Page 174 - Handbook of Surface Improvement and Modification

11.1 Methods and mechanisms of improvement of the coefficient of friction 169

Figure 11.4. SEM images of the worn surfaces for POM without patterning (A and B), PP without patterning (C
and D) and worn micro-pillars (formed after patterning) with close-ups for POM (E–G) and for PP (H–J).
[Adapted, by permission, from Korpela, T; Suvanto, M; Pakkanen, TT; Wear, 328-329, 262-9, 2015.]
The background of testing methods and behavior is extensively discussed in the
book chapter which includes analysis of effects of surfaces (description, different scales of
roughness, and contact mechanics of two solid surfaces), friction between two solid sur-