Table 3.

Linear surface roughness parameters (Rq, Rz, ISO 4288-1998 [34]) of the Cu-based materials.

Sample	Rq (nm)	Rz (nm)
Cu R	95 ± 10	658 ± 148
Cu R + A	180 ± 54	1097 ± 551
Cu15Zn	93 ± 8	688 ± 80
Cu18Ni20Zn	292 ± 183	1172 ± 479