Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Effects of Steel Fiber, Zircon, and Cashew in the Brake Friction Materials on Creep Groan Phenomena

자동차 브레이크용 마찰재 내의 강철섬유, 지르콘, 캐슈가 크립 그론에 미치는 영향

  • Jang, Ho (Dept. of Material Scince and Engineering, Korea University) ;
  • Lee, Kang-Sun (Dept. of Material Scince and Engineering, Korea University) ;
  • Lee, Eun-Ju (Dept. of Material Scince and Engineering, Korea University) ;
  • Jeong, Geun-Joong (Advanced Material Research Team, R&D Center, Hankook Tire Co., Ltd.) ;
  • Song, Hyun-Woo (Advanced Material Research Team, R&D Center, Hankook Tire Co., Ltd.)
  • 장호 (고려대학교 신소재공학과) ;
  • 이강선 (고려대학교 신소재공학과) ;
  • 이은주 (고려대학교 신소재공학과) ;
  • 정근중 (한국타이어(주) 중앙연구소 신소재연구팀) ;
  • 송현우 (한국타이어(주) 중앙연구소 신소재연구팀)
  • Published : 2007.12.31
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Abstract

Friction characteristics of a low-steel friction material were examined to investigate creep groan phenomena. The amount of three ingredients (steel fiber, $ZrSiO_4$, cashew) were changed to produce test specimens using a constrained mixture design. Tribological properties of the friction material specimens were obtained by using a 1/5 scale dynamometer. Results showed that the amount of three different ingredients strongly affected the level of friction coefficient and the difference between the static friction coefficient and the kinetic friction coefficient $({\Delta}{\mu}).\;ZrSiO_4$ and steel fiber tended to increase the average friction coefficient and aggravated the stick-slip phenomena suggesting high creep groan propensity. On the other hand, cashew tended to decrease average friction coefficient and ${\Delta}{\mu}$.

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References

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