Electronic Controlling on Nanotribological Properties of a Textured Surface by Laser Processing

Figure 3

Frictional force versus normal load, from 0.1 V to 1.0 V, with five bias voltages (0 V, 0.5 V, 1 V, 1.5 V, and 2 V) for the four Ni-Co alloy coating surfaces. (a) unprocessed; laser processed at (b) 0.03 J/cm²; (c) 0.05 J/cm²; (d) 0.18 J/cm².

(a)

(b)

(c)

(d)