Recent advances in the synthesis and application of amorphous carbon nitride: A new protective overcoat for computer hard disk surfaces

Beizhi Zhou*, Yip-Wah Chung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Using conventional magnetron sputtering of graphite in an argon/nitrogen plasma, one can synthesize amorphous carbon nitride coatings. By controlling the total pressure, the nitrogen partial pressure and the substrate bias during film growth, one can obtain amorphous carbon nitride with hardness ~25-30 GPa and surface roughness below 0.2 nm. When used as a wear protective coating on hard disks and steel surfaces, one achieves a wear life improvement of a factor of three to ten over conventional coatings such as titanium nitride and amorphous carbon, respectively.

Original languageEnglish (US)
Pages (from-to)589-596
Number of pages8
JournalJapanese Journal of Tribology
Volume43
Issue number5
StatePublished - Dec 1 1998

Keywords

  • Carbon nitride
  • Hard coatings
  • Hard disk overcoat
  • Magnetron sputtering
  • Nanoindentation
  • Thin films
  • Tribology
  • Wear

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Materials Chemistry

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