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The properties of the surface oxide film on pure iron after electrochemical passivation and thermal annealing treatments were investigated using a variety of techniques. Passivation was carried out with an applied potential of 800mV (vs Ag/AgCl) for 15min in a pH 8.4 borate buffer solution at 30°C, whilst annealing was carried out in air in an electric furnace at temperatures up to 300°C. Analysis...
The as-deposited titanium film on silicon wafer was electrochemically treated in potential sweep and potential step modes in 0.1M H 2 SO 4 solution at 30°C. Under the anodization conditions of potential sweep and properly modulated cyclic voltammetry (CV), nanoscale grains, step-terrace structure and atomic images were clearly observed on the surface of anodic oxide film on titanium...
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