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    题名: Anomalous Behavior of Load-Dependent Friction on Ultra-Nanocrystalline Diamond Film
    作者: Ramadoss Raadhika;Niranjan Kumar;Sitaram Dash;Ashok K. Tyogi;Lin, I. Nan;林諭男
    贡献者: 淡江大學物理學系
    日期: 2014-09
    上传时间: 2015-02-03 16:35:22 (UTC+8)
    出版者: Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
    摘要: Load dependent anomalous behavior of friction coefficient in ultra-nanocrystalline diamond (UNCD) film was investigated while sliding against SiC ball. At low and high loads, the friction coefficient was quite high. However, at intermediate loads, ultra- low friction coefficient 0.002 was measured. Raman analysis of sliding interfaces showed evolution of high fraction of a-C/sp2C=C bonding at low and high loads. This invariably results in occurrences of unsaturated carbon atoms which chemically forms strong bonding. However, wear rate does not follow the trend of friction coefficient and found to increase with load. Such a behavior indicates that friction coefficient depends on the nature of chemical bonding present at sliding interfaces.
    關聯: Advanced Engineering Materials 16(9), pp.1098–1104
    DOI: 10.1002/adem.201300515
    显示于类别:[物理學系暨研究所] 期刊論文

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