Towards a better understanding of the structures existing on the surface of brake pads

In the present investigation, optical microscopy, confocal laser scanning microscopy (CLSM), microindentation and image segmentation were employed to investigate the different structures existing on the worn surface of a non asbestos organic (NAO) and a low metallic (LM) brake pad. The following structures were identified on the surfaces of the studied pads: (i) deformable and non-deformable primary plateaus, (ii) secondary contact plateaus...