Friction and Wear Properties of Copper/Carbon/RB Ceramics Composite under Electrical Current

• Shibata Kei

  Graduate School of Engineering, Tohoku University

• Yamaguchi Takeshi

  Graduate School of Engineering, Tohoku University

• Yao Yuta

  Graduate School of Engineering, Tohoku University

• Yokoyama Nobuyuki

  East Japan Railway Company

• Mishima Junichiro

  East Japan Railway Company

• Hokkirigawa Kazuo

  Graduate School of Engineering, Tohoku University

抄録

Friction and wear properties of the copper/carbon/RB ceramics (Cu/C/RBC) composite were investigated under electrical current with and without arc-discharge. The weight fraction and the mean diameter of RB ceramics powder were 5 wt% and 4.9 μm, respectively, in the Cu/C/RBC composite. Friction tests were conducted with the block-on-ring friction apparatus. The Cu/C/RBC and the copper/carbon (Cu/C) composite, the conventional pantograph slider material of a railway current collector, were used as block specimens. Under electrical current without arc-discharge, the Cu/C/RBC composite showed 98% reduction in the specific wear rate of the block specimen, 23% reduction in that of the ring specimen, and 75% reduction in the friction coefficient over the conventional Cu/C composite. Under electrical current with arc-discharge, the Cu/C/RBC composite showed the wear resistance to arc-discharge equivalent to the conventional Cu/C composite.

収録刊行物

• Tribology Online

  Tribology Online 4 (5), 131-134, 2009

  一般社団法人 日本トライボロジー学会

キーワード

• arc-discharge
• electrical current
• composite
• friction
• pantograph slider
• RB ceramics
• wear

詳細情報

• CRID: 1390282680245994624
• NII論文ID: 130000136247
• DOI: 10.2474/trol.4.131
• ISSN: 18812198
• ISSN: 1881218X
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可