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Bioactivity of Ta-Doped TiO2 Films on Nano-Grained Surface of 316L Stainless Steel
Pages: 83-87
Year: Issue:  2
Journal: Vacuum Science and Technology

Keyword:  掺钽TiO2薄膜 纳米结构316L 生物活性 射频磁控溅射;
Abstract: 采用射频磁控溅射技术在表面微结构纳米化316L不锈钢和粗晶粒316L不锈钢基体上制备掺钽TiO2薄膜。采用扫描电镜和X射线衍射仪分析薄膜形貌和晶体结构,用体外模拟人体体液浸泡实验研究薄膜的生物活性。结果表明:表面微结构纳米化的316L不锈钢具有强烈诱导掺钽TiO2薄膜形核效应;316L不锈钢表面微结构纳米化能显著提高自身及其表层掺钽TiO2薄膜的生物活性;316L不锈钢表面纳米化后,其表层掺钽TiO2薄膜诱导的羟基磷灰石形貌由原先的球状变为多孔网状结构。
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