Coated stainless steel 441 as interconnect material for solid oxide fuel cells: Oxidation performance and chromium evaporation

Grolig, Jan Gustav, 1986 (author): Chalmers tekniska högskola,Chalmers University of Technology

Froitzheim, Jan, 1981 (author): Chalmers tekniska högskola,Chalmers University of Technology

Svensson, Jan-Erik, 1965 (author): Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

Elsevier BV, 2014
2014
English.
In: Journal of Power Sources. - : Elsevier BV. - 0378-7753. ; 248, s. 1007-1013

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Abstract Subject headings

Reactive Element (RE) and RE/cobalt-coated stainless steel AISI 441 was exposed at Solid Oxide Fuel Cell (SOFC) cathode conditions (850 degrees C in air with 3% water content) for up to 500 h. The chromium evaporation was measured by applying the denuder technique. Uncoated material exhibited severe spallation which could be successfully prevented by using cerium or lanthanum coatings. By applying double layer coatings of cerium or lanthanum in combination with cobalt the oxidation rate was decreased and the chromium volatilisation was also about 90% lower than the uncoated material.

By the author/editor: Grolig, Jan Gust ...; Froitzheim, Jan, ...; Svensson, Jan-Er ...

About the subject

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