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Phase composition of ceramic based on calcium hydroxyapatite powders containing byproducts of the synthesis reaction

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The formation of the microstructure of ceramic based on the calcium hydroxyapatite (HAP) powders containing different byproducts of the synthesis reaction is examined: NaCl, KCl, KCH3COO (K2CO3), NaCH3COO (Na2CO3), NH4NO3, NH4Cl, and NH4CH3COO, which can be conventionally divided into two groups—substances that can be removed during heat-treatment before sintering starts and substances that cannot be removed, forming melts and promoting the formation of new phases. During heat-treatment sodium salts interact with HAP, forming binary sodium-calcium phosphates NaCaPO4 and Ca10Na(PO4)7, and alkali-metal (Na, K) acetates, forming binary carbonates.

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References

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Translated from Steklo i Keramika, No. 4, pp. 21–24, April, 2009.

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Safronova, T.V. Phase composition of ceramic based on calcium hydroxyapatite powders containing byproducts of the synthesis reaction. Glass Ceram 66, 136–139 (2009). https://doi.org/10.1007/s10717-009-9130-x

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  • DOI: https://doi.org/10.1007/s10717-009-9130-x

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