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  • Title: Improvement of diamond-like carbon electrochemical corrosion resistance by addition of nanocrystalline diamond.
    Author: Marciano FR, Almeida EC, Bonetti LF, Corat EJ, Trava-Airoldi VJ.
    Journal: J Colloid Interface Sci; 2010 Feb 15; 342(2):636-7. PubMed ID: 20018289.
    Abstract:
    Nanocrystalline diamond (NCD) particles were incorporated into diamond-like carbon (DLC) films in order to investigate NCD-DLC electrochemical corrosion resistance. The films were grown over 304 stainless steel using plasma-enhanced chemical vapor deposition. NCD particles were incorporated into DLC during the deposition process. The investigation of NCD-DLC electrochemical corrosion behavior was performed using potentiodynamic polarization against NaCl. NCD-DLC films presented more negative corrosion potential and lower anodic and cathodic current densities. The electrochemical analysis indicated that NCD-DLC films present superior impedance and polarization resistance compared to the pure DLC, which indicate that they are promising corrosion protective coatings in aggressive solutions.
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