Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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A Study of Friction Characteristics according to the Morphology of Solid Transfer Film

고체윤활막 형상에 따른 마찰특성의 변화에 관한 연구

  • Lim, Hyun-Woo (Division of Materials Science and Engineering, Korea University) ;
  • Jang, Ho (Division of Materials Science and Engineering, Korea University)
  • 임현우 (고려대학교 재료금속공학부) ;
  • 장호 (고려대학교 재료금속공학부)
  • Published : 2000.11.01
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Abstract

Tribological properties of friction materials containing different volume ratios of solid lubricants (graphite and MoS$_2$) were studied using a pad-on-disk type friction tester. Morphology and thickness of the friction film were carefully examined to correlate the friction performance with the property of the friction film. Results showed that the friction materials containing 16vo1. % of graphite and 5 vol. % of MoS$_2$exhibited best friction stability among others. In particular, the thickness of the friction film decreased as the amount of MoS$_2$increased and severe friction oscillation was observed when the friction material contained MoS$_2$only (21 vol. %). Microscopic observations and friction tests suggested that the coherent thick transfer film improved the friction stability.

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