Abstract
•Protective action of dense and porous spinel coatings on Crofer 22 APU was compared.
•Reduction and re-oxidation produces denser coatings than heat treating in air only.
•Coating density has minor influence on oxidation resistance at 800 °C in air.
•Dense coating resulted in three times lower Cr evaporation rate than porous coating.
•Reduction and re-oxidation produces denser coatings than heat treating in air only.
•Coating density has minor influence on oxidation resistance at 800 °C in air.
•Dense coating resulted in three times lower Cr evaporation rate than porous coating.
Original language | English |
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Journal | Journal of Power Sources |
Volume | 354 |
Pages (from-to) | 57-67 |
ISSN | 0378-7753 |
DOIs | |
Publication status | Published - 2017 |
Keywords
- Solid oxide fuel cell
- Metallic interconnect
- Manganese cobalt spinel
- Ceramic coating
- High temperature oxidation
- Chromium evaporation