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Tribological Behavior of Automotive Brake Pads with Different Sizes of zircon Particles

마찰재에 사용되는 지르콘($ZrSiO_4$) 입자의 크기에 따른 마찰특성

  • Hong, Young-Suk (Department of Advanced Materials Engineering, Korea University) ;
  • Ko, Kil-Ju (Department of Advanced Materials Engineering, Korea University) ;
  • Park, Sang-Jin (Department of Advanced Materials Engineering, Korea University) ;
  • Jang, Ho (Department of Advanced Materials Engineering, Korea University)
  • 홍영석 (고려대학교 신소재공학과) ;
  • 고길주 (고려대학교 신소재공학과) ;
  • 박상진 (고려대학교 신소재공학과) ;
  • 장호 (고려대학교 신소재공학과)
  • Published : 2002.06.01

Abstract

Automotive brake pads with four different sizes of zircon particles (average sizes of 1㎛, 6㎛, 75㎛, and 140㎛, respectively) were investigated to evaluate the size effect of abrasive particles on friction performance. Results showed that the brake pads with the larger size of zircon particles tend to show better frictional stability and low pad wear. However, the rotor surface was severely abraded in the case of using larger zircon particles. On the other hand, the small zircon particles in the pads showed the fast increase of the coefficient of friction with friction force oscillation and the tendency was pronounced at low sliding speeds. The brake pads with small particle sizes also exhibited strong fade phenomena at elevated temperatures.

Keywords

References

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