| 纳米晶状磷酸钙盐/Al2O3-Ti生物复合材料的制备与结构表征 |
| Preparation and Characterization of Nanocrystalline Calcium Phosphate/Al2O3-Ti Biocomposite |
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| 摘要: |
| 关键词: 阳极氧化 水热处理 磷酸钙/Al2O3-Ti 纳米 生物复合材料 硬组织 替换材料 |
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| Abstract: This work aims at developing a new and reliable biomaterial for implant application by fabricating calcium phosphate/Al2O3biocomposite coating on medical titanium using a hybrid technique of anodic oxidation and hydrothermal treatment. The pre- and post-anodized samples were investigated by scanning electron microscopy (SEM), energy dispersive analysis of X-ray (EDAX), transmission electron microscopy (TEM), and X-ray diffraction (XRD) techniques. The results indicated that porous anodic alumina film containing Ca and P was obtained on the as-prepared Al-Ti substrate through anodization, and the subsequent hydrothermal treatment led to the formation of calcium phosphate crystals. SEM and TEM results showed that calcium phosphate crystals were in nanometer, in-situ embedded in the walls of the cylindrical structure of anodic alumina, and finally formed a thin and porous top layer on the anodic alumina layer. The nanometer effect of calcium phosphate top layer, the porous and cylindrical microstructure of calcium phosphate/Al2O3-Ti, and the in-situ growth effect are expect to possess a very good combination of bioactivity and mechanical integrity. |
| Keywords: anodic oxidation hydrothermal treatment calcium phosphate/Al2O3-Ti nanometer biocomposite hard tissue implant |
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| 何莉萍,吴振军,陈宗璋,米耀荣.纳米晶状磷酸钙盐/Al2O3-Ti生物复合材料的制备与结构表征[J].无机化学学报,2004,20(3):273-277. |
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