HDI-07 CONFORMATION AND FUNDAMENTAL PROPERTIES OF NOVEL LUBRICANT TA-30 FOR NEAR CONTACT MAGNETIC RECORDING(Head/Disk Interface and Tribology II,Technical Program of Oral Presentations)
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概要
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A novel perfluoropolyether (PFPE) lubricant called TA-30 has been developed recently. In this study, we have investigated the conformation of TA-30 on diamond-like carbon (DLC) thin films, by attempting the direct observation of a lubricant film by AFM using a fluoride probe. We also investigated the fundamental properties of a TA-30 lubricant film, such as its spreading characteristics, and the film thickness dependency of surface energy. Considering these experimental results, it is estimated that the conformation of TA-30 is quite different from that of conventional Ztetraol2000, and it adsorbs parallelly on the DLC surface with double layers. In addition, it is suggested that TA-30 has a thinner film thickness than Ztetraol2000 on the DLC surface and the second-layer lubricant molecules of TA-30 play a very important role as mobile lubricant fractions, resulting in a very-low-friction and very-low-spacing head-disk interface.
- 2009-06-17
著者
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TANI Hiroshi
Department of Mechanical Engineering, Kansai University, High Technology Research Center
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Tagawa Norio
Department Of Electrical Engineering Tokyo Metropolitan University
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Tani Hiroshi
Depart. Of Mechanical Engineering High Technology Research Center Kansai University
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Tagawa Norio
Depart. Of Mechanical Engineering High Technology Research Center Kansai University
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