TY - JOUR
T1 - Electrochemical performances of diamond-like carbon coatings on carbon steel, stainless steel, and brass
AU - Hadinata, Samuel Sudibyo
AU - Lee, Ming Tsung
AU - Pan, Szu Jung
AU - Tsai, Wen Ta
AU - Tai, Chen Yi
AU - Shih, Chuan Feng
N1 - Funding Information:
The authors would like to thank the Bureau of Energy, Ministry of Economic Affairs of the Republic of China (Taiwan) for the financial support of this study, through contract no. 100-D0204-1 .
PY - 2013/2/1
Y1 - 2013/2/1
N2 - Diamond-like carbon (DLC) coatings have been deposited onto stainless steel, carbon steel and brass by plasma-enhanced chemical vapor deposition, respectively. Atomic arrangement, chemical structure, surface morphology and cross-section microstructure of the DLC coatings were examined by X-ray diffraction, Raman scattering spectroscopy and scanning electron microscopy. The electrochemical behaviors of the DLC coatings in 3.5 wt.% NaCl solution were investigated by performing an open circuit potential (OCP) measurement and a potentiodynamic polarization test. The experimental results showed that properly deposited DLC coatings could cause an increase of OCP by hundreds of millivolts and a reduction of anodic current density by several orders of magnitude as compared to that of the substrate. The results also demonstrated that electrochemical techniques could be used as tools to detect the soundness of the DLC coating by examining OCP and polarization curve, which varied with the form of defect and depended on the type of substrate.
AB - Diamond-like carbon (DLC) coatings have been deposited onto stainless steel, carbon steel and brass by plasma-enhanced chemical vapor deposition, respectively. Atomic arrangement, chemical structure, surface morphology and cross-section microstructure of the DLC coatings were examined by X-ray diffraction, Raman scattering spectroscopy and scanning electron microscopy. The electrochemical behaviors of the DLC coatings in 3.5 wt.% NaCl solution were investigated by performing an open circuit potential (OCP) measurement and a potentiodynamic polarization test. The experimental results showed that properly deposited DLC coatings could cause an increase of OCP by hundreds of millivolts and a reduction of anodic current density by several orders of magnitude as compared to that of the substrate. The results also demonstrated that electrochemical techniques could be used as tools to detect the soundness of the DLC coating by examining OCP and polarization curve, which varied with the form of defect and depended on the type of substrate.
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U2 - 10.1016/j.tsf.2012.05.041
DO - 10.1016/j.tsf.2012.05.041
M3 - Article
AN - SCOPUS:84873720797
SN - 0040-6090
VL - 529
SP - 412
EP - 416
JO - Thin Solid Films
JF - Thin Solid Films
ER -