Zaslavskaya, L.V.Belousova, E.E.Radio, S.V.Vavilova, S.M.Kryuchkov, M.A.Ignatov, A.V.Poymanova, O.Yu.Rozantsev, G.M.2014-05-272014-05-272013Finely Dispersed Powders of Silicon-substituted Hydroxyapatite Obtained from Solutions [Текст] / L.V. Zaslavskaya, E.E. Belousova, S.V. Radio et al. // Nanomaterials: Applications & Properties (NAP-2013) : 3-rd International conference, Alushta, the Crimea, Ukraine, September 16-21, 2013 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2013. - V.2, No2. - 02PCN06http://essuir.sumdu.edu.ua/handle/123456789/35110Bioactive powders of silicon substituted hydroxyapatites containing 1.4-4.3 wt % Si were synthesized by precipitation from aqueous solutions of calcium nitrate and ammonium (sodium) hydrophospate. Tetra-ethoxysilane and sodium silicate in basic media were used as a source of silicon. Using scanning electron microscopy, surface morphology of the obtained products was studied. It has been found that procedure us-ing sodium silicate allows obtaining of materials with 100-200 nm particle size. Procedure that utilizes tet-raethoxysilane leads to 40-100 nm particles. Chemical, X-ray phase analysis and infrared spectroscopy of samples annealed at 900 °C indicate the formation of monophase crystalline products possessing apatite structure. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35110encneHydroxyapatiteBiomaterialsSynthesis from solutionSurface morphologyNanoparticlesPowderTheses