Abstract
A calcium phosphate powder has been synthesized from aqueous 0.25, 0.5, and 1.0 M calcium lactate and ammonium hydrogen phosphate solutions atat a Ca/P = 1, without pH adjusting. According to X-ray diffraction data, the as-synthesized powder consisted of brushite (CaHPO4 · 2H2O) and octacalcium phosphate (Ca8(HPO4)2(PO4)4 · 5H2O). After heat treatment in the range 500–700°C, the powders were gray in color because of the destruction of the reaction by-product. The powders heat-treated in the range 500–700°C consisted largely of γ-Ca2P2O7. The ceramics prepared from the synthesized powders by firing at 1100°C consisted of β-Ca2P2O7 and β-Ca3(PO4)2.
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Original Russian Text © T.V. Safronova, V.I. Putlyaev, M.D. Andreev, Ya.Yu. Filippov, A.V. Knotko, T.B. Shatalova, P.V. Evdokimov, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 8, pp. 874–884.
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Safronova, T.V., Putlyaev, V.I., Andreev, M.D. et al. Synthesis of calcium phosphate powder from calcium lactate and ammonium hydrogen phosphate for the fabrication of bioceramics. Inorg Mater 53, 859–868 (2017). https://doi.org/10.1134/S0020168517080143
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DOI: https://doi.org/10.1134/S0020168517080143