Fig. 8
From: Optimizing gas pressure for enhanced tribological properties of DLC-coated graphite
SEM images of wear on the uncoated sample under loads (a) 1 N and (b) 5 N, and the coated samples under pressure at 25 mTorr with loads (c) 1 N and (d) 5 N, at 30 mTorr with loads (e) 1 N and (f) 5 N, and at 35 mTorr with loads (g) 1 N and (h) 5 N.
