| Ag掺杂对TiO2纳米薄膜结构及摩擦学性能的影响 |
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| 引用本文： | 贾庆远 张玉娟 吴志申 张平余. Ag掺杂对TiO2纳米薄膜结构及摩擦学性能的影响[J]. 润滑与密封, 2006, 0(7): 139-141 |
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| 作者姓名： | 贾庆远 张玉娟 吴志申 张平余 |
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| 作者单位： | 河南大学特种功能材料重点实验室 河南开封475001 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用溶胶凝胶法在普通载玻片上制备了TiO2和Ag/TiO2纳米结构薄膜,利用X射线衍射仪(XRD)、X光电子能谱(XPS)、原子力显微镜(AFM)及UMT-2摩擦试验机,考察了Ag掺杂量对薄膜组成结构、表面形貌及摩擦学性能的影响。实验结果表明,Ag掺杂量对TiO2薄膜表面形貌和减摩抗磨性能产生重要影响,低掺杂时Ag自润滑性能对薄膜摩擦性能的增强作用占主导,而高掺杂时其对薄膜的影响主要表现为恶化表面,从而导致摩擦性能下降。本研究测试条件下,掺杂量为5.0%(摩尔分数)时具有最佳的耐磨寿命和最低的摩擦因数。
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| 关 键 词： | 纳米薄膜 掺杂 摩擦学性能 TiO2 |
| 文章编号： | 0254-0150(2006)7-139-3 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-04-20 |
Influence of Ag Dopants on Structure and Tribological Properties of Nanostructured TiO2 Film |
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| Jia Qingyuan Zhang Yujuan Wu Zhishen Zhang Pingyu. Influence of Ag Dopants on Structure and Tribological Properties of Nanostructured TiO2 Film[J]. Lubrication Engineering, 2006, 0(7): 139-141 |
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| Authors: | Jia Qingyuan Zhang Yujuan Wu Zhishen Zhang Pingyu |
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| Affiliation: | Key Laboratory of Special Functional Materials, Henan University, Kaifeng Henan 475001, China |
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| Abstract: | The undoped TiO_2 and Ag-doped TiO_2 thin films were prepared by sol-gel process on the glass substrates.Their structure,composition,surface morphology and tribological properties were investigated by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),atomic force microscopy(AFM) and UMT-2 friction and wear tester.Results show that low Ag content enhances tribological properties but high Ag content decreases tribological properties due to deteriorating surface morphology.On this investigation,5.0mol%Ag/TiO_2 registers the best wear life and friction coefficient. |
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| Keywords: | TiO2 |
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