The properties of Ca-deficient hydroxyapatite powder synthesized from calcium nitrate and ammonium hydrogen phosphate at 60 ° C, pH = 7 and Ca / P = 1.67 are presented; 1.61 and 1.48. After firing at 1100 ° C for 6 h, the phase composition of the ceramics based on these powders was represented by tricalcium phosphate (with Ca / P = 1.48) or tricalcium phosphate and hydroxyapatite (with Ca / P = 1.67 and 1.61). The grain size of the ceramics was 100 - 1000 nm. Tab. 2, ill. 3, bibliography: 18 titles.
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