| 引用本文: | 孙彦敏，王庆良，张 磊，沈 涵.超高分子量聚乙烯表面沉积类金刚石膜的摩擦磨损性能[J].中国表面工程,2010,(6):45~50 |
| SUN Yan–min, WANG Qing–liang, ZHANG Lei, SHEN Han.Tribological Properties of DLC Coating on Surface of Ultra?high Molecular Weight Polyethylene[J].China Surface Engineering,2010,(6):45~50 |
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| 摘要: |
| 利用射频等离子体增强化学气相沉积（RF?PECVD）技术在超高分子量聚乙烯（UHMWPE）表面制备类金刚石（DLC）膜，用激光拉曼（Raman）光谱仪和扫描电子显微镜（SEM）分析了DLC膜的形貌及结构特征，纳米硬度法测定DLC膜的纳米硬度。并在UMT?Ⅱ型摩擦磨损试验机上评价了DLC膜在牛血清溶液润滑条件下的摩擦磨损性能。结果表明，UHMWPE表面制备的DLC膜具有典型类金刚石薄膜的Raman光谱特征，属含氢a?C : H膜。表面沉积DLC膜可有效提高UHMWPE的表面硬度，改善表面润湿性能。25 %牛血清润滑条件下，DLC膜UHMWPE的摩擦因素有所升高，但磨损率则有明显下降。UHMWPE磨损表面存在严重的犁削磨损和塑性变形，DLC膜磨损表面主要以剥层磨损为主。 |
| 关键词: UHMWPE 类金刚石薄膜 等离子体增强化学气相沉积 摩擦磨损 |
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| 基金项目:清华大学摩擦学国家重点实验室开放基金资助项目（SKLTKF08A01） |
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| Tribological Properties of DLC Coating on Surface of Ultra?high Molecular Weight Polyethylene |
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SUN Yan–min, WANG Qing–liang, ZHANG Lei, SHEN Han
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School of Material Science and Engineering, China University of Mining & Technology
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| Abstract: |
| Diamond?like carbon（DLC）film was deposited on surface of ultra?high molecular weight polyethylene（UHMWPE）by radio?frequency plasma enhanced chemical vapor deposition（RF?PECVD）.The surface morphology and micro?structure of the DLC film were characterized with Raman spectrometer and SEM. Naon?hardness was measured by nano?indenter tests. The friction and wear properties of DLC film were investigated on an UMT?Ⅱ friction and wear tester under bovine serum lubrication. The experimental results showed that DLC film deposited on UHMWPE revealed the typical spectral characteristics of diamond?like carbon films, which was an a?C:H film containing H element. DLC film can effectively improve the surface hardness and wetting properties of UHMWPE. Under the lubrication of 25 % bovine serum solution, the coefficient of friction of DLC/UHMWPE had been increased slightly. But, the wear rate reduced significantly compared with untreated UHMWPE. Serious plowing wear and plastic deformation were found on worn surface of UHMWPE. The peeling?off wear was the main mechanism for DLC/UHMWPE. |
| Key words: UHMWPE diamond?like carbon RF?PECVD friction and wear |
