Tribological properties of carbon/carbon composites with various pyrolytic carbon microstructures

Shu Yu, Fuqing Zhang, Xiang Xiong, Yunping Li, Ning Tang, Yuichiro Koizumi, Akihiko Chiba

研究成果: Article査読

23 被引用数 (Scopus)

抄録

Tribological properties of carbon/carbon composites with various pyrolytic carbon microstructures have been investigated. Three kinds of samples characterized by rough laminar (IT-a), smooth laminar (IT-b) and duplex microstructure containing both rough laminar and smooth laminar (TG-c) structures were used in the current study. The minimum coefficient of friction was observed for the IT-b sample, for which the amount of abrasion due to oxidation was the highest because it had the highest hardness and because no compact smooth film formed on the friction surface. Continuous film formation on the friction surface is dominant in the samples with rough laminar structures (IT-a and TG-c) for their hardnesses below a certain value. The coefficient of friction is associated with the interfacial shear strength and the surface hardness of carbon/carbon composites and is relatively stable when the friction film formation and abrasion wear reach an equilibrium state.

本文言語English
ページ(範囲)103-108
ページ数6
ジャーナルWEAR
304
1-2
DOI
出版ステータスPublished - 2013 7月 5

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

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