Synthesis of calcium phosphate powder from calcium lactate and ammonium hydrogen phosphate for the fabrication of bioceramics
作者:T. V. Safronova、V. I. Putlyaev、M. D. Andreev、Ya. Yu. Filippov、A. V. Knotko、T. B. Shatalova、P. V. Evdokimov
DOI:10.1134/s0020168517080143
日期:2017.8
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
磷酸钙粉末是由0.25、0.5和1.0 M的乳酸钙水溶液和磷酸氢铵溶液以Ca / P = 1合成的,无需调节pH。根据X射线衍射数据,合成后的粉末由透钙磷石(CaHPO 4 ·2H 2 O)和磷酸八钙(Ca 8(HPO 4)2(PO 4)4 ·5H 2 O)组成。在500–700°C的温度范围内进行热处理后,由于破坏了反应副产物,粉末呈灰色。在500-700℃下由主要的范围的粉末进行热处理γ-的Ca 2 P 2 ö 7。通过在1100从焙烧合成粉末制备的陶瓷℃下由β-的Ca 2 P 2 ö 7和β-的Ca 3(PO 4)2。