Electrochemical performances of diamond-like carbon coatings on carbon steel, stainless steel, and brass

Samuel Sudibyo Hadinata, Ming Tsung Lee, Szu Jung Pan, Wen Ta Tsai, Chen Yi Tai, Chuan Feng Shih

研究成果: Article同行評審

23 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)412-416
頁數5
期刊Thin Solid Films
529
DOIs
出版狀態Published - 2013 二月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 表面和介面
  • 表面、塗料和薄膜
  • 金屬和合金
  • 材料化學

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