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Oxidation kinetics and electrical properties of oxide scales formed under exposure to air and Ar–H2-H2O atmospheres on the Crofer 22 H ferritic steel for high-temperature applications such as interconnects in solid oxide cell stacks
Abstract
A 100 h isothermal oxidation kinetics study for Crofer 22H was conducted in air and the Ar–H2-H2O gas mixture (p(H2)/p(H2O) = 94/6) in the range of 973–1123 K. The parabolic rate constant was independent of oxygen partial pressure in the range from 6.2 × 10−24 to 0.21 atm at 1023 and 1073 K, while at 973 and 1123 K it was higher in air than in Ar–H2-H2O. The scales consisted of Cr2O3 and manganese chromium spinel with an Mn:Cr ratio dependent on the oxidation conditions. Cross-scale resistance was evaluated with regards to the application of the steel in solid oxide fuel cells using a number of methods, including X-ray diffraction, scanning electron microscopy, confocal Raman imaging and area-specific resistance measurements.
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Authors (9)
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Tomasz Brylewski
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M Stygar
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Maciej Bik
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Piotr Jeleń dr inż.
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Maciej Sitarz
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Aleksander Gil
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Ming Chen
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Peter Vang Hendriksen
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
no. 94,
pages 209 - 222,
ISSN: 0360-3199 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Brylewski T., Molin S., Stygar M., Bik M., Jeleń P., Sitarz M., Gil A., Chen M., Hendriksen P. V.: Oxidation kinetics and electrical properties of oxide scales formed under exposure to air and Ar–H2-H2O atmospheres on the Crofer 22 H ferritic steel for high-temperature applications such as interconnects in solid oxide cell stacks// INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -,iss. 94 (2024), s.209-222
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ijhydene.2024.11.091
- Sources of funding:
-
- brak
- Verified by:
- Gdańsk University of Technology
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