561250.fig.0018a
(a) Topographic image of friction
561250.fig.0018b
(b) Cross-section profile of friction distribution
Figure 18: (a) Profile and cross-sectional images of friction distribution and (b) model of friction versus wear track for 4-nm-period (BN/C)n film at 1000 nN load and vibration amplitude of 20 nm.