Electrodeposition behavior of hydroxyapatite on porous electrode composed of sintered titanium spheres

Abstract

Electrodeposition of HAp on a porous electrode of sintered titanium spheres has been studied. It took place only at the outer surfaces, but not at the inside of the porous electrode if the maximum size of spheres was 150 μm or lower. It is caused by the intricate fine structure of the electrodes composed of micro-sized titanium particles, which prevents the uniform current flow at the entire titanium surface. However, by applying pretreatments on titanium spheres electrode, deposition of HAp was remarkably improved in the following order; anodic film formation at 10 V