School of Mechanical and Mining Engineering, The University of Queensland, QLD4072, Australia.
Sci Rep. 2017 Mar 21;7:44907. doi: 10.1038/srep44907.
The friction between AlO nanowires and silicon substrates of different surface textures was characterised by use of optical manipulation. It was found that surface textures had significant effect on both the friction and the effective contact area between a nanowire and a substrate. A genetic algorithm was developed to determine the effective contact area between the nanowire and the textured substrate. The frictional force was found to be nearly proportional to the effective contact area, regardless of width, depth, spacing and orientation of the surface textures. Interlocking caused by textured grooves was not observed in this study.
利用光学操控技术对不同表面织构的 AlO 纳米线与硅基底之间的摩擦力进行了研究。结果表明，表面织构对纳米线与基底之间的摩擦力和有效接触面积均有显著影响。开发了一种遗传算法来确定纳米线与织构化基底之间的有效接触面积。研究发现，摩擦力几乎与有效接触面积成正比，而与表面织构的宽度、深度、间距和取向无关。在本研究中未观察到由织构化凹槽引起的互锁现象。
