Efficient replacement of materials based on critical elements such as cobalt is one of the greatest challenges facing the field of solid oxide cells. New generation materials, free of cobalt show potential to replace conventional materials. However, these materials are characterized by poor ability to block chromium diffusion. This article described the study of CuMn1.7Fe0.3O4 (CMFO) spinel combined with single metal oxide (Y2O3 or Gd2O3) thin films as protective coatings for steel interconnects. CMFO was examined using XRD and TPR. Coated steel samples were oxidized in an air atmosphere at 700 °C for 4000 h. The coatings and oxide scale microstructures and cross-sections were examined by CRI, XRD, and SEM-EDX. The electrical properties of the steel-coating system were evaluated using Area Specific Resistance measurements. Based on the results obtained, it can be concluded that the use of thin layers of rare earth oxides allowed for better blocking of chromium diffusion.
Authors
- Bartłomiej Lemieszek link open in new tab ,
- mgr inż. Justyna Ignaczak link open in new tab ,
- Krystian Lankauf link open in new tab ,
- mgr inż. Patryk Błaszczak link open in new tab ,
- Maciej Bik,
- Marcin Zajac,
- Maciej Sitarz,
- prof. dr hab. inż. Piotr Jasiński link open in new tab ,
- dr hab. inż. Sebastian Molin link open in new tab
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1016/j.jeurceramsoc.2024.116743
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach
- Language
- angielski
- Publication year
- 2024
