Dependence of Pin Surface Roughness for Friction Forces of Ultrathin Perfluoropolyether Lubricant Film on Magnetic Disks by Pin-on-Disk Test

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="923818.fig.007a" src="https://static.hindawi.com/articles/at/volume-2012/923818/figures/923818.fig.007a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Rougher probes </td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="923818.fig.007b" src="https://static.hindawi.com/articles/at/volume-2012/923818/figures/923818.fig.007b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Smoother probes</td></tr></table></td></tr></table>

<table>Transition model from multiple- to single-asperity contact that occurs with decreasing surface roughness for a bonded molecule dominant film.</table>

Advances in Tribology

fig7

Figure 7

Figure 7: Dependence of Pin Surface Roughness for Friction Forces of Ultrathin Perfluoropolyether Lubricant Film on Magnetic Disks by Pin-on-Disk Test 

Figure 7 | Dependence of Pin Surface Roughness for Friction Forces of Ultrathin Perfluoropolyether Lubricant Film on Magnetic Disks by Pin-on-Disk Test 