Ti surface modification for biomedical applications

TL;DR

This paper explores a novel Ti surface modification method using Micro Arc Oxidation in molten nitrate salt at 280°C, aiming to improve surface properties for biomedical applications.

Contribution

It introduces a new MAO process in molten nitrate salt for Ti alloys, differing from traditional aqueous methods, and evaluates its effects on surface characteristics.

Findings

Enhanced surface morphology and chemical composition.

Improved corrosion resistance of Ti surface.

Potential benefits for biomedical applications.

Abstract

Micro Arc Oxidation (MAO) is an electrochemical approach for the surface treatment usually applied on so called valve metals such as Al, Mg and Ti. MAO is usually carried out an aqueous electrolyte, which involves a bath cooling and leads to the creation of surface contained components originated in the electrolyte. In current work, we applied a different approach of ceramic surface formation on Ti alloy used in biomedical applications. Here, MAO process conducted in molten nitrate salt at 280 deg C. The developed surface morphology, chemical and phase composition, and corrosion resistance were investigated and described in the work.