Superlow Friction Behavior of Surface-Textured a-C:H Film in Water Environments
Superlow Friction Behavior of Surface-Textured a-C:H Film in Water Environments
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DOI：
10.1080/10402004.2015.1023412
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发表时间：
2015-06
影响因子：
2.1
通讯作者：
Hui Song;L. Ji;Hongxuan Li;Xiaohong Liu;Hui-di Zhou;Liu Liu-Liu;Jianmin Chen
中科院分区：
文献类型：
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作者：
Hui Song;L. Ji;Hongxuan Li;Xiaohong Liu;Hui-di Zhou;Liu Liu-Liu;Jianmin Chen
制备了带有凹槽图案的织构a-C:H薄膜并研究了它们在蒸馏水中的摩擦学性能。此外，还讨论了空间周期对织构膜摩擦学性能的影响。通过扫描电子显微镜（SEM）、拉曼光谱和X射线光电子能谱（XPS）观察织构化a-C:H薄膜的形貌和结构以及磨损表面。结果表明，与无纹理薄膜相比，纹理薄膜在水环境中表现出优异的摩擦学性能。空间周期为0.3 mm的凹槽图案表现出最有效的减摩性能，摩擦系数和磨损率分别为0.038和8 × 10−7 mm3/N·m，这归因于纹理膜较低的内应力，以及捕获磨屑、流体动力润滑效应、减少摩擦引起的相变以及摩擦表面较少化学反应的综合作用。
Textured a-C:H films with groove patterning were prepared and their tribological properties in distilled water were investigated. In addition, the effects of spatial periods on the tribological performance of the textured films were also discussed. The morphology and structure of textured a-C:H film as well as the worn surfaces were observed by scanning electron microscopy (SEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The results showed that textured films exhibited excellent tribological performance compared to the untextured film in a water environment. The groove patterning with the spatial period of 0.3 mm showed the most effective friction reduction property, and the friction coefficient and wear rate were 0.038 and 8 × 10−7 mm3/N·m, respectively, which is attributed to lower internal stress of the textured film, as well as combined effects of trapping wear debris, hydrodynamic lubrication effect, reduced friction-induced phase transformation, and less chemical reaction on the rubbed surface.