Fabrication and characterisation of porous coatings obtained by plasma electrolytic oxidation
In the paper, characteristics of porous coatings enriched in copper on pure Titanium and its alloys (NiTi, Ti6Al4V, TNZ, Ti2448) as well as on niobium obtained by Plasma Electrolytic Oxidation (PEO) in electrolyte containing H3PO4 within Cu(NO3)2, are presented. All obtained surfaces of PEO coatings have different shapes and diameters of pores. The binding energies of main peaks for titanium Ti2p3/2, niobium Nb3d5/2, zirconium Zr3d5/2, phosphorus (P2p) and oxygen (O1s) suggest the presence of titanium Ti4+, niobium Nb5+ and zirconium Zrx+ (x≤2) as well as PO43–.
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