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ELECTROCHEMICAL METHODS AS PROMISING ROUTES FOR NANOSTRUCTURATION AND FUNCTIONALIZATION OF MATERIALS AND BIOMATERIALS

Lidia Benea

Abstract

Electrochemical method for the preparation of high-quality nanostructured surfaces and functionalization through active biomolecules electrodepositions are highlighted in this work. There are two applied electrochemical methods in order to obtain hybrid and nanocomposite structured layers or advanced functionalization of material surfaces: (i) electrochemical oxidation or anodization of materials resulting nanoporous or nanostructured oxide films and (ii) direct electrochemical synthesis by electrocodeposition process of nanocomposite layers. The main goal of the present paper is to make a summary of results obtained from applying electrochemical surface modification techniques in obtaining advanced functional surfaces and their properties characterization in terms of surface morphology, structure (SEM-EDX, XRD), roughness and layers thicknesses, corrosion, tribocorrosion as well as the mechanical properties as nanohardness or wear resistance. Electrodeposition and the combination of electrodeposition with other electrochemical processes as controlled oxide growth by anodization can lead to a large class of nanocomposite, nanostructured or hybrid layers and composite coatings (films) on different support materials and structures necessary for a future based on nanotechnology and nanomaterials to improve the surface properties of materials face of aggressive environments and degradation processes. Improving surface properties of materials for corrosion and tribocorrosion functional systems in specific environments give more valuable industrial and biomedical applications by increasing the efficiency and life cycle.

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DOI resolver: doi.org/10.5593/sgem2018/6.1/s24.026

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