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Characterization and blood compatibility of TiCxN1 − x hard coating prepared by plasma electrolytic carbonitriding |
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| Authors: | Yan-Xia Dong Qiang Chen Zhong-Xiao Song |
| Affiliation: | a Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, School of Chemistry and Materials Science, Xi'an 710062, China b Laboratory of Printing and Packing Material and Technology—Beijing Area Major Laboratory, Beijing Institute of Graphic Communication, Beijing 102600, China c State-key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China |
| Abstract: | A novel technique to form Ti(C, N) on titanium, named as plasma electrolytic carbonitriding (PEC/N) on cathode was successful used to prepare TiCxN1 − x coating. The structure, composition and morphology of the coating were characterized by XRD, XPS and SEM, respectively. The results indicated that TiC0.3N0.7 as a new species appears on the surface of the titanium plate, and the thickness of the coating with porous surface morphology increases with the treated time. The blood compatibility of the TiC0.3N0.7 coating was evaluated by haemolysis ratios, dynamic blood clotting test, plasma recalcification time and platelet adhesion. The results indicated that the blood compatibility of the plasma-treated titanium with TiCxN1 − x coating is significantly improved as compared to the original titanium. Additionally, the results derived from measurements of hardness and corrosion indicated that the coating has excellent mechanical and corrosion-resistant properties. |
| Keywords: | Plasma electrolytic carbonitriding TiCxN1 &minus x coating Blood compatibility |
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