Silicate-substituted hydroxyapatite bioceramics fabrication from the amorphous powder precursor obtained from the silicate-containing solutions

The mixed-anionic solution synthesis was applied to obtain X-ray amorphous powder precursor of silicon-substituted hydroxyapatite (Si-HAp) for macroporous bioceramics fabrication. Proposed technique was proven to provide small particle size up to 1 µm, as well as homogeneous components distribution in the final Si-HAp ceramics. A possible pathway of the Si-HAp formation under gradual heating up to 1000 °C was discussed.