Crystal chemistry of hydroxyapatite deposited on titanium by sputtering technique

被引：0
|
作者：
Ozeki, K [1 ]
Yuhta, T
Aoki, H
Nishimura, I
Fukui, Y
机构：
[1] Tokyo Denki Univ, Dept Elect & Comp Engn, Hiki, Saitama 3500394, Japan
[2] Tokyo Bioceram Inst Co Ltd, Chuo Ku, Tokyo 1030022, Japan
[3] Hokkaido Univ, Dept Biomed Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
来源：
BIO-MEDICAL MATERIALS AND ENGINEERING | 2000年 / 10卷 / 3-4期
关键词：
hydroxyapatite; sputtering; crystal size; particle size; calcium oxide;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
Crystalline hydroxyapatite (HA) powder was coated on titanium substrate by radio frequency (RF) magnetron sputtering. The coating was homogeneous thin Aim and the thickness was 1 mum. Crystallinity of the HA coating was low and Ca/P ratio was high as 3.0. Particle sizes were 40 similar to 100 nm, and the crystallite size was calculated by 30 similar to 50 nm using an X-ray diffractometry (XRD) and a transmission electron microscopy (TEM). When the coating was heated at 800 degreesC for 1 h, the low crystalline HA grew up crystalline HA, and a diffraction pattern of CaO appeared. When the coating was immersed in pH 7.4 of bovine serum for 1 week, c-axis of HA increased.
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页码：221 / 227
页数：7
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