Preparation and Blood Compatibility of Multilayers on the Surface of Medical NiTi Alloy

Hong Hong Shao; Xue Li Liu; Zi Hong Zhu

doi:10.4028/www.scientific.net/MSF.852.1206

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HomeMaterials Science ForumMaterials Science Forum Vol. 852Preparation and Blood Compatibility of Multilayers...

Preparation and Blood Compatibility of Multilayers on the Surface of Medical NiTi Alloy

Abstract:

In this paper, the TiO₂film 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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Periodical:

Materials Science Forum (Volume 852)

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1206-1212

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.852.1206

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Online since:

April 2016

Authors:

Hong Hong Shao*, Xue Li Liu, Zi Hong Zhu

Keywords:

Anodic Oxidation, Kinetic Clotting Time, NiTi Alloy, Platelets Adsorption, RF Magnetron Sputtering

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