Wear behavior of polymeric sealing material in gaseous hydrogen

Yoshinori Sawae, A. Yamaguchi, K. Nakashima, T. Murakami, Joichi Sugimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Wear behavior of polymeric sealing material sliding against austenitic stainless steel was evaluated within gaseous hydrogen atmosphere to ensure the durability and longevity of polymeric seals used in fuel cell vehicles and related hydrogen infrastructures. In this study, unfilled polytetrafluoroethylene (PTFE) was considered as a representative polymeric material for seals and its wear behavior was evaluated by using 3pin-on- disk wear tester coupled with the environmental test chamber. Results indicated that the specific wear rate of unfilled PTFE became significantly smaller in gaseous hydrogen compared with that in air. However, the specific wear rate further decreased in argon gas. Optical microscopy and XPS analysis of the disk specimen surface indicated that the wear behavior of PTFE highly depended on the transfer film formation on the sliding counterface. Notable influences of gaseous hydrogen on the formation process of PTFE transfer film and subsequent wear behavior could be postulated from XPS spectra.

Original languageEnglish
Title of host publication2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008
Pages15-17
Number of pages3
Publication statusPublished - 2009
Event2008 STLE/ASME International Joint Tribology Conference, IJTC 2008 - Miami, FL, United States
Duration: Oct 20 2008Oct 22 2008

Other

Other2008 STLE/ASME International Joint Tribology Conference, IJTC 2008
CountryUnited States
CityMiami, FL
Period10/20/0810/22/08

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Process Chemistry and Technology
  • Mechanical Engineering

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  • Cite this

    Sawae, Y., Yamaguchi, A., Nakashima, K., Murakami, T., & Sugimura, J. (2009). Wear behavior of polymeric sealing material in gaseous hydrogen. In 2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008 (pp. 15-17)