Improved oxidation resistance of ferritic steels with LSM coating for high temperature electrochemical applications
Publication: Research - peer-review › Conference article – Annual report year: 2012
The effect of single layer La0.85Sr0.15MnO3−δ (LSM) coatings on high temperature oxidation behaviour of four commercial chromia-forming steels, Crofer 22 APU, Crofer 22 H, E-Brite and AL 29-4C, is studied. The samples were oxidized for 140–1000 h at 1123 K in flowing simulated ambient air (air + 1% H2O) and oxygen and corrosion kinetics monitored by mass increase of the materials over time. The oxide scale microstructure and chemical composition are investigated by scanning electron microscopy/energy-dispersive spectroscopy. The kinetic data obey a parabolic rate law. The results show that the LSM coating acts as an oxygen transport barrier that can significantly reduce the corrosion rate.
|Journal||International Journal of Hydrogen Energy|
|Workshop||7th Petite Workshop on the Defect Chemical Nature of Energy Materials|
|Period||14/05/11 → 17/05/11|
|Citations||Web of Science® Times Cited: 5|
- Oxide scale growth, High temperature corrosion, Parabolic rate law, Ionic diffusion
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