| 等离子体电解氧化制备生物活性多孔纳米TiO2涂层 |
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| 引用本文： | 胡红杰,刘宣勇,丁传贤. 等离子体电解氧化制备生物活性多孔纳米TiO2涂层[J]. 无机材料学报, 2011, 0(6): 585-590 |
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| 作者姓名： | 胡红杰 刘宣勇 丁传贤 |
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| 作者单位： | 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室; |
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| 基金项目： | 上海市纳米专项基金(0952nm04400); 上海市国际科技合作基金(09520715200); 国家自然科学基金(51071168)~~ |
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| 摘 要： | 采用等离子体电解氧化(PEO)技术,在纯钛基体上制备了具有多孔和纳米结构并含有不同钙磷含量的氧化钛涂层.采用扫描电子显微镜和X射线衍射仪研究了涂层的显微结构和相组成.采用模拟体液浸泡实验评价涂层的生物活性.研究结果表明:涂层主要由锐钛矿和金红石相组成,涂层表面孔径小于10μm,晶粒直径约10～100nm,且涂层表面晶粒、涂层厚度、表面粗糙度和涂层中的钙磷元素含量均随着PEO过程中电流密度的增大而增加.PEO涂层在模拟体液中浸泡14 d即能够诱导类骨磷灰石在其表面沉积,显示出良好的生物活性.涂层中的钙磷含量和结晶形态对其生物活性起关键作用.
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| 关 键 词： | 氧化钛 多孔 纳米 生物活性 等离子体电解氧化 |
Bioactive Porous and Nanostructured TiO_2 Coating Prepared by Plasma Electrolytic Oxidation |
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| HU Hong-Jie,LIU Xuan-Yong,DING Chuan-Xian. Bioactive Porous and Nanostructured TiO_2 Coating Prepared by Plasma Electrolytic Oxidation[J]. Journal of Inorganic Materials, 2011, 0(6): 585-590 |
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| Authors: | HU Hong-Jie LIU Xuan-Yong DING Chuan-Xian |
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| Affiliation: | HU Hong-Jie,LIU Xuan-Yong,DING Chuan-Xian(State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China) |
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| Abstract: | Porous and nanostructured TiOB2 Bcoatings with different Ca,P contents were prepared on titanium by plasma electrolytic oxidation(PEO) in a Ca and P containing electrolyte at different current densities.The surface morphologies and microstructure of the coatings were observed by scanning electron microscope(SEM).Phase com-positions of the coatings were characterized using X-ray diffraction(XRD).Simulated body fluid(SBF) immersion tests were conducted to evaluate the apatite forming ability and bioactivity o... |
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| Keywords: | TiO2 porous nanostructured bioactive plasma electrolytic oxidation |
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