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- W2022703609 abstract "Abstract The passive behaviour of hafnium has been investigated by quasi-steady (20 h stabilization) and transient polarization measurements and dc capacitance determinations over potentials from −1 to 2 V ( sce ) in aqueous solutions of pH 0–10 at 25°C. The quasi-steady data show an essentially pH-independent passive current and a superimposed current of oxygen evolution appearing at rather low overvoltages for this reaction. The transients suggest charge transfer by Hf(IV) ions according to the Cabrera-Mott equation. There is almost no superpolarization. The transient polarization fits with a value of 1.5 A for the half-jump distance. The capacitance data satisfy a simple insulator model, revealing the charge distribution in the passive electrode, and combine with the transient polarization data to give about 34/ r for the dielectric constant of the passive film. Comparison is made to the passive behaviour of zirconium." @default.
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- W2022703609 date "1988-03-01" @default.
- W2022703609 modified "2023-09-24" @default.
- W2022703609 title "Passive behaviour of hafnium" @default.
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- W2022703609 doi "https://doi.org/10.1016/0013-4686(88)85025-4" @default.
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