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Microstructure and friction behaviour in nanocrystalline diamond films

  • Kalpataru Panda
  • , N. Kumar*
  • , S. R. Polaki
  • , B. K. Panigrahi
  • , S. Dash
  • , A. K. Tyagi
  • , I. Nan Lin
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    In this study, friction behaviour of as-deposited and N+ ion-implanted nanocrystalline diamond films was investigated. In as-deposited film, the friction coefficient in ambient and humid condition was 0.8. Such a high value is explained by the formation of strong bonds across the sliding interfaces. In contrast, under similar test condition, friction coefficient of N+ ion-implanted film was ∼0.07. The significant decrease in friction coefficient is ascribed to the formation of covalent CNx phase which limits the formation of strong bonds in sliding interfaces.

    Original languageEnglish
    Pages (from-to)886-905
    Number of pages20
    JournalPhilosophical Magazine
    Volume95
    Issue number8
    DOIs
    Publication statusPublished - 14-03-2015

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics

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