Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

High field mechanism

Film Growth Laws and the High Field Mechanism. 283... [Pg.271]

Fig. 7. Diagram of Gibbs free energy AG for the ion transfer through a passive layer with a Free Activation energy AG between two favoured sites for anions (interstitials or vacancies) under the influence of a high electrical field strength and without field (horizontal curve) explaining the high field mechanism for oxide growth. Fig. 7. Diagram of Gibbs free energy AG for the ion transfer through a passive layer with a Free Activation energy AG between two favoured sites for anions (interstitials or vacancies) under the influence of a high electrical field strength and without field (horizontal curve) explaining the high field mechanism for oxide growth.
It can be concluded that the key point lies in the potential distribution between the film bulk and the film-electrolyte interface in the transient regime. Subsequently, an attempt was made to incorporate the role of defects (cation vacancies) in the high-field mechanism [137]. [Pg.130]

The overall problem of the nonsteady-state passive iron has been reexamined with the purpose of reaching a consistent interpretation of the empirical equation firmly esfablished in acidic [135] and neutral [133,134] media and also for nickel in acidic solutions [135] in classical papers. As stated earlier [141], this equation contradicts the high-field mechanism because it predicts a direct logarithmic Q t) relationship consistent with a place exchange mechanism, whereas the high field should generate an inverse logarithmic dependence [4]. [Pg.179]

Ion Transfer Through the Film, High Field Mechanism.249... [Pg.235]

See other pages where High field mechanism is mentioned: [Pg.2724]    [Pg.2728]    [Pg.469]    [Pg.283]    [Pg.310]    [Pg.333]    [Pg.483]    [Pg.115]    [Pg.33]    [Pg.55]    [Pg.2724]    [Pg.2728]    [Pg.239]    [Pg.249]    [Pg.334]    [Pg.452]    [Pg.286]    [Pg.1933]    [Pg.1943]    [Pg.2024]    [Pg.2092]    [Pg.54]    [Pg.150]    [Pg.346]    [Pg.130]    [Pg.511]    [Pg.333]    [Pg.483]    [Pg.245]    [Pg.247]    [Pg.249]    [Pg.253]    [Pg.274]    [Pg.294]   
See also in sourсe #XX -- [ Pg.283 ]

See also in sourсe #XX -- [ Pg.115 ]



SEARCH



High field

© 2024 chempedia.info