Kinetics of Growth of Amorphous WO 3 Anodic Films on Tungsten
- 1 May 1980
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 127 (5) , 1016-1021
- https://doi.org/10.1149/1.2129809
Abstract
The kinetics of growth of anodic films have been studied in 0.01Nsolutions of , , , and at room temperature. The validity of the relationship was verified in the current density range 0.2–16 mA·cm−2, Nearly constant B values were found in all investigated solutions. A lower value of dielectric constant was measured for the anodic films grown in phosphoric acid solutions. The effect of phosphate ions incorporation on the breakdown voltage is also discussed. The hypothesis of growth in presence of high space charge is carefully considered.Keywords
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