de Campos M, Müller F A, Bressiani A H A, Bressiani J C, Greil P
Department of Materials Science, University of Erlangen-Nuernberg, Erlangen, Germany.
J Mater Sci Mater Med. 2007 May;18(5):669-75. doi: 10.1007/s10856-006-0006-0. Epub 2006 Nov 30.
beta-tricalcium phosphate (beta-TCP) and biphasic calcium phosphate powders (BCP), consisting of hydroxyapatite (HA) and beta-TCP, were synthesized by thermal decomposition of precursor powders obtained from neutralization method. The precursor powders with a Ca/P molar ratio of 1.5 were prepared by adding an orthophosphoric acid (H(3)PO(4)) solution to an aqueous suspension containing calcium hydroxide (Ca(OH)(2)). Mixing was carried out by vigorous stirring and under sonochemical irradiation at 50 kHz, respectively. Glycerol and D-glucose were added to evaluate their influence on the precipitation of the resulting calcium phosphate powders. After calcination at 1000 degrees C for 3 h BCP nanopowders of various HA/beta-TCP ratio were obtained.
通过对中和法制备的前驱体粉末进行热分解，合成了β-磷酸三钙（β-TCP）和由羟基磷灰石（HA）与β-TCP组成的双相磷酸钙粉末（BCP）。通过向含有氢氧化钙（Ca(OH)₂）的水悬浮液中加入正磷酸（H₃PO₄）溶液，制备钙磷摩尔比为1.5的前驱体粉末。分别通过剧烈搅拌和50kHz的超声辐射进行混合。添加甘油和D-葡萄糖以评估它们对所得磷酸钙粉末沉淀的影响。在1000℃煅烧3小时后，获得了各种HA/β-TCP比例的BCP纳米粉末。
