Table 1.

Recovery time of the composites under different voltage.

Samples	60 V	80 V	100 V	120 V	140 V	160 V
1.8 wt% Ag/CCF/H-EP	—	—	—	166 s	135 s	102 s
3.6 wt% Ag/CCF/H-EP	—	—	158 s	126 s	98 s	87 s
5.4 wt% Ag/CCF/H-EP	60 s	51 s	38 s	20 s	18 s	17 s
7.2 wt% Ag/CCF/H-EP	56 s	45 s	29 s	12 s	10 s	9 s