TY - JOUR
T1 - Passivation kinetics of zircalloy-4 electrode in mineral acids under potentiodynamic conditions
AU - Gómez, H.
AU - Gardiazábal, J.
AU - Vera, R.
AU - Schrebler, R.
AU - Córdova, R.
N1 - Funding Information:
This work has been partly sponsored by the International Atomic Energy Agency under contract No. 3023/RB. 1981, and Vicerrectoria Acad6mica de la Universidad Cat61ica de Valparaiso, through the Direcci6n General de Investigaciones, Research No. 005-29-80.
PY - 1985/6/25
Y1 - 1985/6/25
N2 - The E/I response of a zircalloy-4 electrode in mineral acids is examined at room temperature under potentiodynamic conditions. On electrodes that have been mechanically polished and cathodically polarized, growth of the oxide phase, ZrO2, follows the formalism of the Cabrera-Mott model of high field assisted formation of thin oxide films. It is possible to propose a reaction model based on the potentiodynamic experimental parameters, in which the rate determining step is attributed to ionic transfer at the metal-oxide interface.
AB - The E/I response of a zircalloy-4 electrode in mineral acids is examined at room temperature under potentiodynamic conditions. On electrodes that have been mechanically polished and cathodically polarized, growth of the oxide phase, ZrO2, follows the formalism of the Cabrera-Mott model of high field assisted formation of thin oxide films. It is possible to propose a reaction model based on the potentiodynamic experimental parameters, in which the rate determining step is attributed to ionic transfer at the metal-oxide interface.
UR - http://www.scopus.com/inward/record.url?scp=0022084167&partnerID=8YFLogxK
U2 - 10.1016/S0022-0728(85)80048-6
DO - 10.1016/S0022-0728(85)80048-6
M3 - Article
AN - SCOPUS:0022084167
SN - 0022-0728
VL - 188
SP - 39
EP - 48
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
IS - 1-2
ER -