Abstract
ABSTRACT Titanium and its alloys, and Niobium are widely employed for implants. Their superficial properties are responsible for a suitable interaction between metal and tissue. A bioactive layer to resemble the bone structure can be generated by plasma electrolytic oxidation (PEO). This study aims to obtain bioactive hydroxyapatite (HAp) layers in one-step processing, characterizing and evaluating the resulting layers of pure titanium, Ti-30Nb-8Zr, and niobium, immersed in electrolyte composed of 80% calcium acetate monohydrate and 20% phosphoric solution, applying voltages of 250, 300, and 350 V. The layers were characterized by Scanning Electronic Microscope (SEM), Energy Dispersive Spectrometry (EDS), X-Ray Diffractometer (XRD), wettability, and surface roughness. Results showed that all coating layers were microrough, with interconnected pores and incorporation of calcium and phosphorus ions. The obtained coatings on Niobium and Ti-30Nb-8Zr, both processed using 350 V, contain bioactive HAp.
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