Tribological behavior under aggressive environment of diamond-like carbon films with incorporated nanocrystalline diamond particles

Nanocrystalline diamond (NCD) particles are incorporated into diamond-like carbon (DLC) films in order to prevent NCD-DLC electrochemical corrosion. In the current paper, tribological behavior of NCD-DLC films under aggressive solutions is discussed. DLC and NCD-DLC coated steel disks and coated and...

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Bibliographic Details
Published in:Surface & coatings technology 2011-10, Vol.206 (2-3), p.434-439
Main Authors: Marciano, F.R., Costa, R.P.C., Lima-Oliveira, D.A., Lobo, A.O., Corat, E.J., Trava-Airoldi, V.J.
Format: Article
Language:English
Subjects:
Aggressive environment
Atomic beam spectroscopy
Corrosion
Corrosion environments
Cross-disciplinary physics: materials science
rheology
Diamond-like carbon
Diamond-like carbon films
Exact sciences and technology
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Nanocrystalline diamond
Nanocrystals
Physics
Protective coatings
Steels
Surface treatments
Tribocorrosion
Tribology
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Summary:Nanocrystalline diamond (NCD) particles are incorporated into diamond-like carbon (DLC) films in order to prevent NCD-DLC electrochemical corrosion. In the current paper, tribological behavior of NCD-DLC films under aggressive solutions is discussed. DLC and NCD-DLC coated steel disks and coated and uncoated steel ball were used under rotational sliding conditions. Raman scattering spectroscopy analyzed the film's atomic arrangements and graphitization level before and after tribocorrosion tests. The NCD-DLC films confirmed to be effective in the corrosion wear resistance under corrosive environments. The results pointed that NCD-DLC films are promising corrosion protective coating in aggressive solutions for many applications. ► Nanocrystalline diamond (NCD) particles were incorporated in DLC films (NCD-DLC). ► NCD particles slightly increased sp3/sp2 ratio and the film roughness. ► NCD particles demonstrated to reduce DLC friction and wear. ► The friction of NCD-DLC films under aggressive environment was investigated.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2011.07.049