Effect of temperature on morphology of electrochemically-deposited calcium phosphates.
Effect of temperature on morphology of electrochemically-deposited calcium phosphates.
复制标题
温度对电化学沉积磷酸钙形态的影响。
DOI：
10.4012/dmj.15.31
复制
发表时间：
1996
影响因子：
2.5
通讯作者：
J. Hasegawa
中科院分区：
文献类型：
--
作者：
S. Ban;S. Maruno;A. Harada;M. Hattori;K. Narita;J. Hasegawa
在NaCl、K2 HPO 4和CaCl 2 × 2 H20的溶液中，在4 ℃至92 ℃的温度下，将磷酸钙电化学沉积在钛板上。扫描电子显微镜研究表明，在4摄氏度，22摄氏度和37摄氏度的电解质温度下，在电极上形成颗粒状沉积物;在52摄氏度-92摄氏度下形成针状沉积物。随着电解液温度的升高，针状物的长度和宽度都增加。基于电子衍射表征的结果。红外光谱和X射线衍射分析表明，颗粒状沉积物为低结晶度的含碳酸盐磷酸钙，针状沉积物为沿着c轴伸长的含碳酸盐磷灰石晶体。沉积物的结晶度随着电解质的温度而增加，而磷灰石的取向指数随着温度的增加而增加，直到82 ℃，在92 ℃时略有下降。
Calcium phosphates were electrochemically deposited on titanium plates at temperatures from 4 degrees C to 92 degrees C in a solution of NaCl, K2HPO4 and CaCl2 x 2H20. Scanning electron microscopic studies showed that granular deposits formed on the electrode at electrolyte temperatures of 4 degrees C, 22 degrees C, and 37 degrees C; needle-like deposits formed at 52 degrees C-92 degrees C. The width and length of the needles increased with the temperature of the electrolyte. Based on the results of characterization by electron diffractometry. Fourier transform infrared spectroscopy and X-ray diffractometry, the granular deposits were identified as carbonate-containing calcium phosphate with low crystallinity, and the needle-like deposits as carbonate-containing apatite crystals elongated along the c-axis. Crystallinity of the deposits increased with the temperature of the electrolyte, whereas the orientation indices of the apatite increased with temperature up to 82 degrees C and slightly decreased at 92 degrees C.