Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment
Name
s41598-020-78030-w.pdf
Description
Published version
Size
5.53 MB
Format
Adobe PDF
Checksum (MD5)
3556bc02a3294d0d9326cf046037104c
Author(s) • • • •
Esmaily, M.
Mortazavi, A. N.
Birbilis, N.
Allanore, A.
Allanore, Antoine
Date Issued
September 2020
Journal
Scientific Reports
Publisher
Springer Science and Business Media LLC
Citation
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)
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1038/s41598-020-71903-0