Fig. 5From: Sliding Speed-Dependent Tribochemical Wear of Oxide-Free SiliconRaman spectra of original Si surface and wear debris at the end of scale formed against SiO2 sphere in humid air. a Bond detection curves. b Relative intensities of O-Si-O/Si and Si-OH/Si estimated from (a). Normal load in the wear tests was 1 N, and the number of sliding cycles was 2000Back to article page