Improvement of diamond-like carbon electrochemical corrosion resistance by addition of nanocrystalline diamond

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:342

Article

Marciano, F. R.^1,2  Almleida, E. C.¹  Bonetti, L. F.³  Corat, E. J.^1,2  Trava-Airoldi, V. J.^1,2 

[1] Inst Nacl Pesquisas Espaciais, BR-12227010 Sao Jose Dos Campos, SP, Brazil

[2] Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, SP, Brazil

[3] Clorovale Diamantes Ind Com Ltda, BR-12229390 Sao Jose Dos Campos, SP, Brazil

关键词: Diamond-like carbon;    Nanocrystalline diamond;    Electrochemical corrosion;   

DOI  :  10.1016/j.jcis.2009.11.023

来源: Elsevier

【 摘 要 】

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. (C) 2009 Elsevier Inc. All rights reserved.

【 授权许可】

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