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HYDROTHERMAL SYNTHESIS OF CRYSTALLINE HYDROXYAPATITE ULTRAFINE PARTICLES
Authors:E. Sada   H. Kumazawa  Y. Murakami
Affiliation: a Department of Chemical Engineering, Kyoto University, Kyoto, Japan
Abstract:Crystalline hydroxyapaiite ultrafine particles were synthesized by hydrothermal treatment of the same powders prepared by mining aqueous ratio of Ca to P (1·67) at room temperature. The relations of the particle size and shape to such operating conditions as hydrothermal temperature, Ca(NO3) 2 concentration, stirring speed and treatment time were investigated systematically. A mechanism of particle growth was proposed.
Keywords:Hydroxyapatite  Ultrafine particle  Hydrothermal synthesis  X-ray diffraction
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