Fabrication and Oxidation Behavior of the Cu–Fe Spinel Coating for SOFC Steel Interconnect Applications
Source abstract
Abstract
Cu–Fe spinel has recently attracted considerable interest as a protective coating for solid oxide fuel cell steel interconnects. In this study, Cu–Fe spinel coatings were deposited on SUS 430 steel substrates via a coating route of the dip-coating process. Oxidation tests were investigated in laboratory air at up to 800 °C for five (5) 24 h (24 h) cycles up to 120 h. The area-specific resistance (ASR) of the samples was measured by a standard four-probe method. The experimental results indicated that the CuFe 2 O 4 spinel powders with fine grain size were successfully synthesized from the sol–gel method. The oxidation kinetics of Cu–Fe spinel-coated steel obeyed a parabolic law, showing a parabolic rate constant of 1.38 × 10 –14 g 2 cm –4 s –1 . The ASR value of the coated samples was about 11.2 mΩ cm 2 at 800 °C. The Cu–Fe spinel coating improved both the high-temperature oxidation resistance and the electrical conductivity of the steel interconnects.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 86 Hongqi Avenue, Ganzhou 341000, People’s Republic of China
Ganzhou Engineering Technology Research Center of Green Metallurgy and Process Intensification, Ganzhou 341000, People’s Republic of China
Jiangxi College of Applied Technology, No. 9 Wenfeng Road, Ganzhou 341000, People’s Republic of China
Key Laboratory of Ionic Rare Earth Resources and Environment, Ministry of Natural Resources, Ganzhou 341000, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangxi Province · Science and Technology Research Project of Jiangxi Provincial Department of Education · Jiangxi University of Science and Technology Landing Project
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