Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment
Chromium–iron (CrFe) binary alloys have recently been proposed to serve as the “inert” anode for molten oxide electrolysis (MOE). Herein, the effects of anodic polarization on physical and functional properties of CrFe anodes in the corrosive environment of MOE are studied via empirical observations...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2021
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| Online Access: | https://hdl.handle.net/1721.1/131077 |
| _version_ | 1826192580156588032 |
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| author | Esmaily, M. Mortazavi, A. N. Birbilis, N. Allanore, A. Allanore, Antoine |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Esmaily, M. Mortazavi, A. N. Birbilis, N. Allanore, A. Allanore, Antoine |
| author_sort | Esmaily, M. |
| collection | MIT |
| description | Chromium–iron (CrFe) binary alloys have recently been proposed to serve as the “inert” anode for molten oxide electrolysis (MOE). Herein, the effects of anodic polarization on physical and functional properties of CrFe anodes in the corrosive environment of MOE are studied via empirical observations and theoretical calculations. The findings indicate that the alloys form an inner chromia–alumina solid-solution covered by an MgCr2O4 spinel layer. A survey into the electrical properties of the detected oxides suggests that the layered oxide scale function as an efficient conductor of electricity at elevated temperature. The formation mechanism of the oxides is also investigated. |
| first_indexed | 2024-09-23T09:22:44Z |
| format | Article |
| id | mit-1721.1/131077 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:22:44Z |
| publishDate | 2021 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1310772022-09-26T11:19:43Z Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment Esmaily, M. Mortazavi, A. N. Birbilis, N. Allanore, A. Allanore, Antoine Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Materials Science and Engineering Chromium–iron (CrFe) binary alloys have recently been proposed to serve as the “inert” anode for molten oxide electrolysis (MOE). Herein, the effects of anodic polarization on physical and functional properties of CrFe anodes in the corrosive environment of MOE are studied via empirical observations and theoretical calculations. The findings indicate that the alloys form an inner chromia–alumina solid-solution covered by an MgCr2O4 spinel layer. A survey into the electrical properties of the detected oxides suggests that the layered oxide scale function as an efficient conductor of electricity at elevated temperature. The formation mechanism of the oxides is also investigated. 2021-07-13T19:55:10Z 2021-07-13T19:55:10Z 2020-09 2020-04 2021-07-12T17:05:52Z Article http://purl.org/eprint/type/JournalArticle 2045-2322 https://hdl.handle.net/1721.1/131077 Esmaily, M. et al. "Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment." Scientific Reports 10, 1 (September 2020): 14833. © 2020 The Author(s) en http://dx.doi.org/10.1038/s41598-020-71903-0 Scientific Reports Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Scientific Reports |
| spellingShingle | Esmaily, M. Mortazavi, A. N. Birbilis, N. Allanore, A. Allanore, Antoine Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment |
| title | Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment |
| title_full | Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment |
| title_fullStr | Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment |
| title_full_unstemmed | Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment |
| title_short | Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment |
| title_sort | oxidation and electrical properties of chromium iron alloys in a corrosive molten electrolyte environment |
| url | https://hdl.handle.net/1721.1/131077 |
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