Obtención y caracterización de recubrimientos de biovidrio sobre la aleación de Mg AZ31

Biodegradable magnesium alloys have been studied because of their excellent mechanical properties and biocompatibility. The obstacle that these materials have is its high corrosion rate.

Once initiated the process, the pH around tissues rises, interfering with cell growth on the surface of the magnesium alloy. In order to improve the corrosion resistance, the application of protective coatings as an effective solution to this problem is used. A protective film designed for this purpose must have the following characteristics: (i) provide bioactivity required to facilitate bonding between the bone and the material (ii) be compact enough to retard penetration of physiological medium to the alloy facilitating regeneration bone (iii) to have sufficient cohesive strength and adhesion between the coating and the substrate to avoid the film cracking during implantation.