| 钛合金表面稀土碳纳米管薄膜制备及其摩擦磨损性能分析 |
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| 引用本文： | 方磊,徐颖,程先华. 钛合金表面稀土碳纳米管薄膜制备及其摩擦磨损性能分析[J]. 上海交通大学学报, 2013, 47(5): 740-743 |
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| 作者姓名： | 方磊 徐颖 程先华 |
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| 作者单位： |
（1.上海交通大学 机械与动力工程学院， 上海 200240； 2.上海师范大学 信息与机电工程学院， 上海 201418； 3.清华大学 摩擦学国家重点实验室， 北京 100084） |
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| 摘 要： | 使用稀土对碳纳米管进行表面修饰，采用自组装技术在医用钛合金表面制备稀土改性碳纳米管复合薄膜,采用扫描电子显微镜（SEM）及X射线光电子能谱仪（XPS）对稀土改性碳纳米管复合薄膜的形貌及组成进行表征，并使用UMT-2MT型动-静摩擦系数精密测定仪评价薄膜的摩擦磨损性能.结果表明：在钛合金表面能够制备出硅烷薄膜及稀土改性碳纳米管复合薄膜；稀土元素能显著改善碳纳米管的表面活性，并作为基底与碳纳米管的联接介质；稀土改性碳纳米管复合薄膜的摩擦系数约为0.13，减摩效果显著，且薄膜具有良好的耐磨性能.
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| 关 键 词： | 钛合金； 自组装薄膜； 稀土； 碳纳米管； 摩擦磨损性能 |
| 收稿时间： | 2012-05-30 |
Formation and Friction Properties Investigation of Rare Earth Modified CNTs Film on Surface of Titanium Alloy Substrates |
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| FANG Lei,XU Ying,CHENG Xian-hua. Formation and Friction Properties Investigation of Rare Earth Modified CNTs Film on Surface of Titanium Alloy Substrates[J]. Journal of Shanghai Jiaotong University, 2013, 47(5): 740-743 |
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| Authors: | FANG Lei XU Ying CHENG Xian-hua |
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| Affiliation: | （1.School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2.College of Information, Mechanical and Electronic Engineering, Shanghai Normal University, Shanghai 201418, China; 3.State Key Laboratory of Tribology (SKLT),Tsinghua University, Beijing 100084, China） |
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| Abstract: | The rare earth (RE) modified carbon nano-tubes (CNTs) self-assembled monolayers (CNTs SAM) was made on the surface of biomedical titanium alloy substrates. Scanning electron microscope (SEM) and X-ray photoelectron spectrometry (XPS) were used to characterize the surface appearance and the composition on the surface of titanium alloy substrates respectively. The tribological properties of the films were evaluated on a UMT-2MT reciprocating friction and wear tester. The results indicate that the RE modified CNTs SAM was successfully assembled on the surface of titanium alloy substrates. RE elements can significantly improve the surface properties of CNTs and act as an adhesive between functional groups of CNTs and the substrate. RE modified CNTs-SAM not only has smaller coefficient of friction (0.13) against GCr15 but also has favorable anti-wearing properties. |
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| Keywords: | titanium alloy self-assembled monolayer rare earth carbon nano-tubes tribological behavior |
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