This title appears in the Scientific Report :
2002
Please use the identifier:
http://dx.doi.org/10.1023/A:1013336510729 in citations.
Corrosion and Interdiffusion in a Ni/Fe-Cr-Al Couple Used for the Anode-Side of Multi-layered Interconnector for SOFC Applications
Corrosion and Interdiffusion in a Ni/Fe-Cr-Al Couple Used for the Anode-Side of Multi-layered Interconnector for SOFC Applications
Under operating conditions in solid-oxide fuel cells (SOFC), metallic-interconnect plates form oxide scales (e.g., Cr2O3, Al2O3) on their surface, which have an electrically insulating effect and increase the contact resistance between the interconnect and the electrodes. In order to ensure high ele...
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Personal Name(s): | Meulenberg, W. A. |
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Gil, A. / Wessel, E. / Buchkremer, H. P. / Stöver, D. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IWV-1 Werkstoffstruktur und Eigenschaften; IWV-2 |
Published in: | Oxidation of metals, 57 (2002) |
Imprint: |
Dordrecht [u.a.]
Springer Science + Business Media B.V
2002
|
DOI: |
10.1023/A:1013336510729 |
Document Type: |
Journal Article |
Research Program: |
Solid Oxide Fuel Cell Brennstoffzelle |
Series Title: |
Oxidation of Metals
57 |
Subject (ZB): | |
Publikationsportal JuSER |
Under operating conditions in solid-oxide fuel cells (SOFC), metallic-interconnect plates form oxide scales (e.g., Cr2O3, Al2O3) on their surface, which have an electrically insulating effect and increase the contact resistance between the interconnect and the electrodes. In order to ensure high electrical conductivity between the electrodes and the interconnects, the formation of oxide scales on the interconnect surface must be prevented or minimized. The present work shows possibilities for improved contacts at the anodic side in solid-oxide fuel cells by plating an Fe-Cr-5.7Al interconnect with a Ni foil. Contact-resistance measurements and microscopic studies show the electrical behavior and corrosion of materials used at 800degreesC under an Ar/4 vol.% H-2/3 vol.% H2O atmosphere. The results reveal that the interconnects coated with nickel exhibit low aging rates in the investigations performed and are thus suitable for use on the anode side. |