Friction and wear of DLC films in hydrogen gas

    研究成果: Contribution to journalArticle査読

    5 被引用数 (Scopus)

    抄録

    In order to investigate the effects of hydrogen on friction and wear of DLC (Diamond-like carbon), reciprocating sliding tests were conducted with a-C:H (hydrogenated amorphous carbon) and ta-C (tetrahedral amorphous carbon) DLC films in controlled gas including hydrogen, air, argon and vacuum. The specimens were transferred to XPS (X-ray photoelectron spectrometer) for surface analysis without exposure to ambient air. It was found that ta-C DLC exhibited lower coefficient of friction and specific wear in hydrogen than in other environments, while a-C:H DLC showed lower friction in air and hydrogen. These results were discussed with the surface analysis with XPS. It was suggested that the low coefficient of friction depended on oxygen content on the sliding surfaces. It was also suggested that graphitization affected the friction, and that ta-C DLC graphitized less in hydrogen than in the other environments, which resulted in the low friction.

    本文言語英語
    ページ(範囲)701-709
    ページ数9
    ジャーナルToraibarojisuto/Journal of Japanese Society of Tribologists
    54
    10
    出版ステータス出版済み - 12 28 2009

    All Science Journal Classification (ASJC) codes

    • 材料力学
    • 機械工学
    • 表面および界面
    • 表面、皮膜および薄膜
    • 材料化学

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