Tallgren, J.Bianco, M.Himanen, O.Thomann, O.Kiviaho, J.van Herle, J.2018-02-262018-02-262018-02-26201510.1149/06801.1597ecsthttps://infoscience.epfl.ch/handle/20.500.14299/145036Chromium poisoning is a widely recognized degradation process in solid oxide fuel cells (SOFC). Stainless steel interconnect plates, in direct contact with the cathode, have been identified as the major chromium source, raising a need for electrically conducting protective coatings for the interconnects. This work evaluates four different manganese-cobalt protective coatings manufactured on thin steel foils, made by three commercial companies and a research centre. Area specific resistance, coating microstructure, and chromium retention are compared. Measurements were done in a humid atmosphere over 1000 hours at 700 °C. An innovative measurement setup was used, in which the coated steel samples are stacked adjacent to thin palladium foils with a screen-printed lanthanum strontium cobalt layer, replicating an SOFC cathode. As a conclusion, TeerCoating Ltd’s and Turbocoating S.p.A’s coatings performed similar to the Sandvik Material Technology’s ceriumcobalt reference coating, and could be employed as such in SOFC applications.text::journal::journal article::research article