Table 3: Cracks radius on diamond coatings after laser (1250 W) and MP treatments.

LoadCrack radius, m
After laser treatment at 1250 WAfter MP treatment

28 kg195 ± 23204 ± 29
45 kg253 ± 31239 ± 28
62 kg290 ± 30308 ± 36
105 kg388 ± 59370 ± 38
154 kg483 ± 41495 ± 46

(dX/dP)−1, m/kg

0.437 ± 0.030.452 ± 0.04