Synthesis and mechanical properties of crystalline carbon nitride superhard coatings

Yip-Wah Chung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Crystalline β-C3N4 was predicted to have mechanical properties similar to those of diamond. Until recently, only amorphous carbon nitride coatings were made in spite of numerous attempts. This lack of success in making crystalline coatings suggests that β-C3N4 is metastable. Using TiN as seeding layers and under proper processing conditions, we were able to synthesize fully crystalline carbon nitride composite coatings with hardness in the 45-55 GPa range, which is at the low end of diamond. Suggestions for further improvements and implementation with other deposition techniques will be made.

Original languageEnglish (US)
Pages (from-to)1597-1602
Number of pages6
JournalSurface Review and Letters
Volume3
Issue number4
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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