Anodization of niobium in sulphuric acid media

@article{Gomes1991AnodizationON,
  title={Anodization of niobium in sulphuric acid media},
  author={M. A. Biason Gomes and Sandra A. Onofre and S. Juanto and Luis O.S. Bulh{\~o}es},
  journal={Journal of Applied Electrochemistry},
  year={1991},
  volume={21},
  pages={1023-1026}
}
Niobium oxide films of different thicknesses can be produced on niobium electrodes by anodic polarization. The films produced by a galvanostatic method show different interference colours following the expected theoretical succession of colours. An electrical breakdown was observed which showed a significant dependence of the electrolyte concentration and current density. The relationship between the colour and the current density during the anodization of niobium samples are reported for… 

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