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Glass composition dependence of metal corrosion by molten glasses

  • Renaud Podor
  • , Nicolas David
  • , Christophe Rapin
  • , Patrice Berthod
  • , Pierre Steinmetz

Résultats de recherche: Contribution à un journalArticle de conférenceRevue par des pairs

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 originaleAnglais
Pages (de - à)225-232
Nombre de pages8
journalCeramic Transactions
Volume141
étatPublié - 27 déc. 2004
Modification externeOui
EvénementAdvances in Fusion and Processing of Glass III - Rochester, NY, États-Unis
Durée: 27 juil. 200331 juil. 2003

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