Preparation and Corrosion of Biodegradable Iron Based Porous Materials

Abstract

New porous materials based on iron were suggested. They were prepared by loading of a polyurethane foam by mixture of iron and other metal powders (Mg and/or Si) and by annealing of the samples in nitrogen atmosphere. Their fundamental behaviour in physiologic solutions, their modifications and in blood plasma was tested. Usually, the increase of doping level yielded in increased corrosion rate and in partial passivation. Addition of hydrogen peroxide increased corrosion rate.