| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8027816 | Surface and Coatings Technology | 2014 | 6 Pages |
Abstract
TiCN coatings with low carbon concentrations (0.99Â at.%-2.46Â at.%) were deposited on Si(100) wafers via co-sputtering titanium and graphite targets by using unbalanced magnetron sputtering. The influence of carbon content on the microstructure and electrochemical properties of TiCN coatings in simulated body fluid was analyzed. The results revealed that the amorphous carbon (a-C) was absent from TiCN coatings (0.99Â at.% or 2.05Â at.% carbon), which exhibited favorable corrosion resistances in SBF. But the presence of a-C in TiCN coating (2.46Â at.% carbon) lowered its hardness, and subsequently deteriorated its corrosion resistance in SBF. In particular, the TiCN coating with 2.05Â at.% carbon presented the higher charge transfer resistance (Rct) as compared with the TiCN coating (0.99Â at.% carbon) owing to more a-CNx and higher electrical resistivity.
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Authors
Qianzhi Wang, Fei Zhou, Zhifeng Zhou, Lawrence Kwok-Yan Li, Jiwang Yan,