passivation potential

passivation potential

[‚pas·ə′vā·shən pə‚ten·chəl]
(physical chemistry)
The potential corresponding to the critical anodic current density of an electrode which behaves in an active-passive manner.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
The properties of the steel passivation film, that is, the thickness, composition, and stability, are influenced by the polarization potential, the polarization time, and the ion concentration in the medium, and the microstructure characteristics of passivation films are related to passivation potential and passivation time.
Subsequent to this process (BC), the passivation potential starts to slightly decrease before reaching steady state (CD region).
Moreover, on the basis of the shape of polarization curves, the values of critical passivation current density [i.sub.cp], critical passivation potential [E.sub.cp] and transpassivation [E.sub.T] were graphically established.
The values of critical passivation potential [E.sub.cp] marking the beginning of the passive zone on polarization curves showed a slightly larger variation.