Abstract
In this paper, the TiO2 film and Ti/TiN/TiO2 multilayers were prepared by anodic oxidation and RF magnetron sputtering technology on surface of NiTi shape memory alloy, respectively. The structure and surface morphology of films were systematically studied by X ray diffracmeter (XRD) and scanning electron microscope (SEM); blood compatibility was researched by kinetic clotting time and platelets adsorption experiment. The result showed that, blood compatibility was improved in varying degrees after surface treatment. And the multilayer which was deposited on NiTi alloy by RF reactive magnetron sputtering after the method of constant voltage anodization had optimal Anti-clotting properties.
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