Résumé
Ta, Nb, Ti, and Zr corrosion for six different molten glasses have been experimentally studied at 1400°C. Both corrosion-layer compositions and corrosion rates have been determined. Mechanisms of corrosion-layer formation, mainly based upon both redox reactions between metal and glass and solid-state diffusion, are proposed. The consequences of metallic element additions to the glass on metal corrosion are discussed in comparison with a metal-free reference glass. The corrosion rates of niobium are specifically determined in a Na2O3.5SiO2 glass modified by additions of metallic elements. A correlation is established between the corrosion rate and the formal redox potential of the MII/M0 couple.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 225-232 |
| Nombre de pages | 8 |
| journal | Ceramic Transactions |
| Volume | 141 |
| état | Publié - 27 déc. 2004 |
| Modification externe | Oui |
| Evénement | Advances in Fusion and Processing of Glass III - Rochester, NY, États-Unis Durée: 27 juil. 2003 → 31 juil. 2003 |
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