The galvanostatic anodization of commercially pure titanium is studied with current densities lower than 500 Am -' in I M sulphuric acid between 25 and 75Β°C . Two types of electrochemical behaviour are observed: the first type is characterized by a maximum value of the cell voltage and the second on
Composition and structure of the anodic films on titanium in aqueous solutions
β Scribed by M. Pankuch; R. Bell; C.A. Melendres
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 316 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0013-4686
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β¦ Synopsis
Ahatrati-Surface-enhanced Raman spectra of the amorphous film on titanium have been obtained for the first time. The anodic corrosion film at low potentials is identified to be highly disordered TiO, with some Ti,O, also present. The presence of the anatase and rutile modifications of TiO, at high voltages (3 80 V) is confirmed.
π SIMILAR VOLUMES
The anodic films formed on tantalum in many non-aqueous solutions have been found to consist of two layers. Next to the metal there is a layer of Ta206 with the same characteristics as that of films formed in aqueous electrolytes, while between the TaeOb film and the solution there is a layer which