Corrosion behavior of stainless steel in solid oxide fuel cell simulated gaseous environment

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Significant progress in reducing the operating temperature of solid oxide fuel cells (SOFC) from {approx}1000 C to {approx} 750 C may permit the replacement of currently used ceramic interconnects by metallic interconnects in planar SOFCs (PSOFC). The use of metallic interconnects will result in a substantial cost reduction of PSOFCs. The interconnects operate in severe gaseous environments, in which one side of the interconnect can be exposed to hydrogen and the other side to air or oxygen at temperatures up to 800 C. Similar environmental conditions can exist in devices used for separating hydrogen from CO after reforming methane and ... continued below

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8 pages

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Ziomek-Moroz, M.; Covino, Bernard S., Jr.; Holcomb, Gordon R.; Cramer, Stephen D.; Matthes, Steven A.; Bullard, Sophie J. et al. January 2003.

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Description

Significant progress in reducing the operating temperature of solid oxide fuel cells (SOFC) from {approx}1000 C to {approx} 750 C may permit the replacement of currently used ceramic interconnects by metallic interconnects in planar SOFCs (PSOFC). The use of metallic interconnects will result in a substantial cost reduction of PSOFCs. The interconnects operate in severe gaseous environments, in which one side of the interconnect can be exposed to hydrogen and the other side to air or oxygen at temperatures up to 800 C. Similar environmental conditions can exist in devices used for separating hydrogen from CO after reforming methane and steam. Type 304 stainless steel was selected for this base line study aimed at understanding corrosion processes in dual gas environments. This paper discusses the oxidation resistance of 304 stainless steel exposed to a dual environment gas at 800 C. The dual environment consisted of air on one side of the specimen and 1% hydrogen in nitrogen on the other side. The surface characterization techniques used in this study were optical and scanning electron microscopy, as well as various x-ray techniques.

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8 pages

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OSTI as DE00835681

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  • 17th Annual Conference on Fossil Energy Materials, Baltimore, MD (US), April 22-24, 2003

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  • Report No.: DOE/ARC-2003-011
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 835681
  • Archival Resource Key: ark:/67531/metadc782251

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  • January 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • Nov. 2, 2016, 5:37 p.m.

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Ziomek-Moroz, M.; Covino, Bernard S., Jr.; Holcomb, Gordon R.; Cramer, Stephen D.; Matthes, Steven A.; Bullard, Sophie J. et al. Corrosion behavior of stainless steel in solid oxide fuel cell simulated gaseous environment, article, January 2003; Albany, Oregon. (digital.library.unt.edu/ark:/67531/metadc782251/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.