EFFECT OF SYNTHETIC CONDITIONS ON MORPHOLOGY AND COMPOSITION OF CARBONATE-CONTAINING HYDROXYAPATITE HYDROTHERMALLY SYNTHESIZED FROM CALCIUM CARBONATE

Abstract

Carbonate-containing hydroxyapatite (CHA) particles were synthesized by the hydrothermal treatment of calcium carbonates with phosphate-containing solutions. The influence of synthesis conditions in the hydrothermal synthesis of CHA from calcium carbonate on the morphology and composition has been investigated. Morphological changes in CHA particles were observed depending on the crystal phase and size of starting materials and the pH of solutions. The character of the starting material and pH of the treatment solution were highly important factors to control the morphology and composition of the synthesized CHA.