Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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A Study on Tribology Characteristics of Laser Patterned DLC Thin Films

Laser patterning된 DLC 박막의 Tribology 특성연구

  • Lee, Ji Seok (Department of Nano Fusion Technology, Pusan National University) ;
  • Kim, Dong Jun (Department of Nano Fusion Technology, Pusan National University) ;
  • Shin, Dong Chul (Department of Mechanical Engineering, Koje College) ;
  • Kim, Tae Gyu (Department of Nanomechatronics Engineering, Pusan National University)
  • 이지석 (부산대학교 나노융합기술학과) ;
  • 김동준 (부산대학교 나노융합기술학과) ;
  • 신동철 (거제대학교 기계공학과) ;
  • 김태규 (부산대학교 나노메카트로닉스공학과)
  • Received : 2020.01.10
  • Accepted : 2020.01.28
  • Published : 2020.01.30
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Abstract

In this study, the tribology of laser patterned DLC thin film was studied. DLC thin films were coated by RF-PECVD to improve the durability of tungsten carbide (WC) materials. DLC thin films have high hardness and low friction characteristics. Dot and line patterning was processed on the surface of DLC thin film with femtosecond laser, and the coefficient of friction was improved. As a result of ball on disk abrasion test, the hardness and friction coefficient of DLC thin films were much better than that of WC material. The friction coefficient of DLC thin film with dot patterning and line patterning showed better results. The excellent performance of the laser patterned DLC coating is appeared to reduce the coefficient of friction due to the reduction of surface contact area.

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References

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