Effect of coating density on oxidation resistance and Cr vaporization from solid oxide fuel cell interconnects

Belma Talic, Hannes Falk-Windisch, Vinothini Venkatachalam, Peter Vang Hendriksen, Kjell Wiik, Hilde Lea Lein

Research output: Contribution to journalJournal articleResearchpeer-review

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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.
Original languageEnglish
JournalJournal of Power Sources
Volume354
Pages (from-to)57-67
ISSN0378-7753
DOIs
Publication statusPublished - 2017

Keywords

  • Solid oxide fuel cell
  • Metallic interconnect
  • Manganese cobalt spinel
  • Ceramic coating
  • High temperature oxidation
  • Chromium evaporation

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