A simple method to controlled synthesis of nano hydroxyapatite in different particle size

Synthesis processing factors are very important to impact on the performance of hydroxyapatite (HAP). The effect of the adding rate of the solution containing calcium and phosphor on the particle size of HAP was investigated in this paper. The results indicated that the particle size of HAP is controlled by the adding rate. A particle size of about 44 nm HAP is synthesized by the adding rate of 0.23 ml/s. The nucleation mechanism of HAP under the adding rates changing has been discussed.