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Determining oxidation states of transition metals in molten salt corrosion using electron energy loss spectroscopy
- Source :
- Scripta Materialia. 197:113790
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- This work utilizes electron energy loss spectroscopy (EELS) to identify oxidation state of alloying elements in Ni-based alloys after exposure to molten chloride salt systems. Pure Ni and Ni-20Cr model alloy were corroded in molten ZnCl2 and KCl-MgCl2 under argon atmosphere at various temperatures. Oxidation states of Cr (Cr3+) and Ni (Ni2+) in the molten salt after corrosion were determined by monitoring changes in the L2,3 edges of corresponding EELS spectra. Oxidation state mapping technique using principal component analysis and multiple linear least squares fitting in HyperSpy Python package was developed.
- Subjects :
- 010302 applied physics
Work (thermodynamics)
Materials science
Mechanical Engineering
Electron energy loss spectroscopy
Alloy
Metals and Alloys
Analytical chemistry
02 engineering and technology
engineering.material
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Spectral line
Corrosion
Transition metal
Mechanics of Materials
Oxidation state
0103 physical sciences
engineering
General Materials Science
Molten salt
0210 nano-technology
Subjects
Details
- ISSN :
- 13596462
- Volume :
- 197
- Database :
- OpenAIRE
- Journal :
- Scripta Materialia
- Accession number :
- edsair.doi...........a8f358d426369c749bf92014223cbb89