This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1016/j.corsci.2008.10.010 in citations.
Evaluation of Commercial Alloys as Cathode Current Collector for Metal-Supported Tubular SOFCs
Evaluation of Commercial Alloys as Cathode Current Collector for Metal-Supported Tubular SOFCs
Ferritic stainless steels have become promising candidate materials for interconnects in tubular metal-supported solid oxide fuel cell stacks. A number of ferritic alloys containing between 18 and 26 mass% Cr and discrete changes in minor alloying elements and reactive elements were isothermally oxi...
Saved in:
Personal Name(s): | Montero, X. |
---|---|
Tietz, F. / Cassir, M. / Stöver, D. / Villareal, I. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEF-1 JARA-ENERGY; JARA-ENERGY |
Published in: | Corrosion science, 51 (2009) S. 110 - 118 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2009
|
Physical Description: |
110 - 118 |
DOI: |
10.1016/j.corsci.2008.10.010 |
Document Type: |
Journal Article |
Research Program: |
Solid Oxide Fuel Cell Rationelle Energieumwandlung |
Series Title: |
Corrosion Science
51 |
Subject (ZB): | |
Publikationsportal JuSER |
Ferritic stainless steels have become promising candidate materials for interconnects in tubular metal-supported solid oxide fuel cell stacks. A number of ferritic alloys containing between 18 and 26 mass% Cr and discrete changes in minor alloying elements and reactive elements were isothermally oxidized at 800 degrees C in air and their electrical resistance was measured with the objective of obtaining an overview of the properties relevant for applications for cathode side interconnect. The alloys containing Mn showed a (Mn,Cr)(3)O-4 spinel layer on top of a Cr2O3 oxide. The electrical conductivity of the steels forming this kind of oxide layer was higher than the measured for only Cr2O3 former or oxide dispersion strengthened alloys and increased when the alloy contained Ti or Nb. Oxide scale spallation was observed for F18TNb and E-Brite, both containing Si. The influence of different cyclic oxidations was studied for the Crofer22APU steel, showing an irregular oxide growth as well as an increase in conductivity of the oxide scale formed when 12-h cycles were applied. (c) 2008 Elsevier Ltd. All rights reserved. |