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Table 1 FeCl3 etching time of the contact angle and surface roughness

From: Study on micro fabricated stainless steel surface to anti-biofouling using electrochemical fabrication

FeCl3 etching (min) SEM image Wettability Contact angle (˚) Roughness, Ra (nm)
1 74.2 98
3 49.8 142
5 22.6 178