Copper based conversion coatings on ferritic stainless strip steel as solid oxide fuel cell interconnects: Oxidation performance and chromium evaporation
Paper in proceedings, 2013

Ferritic stainless steels such as Crofer 22 H or Sanergy HT have been proven to be effective interconnect materials when additionally coated. These coatings, mainly based on cobalt spinels, successfully prevent chromium evaporation and are stable for long exposure times. A new approach is using copper based spinel coatings which are promising concerning price, conductivity and stability. This investigation is dedicated to a selection of copper spinel conversion coatings, their stability and ability to prevent chromium evaporation. Chromium release was monitored in humidified air (at 850 °C) using the denuder technique. The coatings were post analysed utilizing electron microscopy.

Author

Jan Gustav Grolig

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

H. Abdesselam

Université de Bourgogne

M. Gas

Université de Bourgogne

Hannes Falk Windisch

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Jan Froitzheim

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Jan-Erik Svensson

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

ECS Transactions

1938-5862 (ISSN) 1938-6737 (eISSN)

Vol. 57 1 2339-2347

Subject Categories

Inorganic Chemistry

DOI

10.1149/05701.2339ecst

More information

Latest update

8/29/2018