Fig. 1
From: Sliding Speed-Dependent Tribochemical Wear of Oxide-Free Silicon
AFM images and the corresponding cross-section profiles of wear scar on silicon surface slid against SiO2 tip at sliding speed ranging from 0.08 to 50 μm/s in humid air (RH = 60%) (a) and in water (b). Volume of wear scars on Si surface as a function of sliding speed in air and in DI water (c). Imposed load is 2 μN, sliding amplitude is 200 nm, and the number of sliding cycles is 100