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Effect of an electric field on the oxidation of aluminium at room temperature

1980; Springer Science+Business Media; Volume: 2; Issue: 4 Linguagem: Inglês

10.1007/bf02802063

0973-7669

Koona Bhavani, V. K. Vaidyan,

Intermetallics and Advanced Alloy Properties

Effect of an applied electric field on the oxidation rate of vacuum deposited aluminium thin films were studied at room temperature in the laboratory atmosphere. Above the critical field, a negative potential applied to the film enhanced the rate of oxidation, while a positive field retarded the rate. This suggests an oxidation mechanism involving cationic diffusion. The observed change in the rate of oxidation for an applied field agrees with the Mott-Cabrera theory.