Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on the Tribological Characteristics of a Frying Pan Coated with PTFE and Nano-Diamond

나노다이아몬드가 첨가된 프라이팬 불소수지코팅의 Tribological 특성 연구

  • Lee, Jin-Ho (Graduated School of Nano fusion technology, Pusan National University) ;
  • Kim, Hyun-Soo (R&D center, Sam-ho Precision) ;
  • Yoon, Han-Ki (Department of Mechanical Engineering, Dong-eui University) ;
  • Kim, Tae-Gyu (Dept. of Nano System & Process Engineering, Pusan National University)
  • 이진호 (부산대학교 나노융합기술대학원) ;
  • 김현수 (삼호정밀 기술연구소) ;
  • 윤한기 (동의대학교 기계공학과) ;
  • 김태규 (부산대학교 나노시스템공정공학과)
  • Published : 2009.12.31
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Abstract

PTFE has good mechanical and chemical stability at a wide range of temperatures and demonstrates a low friction coefficient value. PTFE is being used for self-lubricating parts in industry. But it shows a high wear rate. Thus, PTFE and nano-diamond powder were mixed into a composite and the wear properties of a PTFE coating layer on Al6061 was investigated. A ball-on-disk type of wear tester was used under a dry condition and different temperatures of oil. After the wear test, the wear track wasexamined by optical microscope. The PTFE-diamond showed the lowest friction coefficient (0.02) of all the lubricants in the experiments. The friction coefficient was shown to be directly related to the diamond powder in the PTFE coating. Adhesion estimations were performed by a scratch test, which is mainly used for coatings. The critical load between the coating and substrate was defined through analyses of the friction load, normal load curve, and acoustic emissions, along with optical microscope observations. The scratch test results showed that an import item (SWISS) gave the highest critical load values.

Keywords

References

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