Mechanical Interaction between Vitamin E-Containing Ultrahigh Molecular Weight Polyethylene and Co-28Cr-6Mo Alloy in Water
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概要
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The mechanical interaction between ultrahigh molecular weight polyethylene (UHMWPE) and a Co-28Cr-6Mo alloy in water was examined in order to clarify the wear resistance mechanism of vitamin E-containing UHMWPE in knee prostheses. The sample UHMWPE was pressed and rubbed against the surface of the Co-28Cr-6Mo alloy in water by using a computer-controlled pin-on-disk wear test apparatus. The formation of a UHMWPE transfer film on the surface of the Co-28Cr-6Mo alloy was reduced by the addition of vitamin E to UHMWPE. The pull-away force between UHMWPE and the Co-28Cr-6Mo alloy was also reduced by the addition of vitamin E. These results suggest that vitamin E reduces the attraction between UHMWPE and the surface of the Co-28Cr-6Mo alloy.
著者
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Tomita Naohide
Graduate School Of Engineering Kyoto Univ.
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Mori Shin-ichiro
Graduate School Of Engineering Fukui Univ.
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Ikeuchi Ken
Department Of Mechanical Engineering Faculty Of Engineering Kyoto University
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Yamamoto Koji
Graduate School Of Informatics Kyoto University
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Fujiwara Kunihiko
Nakashima Medical Co. Ltd.
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HAMADA Daisuke
Graduate School of Engineering, Kyoto University
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OKUBO Yasushi
Graduate School of Engineering, Kyoto University
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KOHNO Hiroyuki
NextMED Development Office, Yasojima Proceed Corporation
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HASHIMOTO Masato
Graduate School of Science and Technology, Kyoto Institute of Technology
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Tomita Naohide
Graduate School of Engineering, Kyoto University
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IKEUCHI Ken
Department of Clinical Engineering, Suzuka University of Medical Science
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YAMAMOTO Koji
Graduate School of Engineering, Osaka University
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