Table 1 Mechanical responses of the substrate under friction with different probe radiuses
From: Atomistic insight into the minimum wear depth of Cu(111) surface
Probe radius | 6 nm | 8 nm | 10 nm | 12 nm |
---|---|---|---|---|
Critical penetration force (nN) | 387.1 | 565.9 | 814.4 | 1,081.1 |
Critical penetration depth (nm) | 0.65 | 0.72 | 0.80 | 0.87 |
Critical contact pressure (GPa) | 28.3 | 25.1 | 25.2 | 25.2 |
Average friction coefficient | 0.126 | 0.118 | 0.103 | 0.098 |