Electrical properties of thermal oxide scales on pure iron in liquid lead-bismuth eutectic
| Autor: | Ryan Schoell, Peter Hosemann, M. P. Popovic, Junsoo Han, Djamel Kaoumi, Elmira Ghanbari, Digby D. Macdonald, John R. Scully, Jie Qiu |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Lead-bismuth eutectic 020209 energy General Chemical Engineering Oxide 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Corrosion Dielectric spectroscopy chemistry.chemical_compound Chemical engineering chemistry Thermal oxide Oxidizing agent 0202 electrical engineering electronic engineering information engineering General Materials Science 0210 nano-technology Electrical impedance Eutectic system |
| Zdroj: | Corrosion Science. 176:109052 |
| ISSN: | 0010-938X |
| Popis: | The impedance behavior of pre-oxidized iron in liquid lead-bismuth eutectic (LBE) at 200 °C is studied using electrochemical impedance spectroscopy. The structures and resistance of oxide grown on iron oxidized in air at different temperatures and durations are compared. The results show that the resistance of the oxide film increases with increasing oxidizing temperature, due to the formation of a thicker scale and fewer defects. At the same temperature (600 °C), increasing the oxidation time can also reduce the defect concentration in the oxide film and improve the impedance of the oxide scale in LBE. |
| Databáze: | OpenAIRE |
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