Formation of conductive oxide scale on 33NK and 47Nd interconnector alloys for solid oxide fuel cells

Autor: S. A. Belyakov, A. A. Solodyankin, D. A. Krainova, Maxim V. Ananyev, A.V. Kuzmin, A.S. Artamonov, N. S. Saetova, V.A. Eremin, Robert Steinberger-Wilckens, Andrey S. Farlenkov, A. V. Khodimchuk
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Control and Optimization
Materials science
SCALE (DEPOSITS)
SOLID OXIDE FUEL CELLS (SOFC)
020209 energy
Alloy
Oxide
Energy Engineering and Power Technology
GLASS
02 engineering and technology
Conductivity
engineering.material
SEALANTS
chemistry.chemical_compound
CHROMIUM ALLOYS
ELECTROCRYSTALLIZATION
Electrical resistance and conductance
OXIDE SCALE
0202 electrical engineering
electronic engineering
information engineering
GLASS SEALANTS
GLASS SEALANT
ELECTRICAL RESISTANCE
Electrical and Electronic Engineering
Composite material
Engineering (miscellaneous)
steel-interconnector
Renewable Energy
Sustainability and the Environment
oxide scale
Sealant
POTASSIUM ALLOYS
Interconnector
Adhesion
021001 nanoscience & nanotechnology
GAS FUEL PURIFICATION
NEODYMIUM ALLOYS
solid oxide fuel cells (SOFC)
electrocrystallization
chemistry
STEEL-INTERCONNECTOR
PHYSICOCHEMICAL PROPERTIES
ELECTRICAL RESISTANCES
electrical resistance
engineering
Surface modification
SOLID OXIDE FUEL CELLS (SOFC)
ELECTROCRYSTALLIZATION
0210 nano-technology
glass sealant
INTERCONNECTORS
ELECTRIC RESISTANCE
Energy (miscellaneous)
Zdroj: Energies
Volume 12
Issue 24
Popis: Two grades of chromium-free alloys were studied in order to apply them as interconnectors for solid oxide fuel cells. The surface modification methods were proposed for each alloy with the purpose of forming of oxide scales considering the required physicochemical properties. Investigations of the structure and properties of the obtained oxide scales were performed and the efficiency of the chosen surface modification methods was approved. The samples with the surface modification exhibited higher conductivity values in comparison with the nonmodified samples. A compatibility study of samples with surface modification and glass sealant of chosen composition was accomplished. The modified samples demonstrated good adhesion during testing and electrical resistance less than 40 mOhm/cm2 at 850 °
C in air, which allowed us to recommend these alloys with respective modified oxide scales as interconnectors for SOFC.
Databáze: OpenAIRE
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