【摘 要】
：
Ti-Cu alloy has potential to be used in plastic surgery and dental implants due to its strong antibacterial properties,high strength and good corrosion resistance.In this paper,Ti-5Cu was anodic-oxidized to enhance the surface compatibility.The influence
【机 构】
：
School of Materials Science and Engineering,Key Laboratory for Anisotropy and Texture of Materials,E
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Ti-Cu alloy has potential to be used in plastic surgery and dental implants due to its strong antibacterial properties,high strength and good corrosion resistance.In this paper,Ti-5Cu was anodic-oxidized to enhance the surface compatibility.The influence of the oxidation on the corrosion resistance,antibacterial properties and biological properties was investigated.X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) results showed that a double-layer oxide coating with dense inner layer and porous outside layer was formed on Ti-Cu sample.The oxide coating consisted mainly of TiO2,CU2O and small amount of CuO,improved the corrosion resistance of Ti-Cu alloy by one order of magnitude due to the formation of the dense oxide inner layer,but high Cu ion release was detected.The plate count results showed that the antibac-terial activity of Ti-Cu sample was improved to ≥ 99％due to the comprehensive function of CuO and Cu2O in the coating and Cu2+ release.Cell test results showed that the coating exhibited good cell compatibility,the porous sur-face structure improved the adhesion of cells,and Cu ion release promoted the cell proliferation.
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