Study of (Zr,Ti)CN, (Zr,Hf)CN and (Zr,Nb)CN films prepared by reactive magnetron sputtering

M. Braic, M. Balaceanu, A. Vladescu, C. N. Zoita, V. Braic

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

(Zr,Ti)CN, (Zr,Hf)CN and (Zr,Nb)CN coatings, in which Ti, Hf and Nb were added to ZrCN base compound, have been prepared by reactive magnetron sputtering. The coatings, with two different non-metal/metal ratios, were comparatively investigated in terms of elemental and phase composition, texture, surface morphology, hardness and friction performance. It has been shown that the films exhibit nanocomposite structures, consisting of a mixture of crystalline metal carbonitride and amorphous carbon. As compared with ternary ZrCN coatings, the quaternary coatings were found to exhibit superior mechanical and friction characteristics. In general, the films with higher non-metal content revealed finer morphologies, higher hardness and lower friction coefficient. Depending on the coating type and non-metal/metal ratio, the hardness values ranged from about 21 to 29 GPa, being higher than those of ZrCN reference films. The coefficients of friction varied from 0.2 to 0.5, the lowest values being obtained for the coatings with the highest non-metal content.

Original languageEnglish
Pages (from-to)4092-4096
Number of pages5
JournalThin Solid Films
Volume519
Issue number12
DOIs
Publication statusPublished - 1 Apr 2011
Externally publishedYes

Keywords

  • (Zr,Hf)CN
  • (Zr,Nb)CN coatings
  • (Zr,Ti)CN
  • Composition and structure
  • Friction performance
  • Magnetron sputtering
  • Mechanical

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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