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| Titel:
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Interaction mechanisms between slurry coatings and solid oxide fuel cell interconnect alloys during high temperature oxidation |
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Journal articleJournal article |
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Technical University of Denmark
Email:
Technical University of Denmark
Technical University of Denmark
Email:
Department of Mechanical Engineering, Technical University of Denmark, Kemitorvet b.204, DK-2800 Lyngby, Denmark
Email:
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| Uddrag:
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Six different coatings consisting of fluorite-, corundum-, spinel- or perovskite-type oxides were deposited on a Fe22Cr alloy (Crofer 22APU) and oxidized at 900°C in moisturized air.Five of the coatings prevented break-away oxidation otherwise observed for the uncoated alloy, and the parabolic oxidation rate constant was reduced with 50–90% of that for uncoated alloy. One coating consisting of MnCo2O4 did not significantly affect the oxidation rate of the alloy, and just as for uncoated samples break-away oxidation occurred for MnCo2O4 coated samples. The interaction mechanisms between the growing oxide scales and applied coatings can be classified according to three types. |
| Publiceret:
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in journal: Journal of Alloys and Compounds (ISSN: 0925-8388) (DOI: http://dx.doi.org/10.1016/j.jallcom.2011.12.095), vol: 521, pages: 16-29, 2012 |
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