材料科学
X射线光电子能谱
拉曼光谱
扫描电子显微镜
傅里叶变换红外光谱
等离子体增强化学气相沉积
分析化学(期刊)
阴极
无定形固体
化学工程
复合材料
化学气相沉积
纳米技术
光学
物理
工程类
物理化学
色谱法
有机化学
化学
作者
Saad M. Fayed,Dongxu Chen,Shengli Li,Yanwen Zhou,Hongbin Wang,M.M. Sadawy
标识
DOI:10.1016/j.surfcoat.2021.128001
摘要
In this research, multilayer DLC-Si films were effectively formed on the 2024 Al alloy utilizing cage-like hollow cathode discharge plasma-enhanced chemical vapour deposition (PECVD). A scanning electron microscopy (SEM), atomic force microscope (AFM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and Nano Indenter G200 device were utilized to characterize the microstructural features of the coatings. Various electrochemical methods were used to investigate the anticorrosion performance of DLC films in 3.5 wt% electrolytic solution. The findings revealed that an increment in the bias voltage increases the condensation of the DLC layer and increments the thickness of the coatings. Furthermore, the outcomes revealed that the anodic current density and passive current decrements with an increment of bias voltage. This behavior is attributable to a good barrier impact of the amorphous DLC film. The multilayer film introduces new interfaces, resulting in the deterrence of Cl− ions penetrations. Further, the values of activation energy (∆E), enthalpy (∆H), and entropy of activations (∆S) for the samples in 3.5 wt% NaCl were determined and presented.
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