A metal coating of copper-titanium as potential biomaterials

ABSTRACTBioceramic coatings have been widely applied to biomaterials owing to their good biocompalibility and bioinert in clinic, however, their friability and limited mechanical properties on some medical devices restrict the applications. In this work, a copper-titanium metal coating as potential medical materials was prepared by physical vapor deposition (PVD) method, the ratio of copper-titanium atom was regulated by changing the different targets current. The phase structure, dimensions distribution and element content of the copper-titanium coating were determined by X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS) and energy dispersive spectrometer(EDS), respectively. The adherence strength between substrate and coating was characterized via nano-scratch test, and cell proliferation was employed to evaluate the biocompatibility. The results showed that the coating with various ratios of copper-titanium atom was obtained successfully. The copper distribution was uniform in the coating. ...