Recent Development of SOFC Metallic Interconnect
نویسندگان
چکیده
منابع مشابه
Stress-induced roughness development during oxide scale growth on a metallic alloy for SOFC interconnects
Fe3Al intermetallics (Fe3Al, Fe3Al-Zr, Fe3Al-Zr,Mo and Fe3Al-Zr,Mo,Nb) were oxidized at 950 C in dry and humid (11 vol% water) synthetic air. Thermogravimetric measurements showed that the oxidation rates of the tested intermetallics were lower in humid air than in dry air (especially for Fe3Al-Zr,Mo and Fe3Al-Zr,Mo,Nb). The addition of small amounts of Zr, Mo or Nb improved the kinetics compar...
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There would be significant advantages to having anodes for solid oxide fuel cells (SOFC) that were capable of directly utilizing hydrocarbon fuels. Because conventional Ni-based anodes catalyze the formation of carbon fibers, new anode compositions are required for this application, but most of the materials that have been proposed exhibit either limited thermal stability or poor electrochemica...
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Reliability of SOFC stacks is a complex and key issue. This paper presents a simulation study including some degradation processes, namely nterconnect degradation and the anode reoxidation potential. Quantification for these phenomena has been included in a repeat element model to imulate stack degradation and study the influence of design and operating parameters on the degradation. Interconne...
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One of the most effective ways to improve oxidation resistance of interconnects used in solid oxide fuel cells (SOFCs) is to apply a layer of conductive protective coating. In this study, Crofer 22APU ferritic steel was coated in a titanium- based powder mixture by pack cementation method. The powder composition for titanium coating was Ti 20 wt.%, NH4Cl 5 wt.% (activator) and Al2O3 75 wt.%. Th...
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This paper reviews recent work on SOFC anode fabrication at the University of Pennsylvania. In this work, anode fabrication is based on the preparation of a porous YSZ matrix, into which electronic and catalytic components are added by impregnation of the appropriate metal salts. First, the methods used to prepare porous YSZ are described, along with a description of the structures that are obt...
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ژورنال
عنوان ژورنال: Journal of Materials Science & Technology
سال: 2010
ISSN: 1005-0302
DOI: 10.1016/s1005-0302(10)60049-7