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

Figure 5

Frictional force versus normal load for the different sample surfaces under four constant bias voltages. (a) 0 V; (b) 0.5 V; (c) 1.0 V; (d) 2.0 V.

(a)

(b)

(c)

(d)