Effect of nitrogen on tribological properties of amorphous carbon films alloyed with titanium

J. Musil, M. Hromadka, Petr Novák

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The article reports on the dependency of friction and wear of a-(Ti,C,N) films on the nitrogen content. The amount of nitrogen N in the film was controlled by partial pressure of nitrogen pN2 in the Ar+N2 sputtering gas mixture. It is shown that the incorporation of N in the film results in the increase of (i) the coefficient of friction μ (increases from 0.12 to 0.37), (ii) the coefficient of wear k (increases from 0.16×10-6 to 0.93×10-6mm3/Nm) and the decrease of (i) the film hardness H, (ii) effective Young's modulus E*, (iii) the elastic recovery We of film and (iv) the ratio H/E*. The changes of μ and k of the a-(Ti,C,N) film correlate well with changes of the film mechanical properties (H and E*) and its mechanical behavior (We, H/E* and the ratio H3/E*2) characterizing the film resistance to plastic deformation.

Original languageEnglish
JournalSurface and Coatings Technology
Volume205
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 25 Jul 2011

Fingerprint

Carbon films
Amorphous carbon
Amorphous films
Titanium
Nitrogen
titanium
nitrogen
carbon
Wear of materials
Friction
Gas mixtures
Partial pressure
coefficient of friction
plastic deformation
Sputtering
partial pressure
gas mixtures
Plastic deformation
modulus of elasticity
friction

Keywords

  • Friction
  • Mechanical properties
  • Reactive magnetron sputtering
  • Ti(N,C)/a-C films
  • Wear

ASJC Scopus subject areas

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

Cite this

Effect of nitrogen on tribological properties of amorphous carbon films alloyed with titanium. / Musil, J.; Hromadka, M.; Novák, Petr.

In: Surface and Coatings Technology, Vol. 205, No. SUPPL. 2, 25.07.2011.

Research output: Contribution to journalArticle

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