Synthesis of Nanocrystalline Hydroxyapatite Nanorods via Hydrothermal Conditions

The effect of Ca(NO 3 ) 2 ·4H 2 O and (NH 4 ) 2 HPO 4 primary solutions as the starting materials in the synthesis of a calcium phosphate phase was examined. Therefore, wet chemical reactions were investigated in solution at different temperatures by hydrothermal conditions aimed at hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 , HAp) synthesis. The powders were investigated by XRD, SEM, FE‐TEM, HRTEM, EDAX, SAED, and FTIR. It is found that the HAp have diameters of 25–50 nm and lengths of 120�30 nm with different morphologies. As a matter of fact, the hydrothermal method guarantees the production of HAp for different applications.