Abstract
The paper presents results on wear after testing a class of composites (PA +1% black carbon and different 5 concentrations of micro glass spheres) and discussions about damaging processes within the superficial layer, grouped in two categories: one favouring the material remove and the other the reduction of wear intensity. The analysis points out that tribological behaviour should be interpreted only by putting together information about wear, friction, temperature in contact, pair of materials in contact in order to obtain sustainable results that could be useful in engineering design. Keywords:micro-nano particles, polyamide, wear, IR thermogravimetric, SEM