Friction and wear of PTFE composites with different filler in high purity hydrogen gas

Yoshinori Sawae, Takehiro Morita, Kyota Takeda, Shugo Onitsuka, Jyo Kaneuti, Tetsuo Yamaguchi, Joich Sugimura

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


Single-filler polytetrafluoroethylene (PTFE) composites with different filler materials are prepared and their tribological characteristics are evaluated in gaseous hydrogen to investigate the tribological function of each filler material. The results indicated that glass fibre caused severe abrasion on the cast iron sliding counterface and hence increased wear in both the composite and counterface in hydrogen. The friction and wear characteristics of polyphenylene sulphide-filled PTFE in hydrogen are similar to those in ambient air because it formed a PTFE-based transfer film on the counterface regardless of the surrounding atmosphere. On the other hand, carbon fibre-filled PTFE indicates excellent low friction and low wear in hydrogen. In this case, both the composite surface and sliding counterface are covered with carbon-rich tribofilms.

Original languageEnglish
Article number106884
JournalTribology International
Publication statusPublished - May 2021

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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