) particles and 15 wt.% graphite lubricant.

Original languageEnglish
Pages (from-to)235-247
Number of pages13
JournalWear
Volume148
Issue number2
DOIs
Publication statusPublished - Aug 15 1991

Fingerprint

PEEK
Steel
sliding
roughness
friction
Surface roughness
Wear of materials
steels
Friction
composite materials
Composite materials
coefficient of friction
Temperature
fibers
temperature
Graphite
polytetrafluoroethylene
Polytetrafluoroethylene
Testing
high resistance

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

Cite this

Effects of steel counterface roughness and temperature on the friction and wear of PE(E)K composites under dry sliding conditions. / Friedrich, K.; Karger-Kocsis, J.; Lu, Z.

In: Wear, Vol. 148, No. 2, 15.08.1991, p. 235-247.

Research output: Contribution to journalArticle

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