Morphology and microstructure of electrochemically deposited calcium phosphates in a modified simulated body fluid
Morphology and microstructure of electrochemically deposited calcium phosphates in a modified simulated body fluid
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DOI：
10.1016/s0142-9612(98)00032-5
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发表时间：
1998-07-01
期刊：
影响因子：
14
通讯作者：
Maruno, S
中科院分区：
文献类型：
--
作者：
Ban, S;Maruno, S
在温度为52-92℃的改良模拟体液中，分别在1.3和12.9 mA/cm(2)下，在纯钛板上沉积了不同加载时间的磷酸钙。经鉴定，在1.3 mA/cm2下形成的片状晶体为磷酸八钙(OCP)和/或含碳酸盐的磷灰石。随着加载电流的增加，OCP转变为含碳酸盐的磷灰石。经鉴定，在12.9 mA/cm2下形成的针状沉淀为平行于c轴方向拉长的含碳酸盐磷灰石晶体。随着电解液温度的升高，在1.3 mA/cm2下形成的沉积层的结晶度在72℃左右达到最大值，而在12.9 mA/cm2下形成的沉积层的结晶度随着电解液温度的升高而增加。碳酸盐含量随电解液温度和电流的增大而降低。随着碳酸盐含量的增加，电化学沉积的磷酸钙的结晶度降低。(C)1998由爱思唯尔科学有限公司出版。版权所有。
Calcium phosphates were deposited on a pure titanium plate for various loading times under 1.3 and 12.9 mA/cm(2) in a modified simulated body fluid at 52-92 degrees C. The plate-like crystals formed under 1.3 mA/cm2 were identified to be octacalcium phosphate (OCP) and/or carbonate-containing apatite. OCP converted to carbonate-containing apatite with the elapsing time of the loading current. The needle-like precipitates formed under 12.9 mA/cm2 were identified to be carbonate-containing apatite crystals elongated parallel to the c-axis direction. The degrees of crystallinity of the deposits formed under 1.3 mA/cm2 showed the highest value around 72 degrees C, whereas those under 12.9 mA/cm2 increased with the electrolyte temperature. The carbonate content of the deposits decreased with the electrolyte temperature and the flow current. The degree of crystallinity of the electrochemically deposited calcium phosphates decreased with the carbonate content. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.