[HTML][HTML] Diffusion couple study of the interaction between Cr2O3 and MnCo2O4 doped with Fe and Cu

B Talic, PV Hendriksen, K Wiik, HL Lein - Solid State Ionics, 2019 - Elsevier
Manganese cobalt spinel oxides are promising coating materials for the protection of ferritic
stainless steel interconnects in solid oxide fuel cell (SOFC) stacks. The interaction between
such coatings and the steel is here studied using diffusion couples as a model system. The
interaction between MnCo 2 O 4, MnCo 1.7 Fe 0.3 O 4 and MnCo 1.7 Cu 0.3 O 4 spinels and
Cr 2 O 3 was studied in air at 900° C. In all cases, a reaction layer rich in Co and Cr formed
at the interfaces. Using Pt-particles to mark the original interface reveals that the reaction …
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