Mechanical and tribological properties of diamond-like carbon coatings films deposited from an electron cyclotron resonance plasma

  • Racine B
  • Benlahsen M
  • Zellama K
 et al. 
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Abstract

The friction coefficients have been investigated in amorphous diamond-like carbon (DLC) films deposited by a dual ECR-r.f. method, as a function of r.f. substrate bias in relation with the H content and bonding. Combined infrared absorption, elastic recoil detection analysis and tribological tests are used to characterize fully the films in their as-deposited state. Friction coefficients (μ) of the coatings against sapphire balls are determined in air at room temperature. The results indicate clearly that the samples exhibit high compressive stresses and the friction coefficients are found to be low and are affected by the magnitude of the biaxial stress and the microstructure of the films.

Author-supplied keywords

  • Diamond-like carbon films
  • ECR plasma deposition
  • Mechanical properties
  • Tribological properties

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