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A Study on the Tribological Characteristics of a Frying Pan Coated with PTFE and Nano-Diamond  

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)
Publication Information
Journal of Ocean Engineering and Technology / v.23, no.6, 2009 , pp. 99-104 More about this Journal
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
Poly Tetra Fluoro Ethylene (PTFE); Nano-Diamond; Tribology; Friction coefficient;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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