2011 · 11 citations · 7 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCeramicsNanomaterialsBone Matrix CompositionBone TissueCalcium Phosphate BiomaterialsCalcium Phosphate MaterialsCeramic BiomaterialsDental CeramicsChemical PrecipitationCrystallite Size AnalysisCrystallite Size DeterminationHydroxyapatitePhase CompositionPowder X-ray DiffractionPrecipitation ReactionsX-ray Diffraction Analysis
In this paper we present a synthesis method for obtaining hydroxyapatite nanopowders by chemical precipitation. As the starting reagents, analytical grade Ca(OH)2, H3PO4 and NH4OH were used. . In order to study the factors that have an important influence on the chemical precipitation process a experimental platform has been designed for hydroxyapatite synthesis. The experimental platform was designed and developed in order to study the factors involved in chemical precipitation reactions of hydroxyapatite such as synthesis temperature, stirring speed, acid addition rate, aging time of precipitates etc. The proposed method led to obtaining a hydroxyapatite with a high degree of crystallinity. In order to investigate phase composition, crystallinity and crystallite size, the thermal treated powder samples has been characterized by X- ray diffraction
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