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Table 1 Distribution of groups

From: Achieving surface chemical and morphologic alterations on tantalum by plasma electrolytic oxidation

Groups Plasma electrolytic oxidation—time (min) Voltage (V) Current (A)
1  
2 1 ΔU = 160 to 200 V 0.18
3 3 ΔU = 160 to 280 V 0.19
4 5 ΔU = 160 to 300 V 0.18