Calcium hydroxyapatite (HAP) powder is synthesized from an aqueous solution of potassium hydrogen phosphate and a suspension of calcium hydroxide in an aqueous solution containing calcium and potassium ions, hydroxide ions and acetate ions. The amount of Ca (OH) 2 in the calcium-containing component was 50, 75 and 100%. The synthesized HAP powder was used to obtain ceramics. Ceramics after firing at 700 ° C from HAP powder containing a by-product of the reaction had a density of 2.0 - 2.6 g / cm 3 and a flexural strength of 35 - 45 MPa at a grain size of 200 nm. The phase composition was represented by HAP and double calcium orthophosphate of potassium. Ceramics based on HAP, after firing at 1200 ° C from a powder that does not contain a by-product of the reaction, had a density of 2.2 - 2.3 g / cm 3 and a flexural strength of 45 - 55 MPa at a grain size 500 - 1000 nm. Tab. 2, ill. 11, bibliography: 14 titles.
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