TY  - JOUR
AU  - Hilger, Martin
AU  - El Jardali, Khaled
AU  - Feyzi, Vafa
AU  - Vakhrameev, Daniil
AU  - Naumenko, Dmitry
AU  - Schwaiger, Ruth
AU  - Iribarren, Diego
AU  - Lenser, Christian
AU  - Guillon, Olivier
AU  - Menzler, Norbert H.
TI  - Towards sustainable interconnects for solid oxide cells: An integrated technical and environmental evaluation of coating methods
JO  - Journal of power sources
VL  - 659
SN  - 0378-7753
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2025-04052
SP  - 238471 -
PY  - 2025
AB  - This work presents a comprehensive evaluation of three industrially relevant coating processes – atmospheric plasma spraying (APS), wet powder spraying (WPS), and electrophoretic deposition (EPD) – for the application of MnCo1.9Fe0.1O4 (MCF) spinel-based protective layers on solid oxide cell (SOC) interconnects. Using Crofer-type ferritic stainless steels as substrate, the coatings were assessed with respect to their technical performance and environmental impact. Microstructural characterization, topography analysis for relevant interconnect structures, and mid-term exposure tests at 800 °C in air confirm that all three methods can produce uniform, well-adhering, and protective coatings compatible with SOC stack integration. While APS serves as a technologically mature reference, the suspension-based techniques WPS and EPD demonstrate comparable protective functionality after suitable thermal treatments. Furthermore, life cycle assessment reveals significant sustainability benefits for the newer methods – especially EPD – due to lower energy demand and enhanced material efficiency. The results highlight WPS and EPD as promising, environmentally advantageous alternatives for large-scale application of protective interconnect coatings in SOC systems.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.jpowsour.2025.238471
UR  - https://juser.fz-juelich.de/record/1046984
ER  -