This analysis demonstrates improved oxidation resistance and mechanical strength in novel alloys for SOFC and SOEC interconnectors, indicating advancements in energy technologies.
This study presents the design and validation of novel master alloy for powder injection moulding (PIM) and material extrusion (MEX) additive manufacturing of interconnectors for SOFC and SOEC systems. Using Crofer30 as a baseline, alloys with varying cobalt, manganese, and copper contents were developed to optimize thermal expansion, oxidation resistance, and mechanical strength. Feedstock formulations enabled defect-free interconnectors in pellet form for PIM and MEX. Sintering at 1320 °C achieved near-full densification with dispersed precipitates, enhancing hardness compared to Crofer30. Performance was evaluated through oxidation and hydrogenation tests across different temperatures, with microstructural and electrochemical analyses confirming improved corrosion and oxidation resistance. These advancements address current manufacturing challenges, supporting the development of efficient, durable, and cost-effective SOFC|SOEC interconnectors, and significantly advancing green energy technologies.
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Lamo et al. (2025) studied this question.
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