Tribology of carbon nitride coatings

Koshi Adachi, Koji Kato

Research output: Chapter in Book/Report/Conference proceedingChapter

18 Citations (Scopus)


Carbon nitride (CNx) coatings exhibit a wide range of very attractive properties (such as low friction and wear, high hardness, good thermal and chemical stability, etc.) which make them very suitable for demending mechanical and tribological applications. During sliding against uncoated silicon nitride (Si3N4) and CNx-coated Si3N4 in gaseous nitrogen atmosphere or in nitrogen gas flow, it provides superlow friction and wear. The beneficial effect of nitrogen on reducing friction and wear is much more pronounced if the portion of the runningin period is carried out in air or in oxygen before introducing nitrogen to the sliding interface. In this chapter, we will provide a comprehensive overview of the unique tribological properties of CNx coatings in general and the effects of various gaseous environments on these properties in particular.

Original languageEnglish
Title of host publicationTribology of Diamond-Like Carbon Films
Subtitle of host publicationFundamentals and Applications
PublisherSpringer US
Number of pages33
ISBN (Print)9780387302645
Publication statusPublished - 2008


  • carbon nitride
  • gaseous nitrogen
  • low friction
  • low wear
  • tribolayer

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemistry(all)


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