Tribological properties of nanocrystalline diamond films deposited by hot filament chemical vapor deposition

  • N. Kumar*
  • , K. Panda
  • , S. Dash
  • , C. Popov
  • , J. P. Reithmaier
  • , B. K. Panigrahi
  • , A. K. Tyagi
  • , Baldev Raj
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)

    Abstract

    The dependence of the structural and morphological properties of nanocrystalline diamond films grown by hot filament chemical vapor deposition on the substrate temperature was studied. Friction coefficients of these films were measured and found to vary from high to ultra low, depending on the chemical nature of the films i.e., sp2 and sp3 phase fractions. For all films, the friction coefficient was found to decrease with increase in sp2/sp3 phase fraction. Thewear rate follows the trend of the friction coefficient andwas likewise found to depend on the structural and morphological properties of the films. For all the films, the friction coefficient is found to decrease with normal load which is ascribed to sliding induced surface amorphization/graphitization.

    Original languageEnglish
    Article number032164
    JournalAIP Advances
    Volume2
    Issue number3
    DOIs
    Publication statusPublished - 09-2012

    All Science Journal Classification (ASJC) codes

    • General Physics and Astronomy

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