Studies on the mechanism of high temperature corrosion of cobalt in SO2 atmospheres with the use of18O and35S isotopes
| Autor: | Krystyna Kowalska, Jolanta Gilewicz-Wolter |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Sulfide High-temperature corrosion Inorganic chemistry Metals and Alloys Sulfidation Oxide chemistry.chemical_element Sulfur Dissociation (chemistry) Inorganic Chemistry chemistry.chemical_compound chemistry Materials Chemistry Transport phenomena Cobalt |
| Zdroj: | Oxidation of Metals. 22:101-115 |
| ISSN: | 1573-4889 0030-770X |
| DOI: | 10.1007/bf00656899 |
| Popis: | The composition and morphology of scales formed on cobalt in sulfur dioxide atmospheres (1.013 × 105 Pa) at 850 and 900°C and transport phenomena occurring in the growing scales have been investigated. The transport phenomena have been studied by the marker method and with the use of SO2 labeled with the oxygen isotope18O and sulfur isotope35S. The scales were composed of sulfide and oxide mixtures and grew due to the outward diffusion of cobalt and inward transport of SO2 molecules through the discontinuities in the scale. These molecules, as well as the oxidant originating from the dissociation of the outer scale layer, take part in the formation of the inner scale layer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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