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Electrochemical impedance spectroscopy parameters of the bare NiTi alloy, GO-coated NiTi (GO), and GO/Ag-coated NiTi (GOAg) substrate.
| Specimen | Rs (Ω) | Rct (kΩ) | Cdl (µF) | Yo (µMho) |
|---|---|---|---|---|
| Bare NiTi | 16.20 | 16.80 | 36.90 | 8.29 |
| GO | 16.50 | −6.12 | 26.60 | 15.60 |
| GOAg | 16.50 | −5.04 | 47.20 | 23.20 |
Rs = Electrolyte solution resistance, Rct = Charge transfer resistance of the corrosion reaction, Cdl = Capacitance, and W = Warburg impedance related to the diffusion of O2 of the NiTi alloy.
