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- W4223467327 abstract "Diamond-like carbon (DLC) films (thickness: ∼118 nm) doped with Al and N on AISI 4140 steel were synthesized using a filtered cathodic vacuum arc technique. The adhesion and corrosion of the ta-C, ta-C:N, ta-C:Al, and ta-C:Al:N films were examined in terms of structure and bonding. X-ray reflectivity, X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy revealed that the Al-doped and Al and N co-doped films had lower densities and internal stresses than the other films, as indicated by their higher I D /I G ratios and graphite cluster size ( L a ) and lower sp 3 relative fractions. All DLC films exhibited improved corrosion resistance as compared to AISI 4140, as indicated by their decreased corrosion rate and increased corrosion potential and polarization resistance. The corrosion resistances of ta-C:Al:N and ta-C:Al films were high owing to the combined effect of sp 3 C–N and Al 2 O 3 , as confirmed by near-edge X-ray absorption fine structure spectroscopy and XPS. All doped DLC films exhibited improved adhesion performance compared to the ta-C film owing to their improved lubrication performance (increased sp 3 -hybridized C–N bonds) and improved toughness (formation of Al 2 O 3 ). • Dopants reduced the sp 3 fraction and density of DLC films. • DLC films improved the corrosion resistance of AISI 4140 in 3.5 wt% NaCl. • Al-N co-doping improved the crack propagation resistance of ta-C. • The ta-C:Al:N film exhibited corrosion resistance and adhesion strength. • Al 2 O 3 and sp 3 C –N bonding improved the corrosion and adhesion performances of ta-C." @default.
- W4223467327 created "2022-04-15" @default.
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- W4223467327 date "2022-07-01" @default.
- W4223467327 modified "2023-09-24" @default.
- W4223467327 title "Adhesion and corrosion of Al–N doped diamond-like carbon films synthesized by filtered cathodic vacuum arc deposition" @default.
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- W4223467327 doi "https://doi.org/10.1016/j.ceramint.2022.04.055" @default.
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