Fabrication of Porous Calcium Phosphate by Using a Pre-Form of Nature Material
Fabrication of Porous Calcium Phosphate by Using a Pre-Form of Nature Material
复制标题
利用天然材料预成型体制备多孔磷酸钙
DOI：
10.4191/kcers.2010.47.3.244
复制
发表时间：
2010
影响因子：
2.5
通讯作者：
Hoon
中科院分区：
文献类型：
--
作者：
Sang‐Jin Lee;Hoon
以乌贼骨为原料成功制备了多孔磷酸钙。乌贼骨由CaCO_3组成，具有特殊的多孔显微结构，其中含有尺寸均匀的空隙。在本研究中，预成型体渗透蒸馏磷酸在空气气氛中在1200℃烧结。在合成磷酸钙的条件下烧结后，预制体的多孔结构保持了原有的形貌。在1200℃、磷酸浓度为17%条件下烧结3 h，所得多孔磷酸钙的XRD图谱显示出均匀的150 μ m的开孔，并有β-TCP相存在。在16%浓度以上，由CaCO_3分解生成的CaO相在烧结样品中逐渐减少，在16%和18%浓度下制备的样品的Ca/P比分别为1.67和1.43，接近化学计量的HA（1.66）和β-TCP（1.50）。
Porous calcium phosphates were successfully fabricated by using a cuttlefish bone. The cuttlefish bone, which is composed of CaCO₃, showed a special porous microstructure containing uniform-sized voids. In this study, the pre-forms infiltrated distilled phosphoric acid were sintered at 1200℃ in an air atmosphere. The porous microstructure of the pre-forms was kept their original pattern after sintering with a synthesis of calcium phosphate. The obtained porous calcium phosphate, sintered at 1200℃ for 3 h at 17% concentration of phosphoric acid, showed uniform open pores of 150 ㎛ in size and β-TCP phase in the XRD patterns. Above 16% concentration, CaO phase, derived from the decomposition of CaCO₃, decreased gradually in the sintered samples, and the measured Ca/P ratios of the samples prepared from 16% and 18% concentration were 1.67 and 1.43, which are close to stoichiometric HA (1.66) and β-TCP (1.50).