期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 397, 期 1-2, 页码 271-283出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2005.02.047
关键词
SOFC interconnects; ferritic stainless steels; chromium-based alloys
One of the challenges in improving the performance and cost-effectiveness of solid oxide fuel cells (SOFCs) is the development of suitable interconnect materials. The interconnect material is in contact with both the anode and the cathode, and thus must be stable with both electrode materials and in oxidizing and reducing environments. The interconnect material must also maintain a low electrical resistance during cell operation to avoid decreased efficiency due to ohmic losses. The common feature of the two approaches (metallic and ceramic) to the development of interconnect materials is the presence of chromium. The most promising ceramic materials are chromites, while the most promising metallic materials are chromia-forming alloys. The focus of this paper is comparison of metallic alloys for use as interconnects in solid oxide fuel cells, in terms of properties including oxidation resistance, volatility, electrical resistance and thermal expansion. (c) 2005 Elsevier B.V. All rights reserved.
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