Size Effect of CeO2 Particle on Nanoscale Single-Asperity Sliding Friction
Size Effect of CeO2 Particle on Nanoscale Single-Asperity Sliding Friction
复制标题
CeO2颗粒对纳米级单凹凸滑动摩擦的尺寸效应
DOI:
10.1007/s11249-021-01544-5
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发表时间:
2021-08
影响因子:
3.2
通讯作者:
Zhiwei Shan
中科院分区:
文献类型:
--
作者:
Ning Xu;Jiahui Ma;Qi Liu;Weizhong Han;Zhiwei Shan
The size of abrasive particle has a great impact on the fundamental friction behavior and mechanical properties of the abrasive during ultra-precision polishing performance. Here, the size effect of the tribological behavior and mechanical properties of CeO2 single abrasive were studied. Experimental results show that the size effect plays a role on coefficient of friction (COF) of each regime in single-asperity sliding friction, especially in ploughing and cutting regimes. The residual depth of the scratch and COF both decrease with the increase of the CeO2 tip radius. These results relate to the mechanical properties of CeO2 nanoparticles. We found that the effective modulus increases with the decrease of abrasive size, which corresponds to the size effect of the single-asperity sliding friction experiment.
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