Oxidation and electrical properties of chromium–iron alloys in a corrosive molten electrolyte environment
Journal article, 2020

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.

Author

Mohsen Esmaily

Massachusetts Institute of Technology (MIT)

Anna Mortazavi

Harvard University

Nick Birbilis

Australian National University

Antoine Allanore

Massachusetts Institute of Technology (MIT)

Scientific Reports

2045-2322 (ISSN)

Vol. 10 1-19

Subject Categories

Cell and Molecular Biology

Forest Science

Other Basic Medicine

DOI

10.1038/s41598-020-71903-0

More information

Latest update

2/18/2021