Transport of reactants during scale formation on copper in SO2+O2 atmosphere at 973 and 1073 K
| Autor: | Jolanta Gilewicz-Wolter, Krystyna Kowalska |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
chemistry.chemical_classification
Copper oxide Sulfide Scanning electron microscope Metals and Alloys Sulfidation chemistry.chemical_element Copper Chemical reaction Inorganic Chemistry chemistry.chemical_compound chemistry Chemical engineering Phase (matter) Materials Chemistry Surface layer Nuclear chemistry |
| Zdroj: | Oxidation of Metals. 28:277-290 |
| ISSN: | 1573-4889 0030-770X |
| DOI: | 10.1007/bf00666723 |
| Popis: | The reaction between copper and a mixture of SO2+O2 was studied at 973 and 1073 K. The experimental methods included optical microscopy, X-ray diffraction, scanning electron microscopy (SEM), energy-dispersive X-ray analysis, and radiotracer. It is concluded that the inward transport of oxidants through the scale as well as oxygen and sulfur dioxide liberation in the reactions taking place at phase boundaries suggest that secondary processes occur inside the oxide-sulphate layer. Therefore, Cu2O and CuOCuSO4 appear inside this layer. In the metal-consumption zone, a Cu2O layer forms, which contains small amounts of a sulfide phase near the metal-scale interface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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