𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Analysis of the impedance response of passive iron

✍ Scribed by E.B. Castro

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
584 KB
Volume
39
Category
Article
ISSN
0013-4686

No coin nor oath required. For personal study only.

✦ Synopsis

The impedance response of passive iron is described in terms of a model that takes into account the electrochemical processes taking place at both the metal/oxide and oxide/electrolyte interfaces and the influence of the ionic transport in the passive film. The comparison of the theoretical transfer function with experimental data corresponding to iron passivated in aqueous boric acid-borate buffers leads to the conclusion that the potential perturbing signal does not interfere with the equilibrium of the layer formation reactions (deposition and removal of oxygen ions), the faradaic impedance being related to the iron dissolution through the passive film.

πŸ“œ SIMILAR VOLUMES

Analysis of the passive film on iron chr
Analysis of the passive film on iron chromium alloys by potential modulated ellipsometry and impedance spectroscopy
✍ L.C. Jacobs; H.P. de Vogel; P.E. Habing; J.A.L. Dobbelaar; K. Hemmes; J.H.W. de πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 443 KB

Ahatraet-Impedance measurements have been combined with ellipsometric measurements. The optical properties change with varying potential due to the formation of a thin layer or to changes in the composition of the passive f&t. This combination of techniques can, therefore, give more insight into the

Passivity of iron
Passivity of iron
✍ C. πŸ“‚ Article πŸ“… 1880 πŸ› Elsevier Science 🌐 English βš– 56 KB