Fabrication of carbonate apatite block based on internal dissolution-precipitation reaction of dicalcium phosphate and calcium carbonate
Fabrication of carbonate apatite block based on internal dissolution-precipitation reaction of dicalcium phosphate and calcium carbonate
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DOI：
10.4012/dmj.2009-095
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发表时间：
2010-05-01
影响因子：
2.5
通讯作者：
Ishikawa, Kunio
中科院分区：
文献类型：
--
作者：
Daitou, Fumikazu;Maruta, Michito;Ishikawa, Kunio
在这项研究中，我们研究了一种新的方法，用于制造碳酸磷灰石块体没有离子运动之间的前体和溶液中使用的前体，包括所有组成离子的碳酸磷灰石。将由无水磷酸二钙和方解石以适当的Ca/P比（1.5、1.67和1.8）制备的粉末混合物用作起始材料。为了制备样品，将由粉末混合物和蒸馏水制成的浆料包装在分开的不锈钢模具中，并在100%湿度下在60 ° C至100 ° C的范围内热处理长达48小时。可以看出，在高于70 ℃时可以获得碳酸磷灰石，并且在Ca/P比为1.67时，可以从粉末混合物中获得单相碳酸磷灰石。样品的碳酸盐含量约为5- 7%。随着处理温度的升高，碳磷灰石块体的径向抗拉强度略有下降。径向拉伸强度的降低被认为与所形成的碳酸磷灰石的晶体尺寸有关。
In this study, we investigated a novel method for fabrication of carbonate apatite block without ionic movement between precursor and solution by using precursor that includes all constituent ions of carbonate apatite. A powder mixture prepared from dicalcium phosphate anhydrous and calcite at appropriate Ca/P ratios (1.5, 1.67, and 1.8) was used as starting material. For preparation of Specimens, the slurry made from the powder mixture and distilled water was packed in a split stainless steel mold and heat-treated, ranging from 60 degrees C to 100 degrees C up to 48 hours at 100% humidity. It appeared that carbonate apatite could be obtained above 70 degrees C and monophasic carbonate apatite could be obtained from the powder mixture at Ca/P ratio of 1.67. Carbonate content of the specimen was about 5-7%. Diametral tensile strength of the carbonate apatite blocks slightly decreased with increasing treatment temperature. The decrease in diametral tensile strength is thought to be related to the crystal size of the carbonate apatite formed.