Abstract
This paper discussed the preparing process of hydroxyapatite fibers which were widely used as reinformcement for biomedical materials by homogeneous precipitation method. The needle-like hydroxyapatite crystals were synthesized in an aqueous system. They were transferred from precursors-dicalcium phosphate anhydrate and octacalcium phosphate crystals. The reaction conditions were well controlled in order to obtain crystals in given morphology. The products were characterized by X-ray powder diffractometry (XRD), scanning electron microscopy (SEM) and infrared spectroscopy(IR). They were verified to be hydroxyapatite crystals with needle-like in shape.
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