Figure 3

(a, c) AFM measurements show the topography and fine particle boundary of the Si-face and C-face, respectively. (b, d) Lateral force (friction force) measurements on Si-face and C-face. (e) Coefficient of friction (COF) of the oxide layer for each orientation direction of SiC. (f) Young's modulus and hardness measurements of the oxide layer in each orientation direction of SiC.