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Cost-effective methods of fabricating thin rare-earth element layers on SOC interconnects based on low-chromium ferritic stainless steel and exposed to air, humidified air or humidified hydrogen atmospheres
Abstract
Most oxidation studies involving interconnects are conducted in air under isothermal conditions, but during real-life solid oxide cell (SOC) operation, cells are also exposed a mixture of hydrogen and water vapor. For this study, an Fe–16Cr low-chromium ferritic stainless steel was coated with different reactive element oxides – Gd2O3, CeO2, Ce0.9Y0.1O2 – using an array of methods: dip coating, electrodeposition and spray pyrolysis. The samples underwent oxidation experiments carried out over 100 h in three different atmospheres at 800 °C: air, an air/H2O mixture, and an Ar/H2/H2O mixture. The influence of different atmospheres on the corrosion of the Fe–16Cr steel was determined via oxidation kinetics studies; the corrosion product was evaluated using X-ray diffraction, scanning electron microscopy and area-specific resistance (ASR) measurements. All coated samples exhibited lower parabolic oxidation rate constants than bare steel and most also had lower ASR. The applied modifications were found to be sufficiently effective to allow the investigated low-chromium steel to be considered for application as an interconnect material for SOCs.
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Authors (6)
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Łukasz Mazur
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Paweł Winiarski
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Tomasz Brylewski
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
no. 83,
pages 1282 - 1293,
ISSN: 0360-3199 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Mazur Ł., Winiarski P., Kamecki B., Ignaczak J., Molin S., Brylewski T.: Cost-effective methods of fabricating thin rare-earth element layers on SOC interconnects based on low-chromium ferritic stainless steel and exposed to air, humidified air or humidified hydrogen atmospheres// INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -,iss. 83 (2024), s.1282-1293
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ijhydene.2024.08.158
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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