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The Influence of Sliding Speed on the Friction Behavior of Silica Surface
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-22 , DOI: 10.1021/acsomega.0c05897
Shang Gao 1 , Li Hong Yang 1 , Yi Gan 1 , Qiang Chen 1
Affiliation  

Studies have shown that the relative sliding speed of the silicon-based material surface has an effect on its friction behavior. In this study, the molecular dynamics method was used to simulate the sliding of the SiO2 surface at different speeds. This is to explore the internal mechanism between SiO2 surface friction behavior and the relative sliding speed. First of all, this study constructed a 3D model of the SiO2 friction surface and simulated the sliding process under two different environments of absolute dryness and full wetness. Then, the sliding of the SiO2 surface at different speeds in dry and wet environments is simulated and verified the rationality of the simulation through experiments. The final results show that the lattice distortion and tribochemical reactions that occur on the SiO2 surface of the material have varying degrees of influence on the friction behavior of the material surface. In the dry environment, the coefficient of friction of the SiO2 surface increases with the speed. On the contrary, in the humid environment, the SiO2 surface decreases as the speed increases. The analysis results found that the speed has varying degrees of influence on the lattice distortion and tribochemical reaction of the SiO2 surface. Eventually, this study quantifies the effect of speed on SiO2 surface tribochemical reactions and lattice distortion in two different environments.

中文翻译:

滑动速度对二氧化硅表面摩擦行为的影响

研究表明,硅基材料表面的相对滑动速度对其摩擦性能有影响。在这项研究中,分子动力学方法被用来模拟SiO 2表面在不同速度下的滑动。这是探索SiO 2表面摩擦行为与相对滑动速度之间的内在机理。首先,本研究构建了SiO 2摩擦表面的3D模型,并模拟了在绝对干燥和完全潮湿的两种不同环境下的滑动过程。然后,SiO 2的滑动在干燥和潮湿的环境中以不同的速度模拟了表面,并通过实验验证了模拟的合理性。最终结果表明,发生在材料SiO 2表面的晶格畸变和摩擦化学反应对材料表面的摩擦行为有不同程度的影响。在干燥环境中,SiO 2表面的摩擦系数随速度增加。相反,在潮湿的环境中,SiO 2表面随着速度的增加而减小。分析结果表明,速度对SiO 2的晶格畸变和摩擦化学反应有不同程度的影响。表面。最终,这项研究量化了速度在两种不同环境中对SiO 2表面摩擦化学反应和晶格畸变的影响。
更新日期:2021-02-02
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