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Ceramics Based on Powder Mixtures Containing Calcium Hydrogen Phosphates and Sodium Salts (Na2CO3, Na4P2O7, and NaPO3)

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Abstract

Ceramic materials in the Na2O–CaO–P2O5 system have been produced using powder mixtures containing calcium hydrogen phosphates (monetite/brushite: CaHPO4/CaHPO4 ∙ 2H2O) and sodium salts (Na2CO3 ∙ H2O, Na4P2O7 ∙ 10H,O, and NaPO3). These salts were used as precursors to the following high-temperature phases: Сa2P2O7, Na2O, Na4P2O7, and NaPO3. The amount of the salts in the powder mixtures was such that the oxide composition of the ceramics corresponded to 10 mol % sodium oxide for each mixture in the Na2O–CaO–P2O5 system. The powder mixtures were prepared using mechanical activation in acetone, which was accompanied by monetite rehydration to brushite. X-ray diffraction characterization showed that, after firing, the phase composition of the ceramics produced from the powder mixtures thus prepared lay in the Сa2P2O7–NaCaPO4–Na2СaP2O7–Са(РО3)2 phase field. The resultant ceramic materials contain biocompatible and bioresorbable phases and can be recommended for bone implant fabrication.

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Correspondence to T. V. Safronova.

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Original Russian Text © T.V. Safronova, V.I. Putlyaev, Ya.Yu. Filippov, T.B. Shatalova, D.O. Naberezhnyi, A.F. Nasriddinov, D.S. Larionov, 2018, published in Neorganicheskie Materialy, 2018, Vol. 54, No. 7, pp. 765–776.

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Safronova, T.V., Putlyaev, V.I., Filippov, Y.Y. et al. Ceramics Based on Powder Mixtures Containing Calcium Hydrogen Phosphates and Sodium Salts (Na2CO3, Na4P2O7, and NaPO3). Inorg Mater 54, 724–735 (2018). https://doi.org/10.1134/S0020168518070166

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  • DOI: https://doi.org/10.1134/S0020168518070166

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