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

Korean Tribology Society (한국트라이볼로지학회)
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Influence of counter-bodies on the tribological behavior of diamond-like carbon coatings

상대 마찰재에 따른 DLC 코팅의 트라이볼로지적 특성평가

  • Lee Dong Choon (Graduate School, Department of Mechanical Engineering, Kyungpook National University) ;
  • Yi Jin-Woo (Graduate School, Department of Mechanical Engineering, Kyungpook National University) ;
  • Kim Seock Sam (Department of Mechanical Engineering, Kyungpook National University)
  • 이동춘 (경북대학교 대학원 기계공학과) ;
  • 이진우 (경북대학교 대학원 기계공학과) ;
  • 김석삼 (경북대학교 기계공학부)
  • Published : 2003.11.01
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Abstract

Diamond-like carbon(DLC) films are considerable research interest because of their widespread applications as protective coatings in areas such as optical windows, magnetic storage disks, car parts, biomedical coatings and as micro-electromechanical devices(MEMs). DLC films were deposited on WC-Co by PECVD using Ar, $C_2H_4$ gas. Tribological tests were conducted using a ball-on-disk type tribometer in dry air. Three kinds of counter-bodies balls were used. The counter-bodies balls are SM45C, SUJ2 and $ZrO_2$(3.17mm in diameter). Wear rate of the samples were calculated after measuring the worn-out volume of the wear track. As results wear test, the higher hardness of counter-bodies, friction coefficient low. As result of XPS estimation, wear debris generated as an oxide lower the friction coefficient.

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