Pandiyan, SathishBianco, ManuelEl-Kharouf, AhmadTomov, Rumen, ISteinberger-Wilckens, Robert2022-07-182022-07-182022-07-182022-07-1510.1016/j.ceramint.2022.04.003https://infoscience.epfl.ch/handle/20.500.14299/189311WOS:000811251700002Inkjet printing technology was employed for the application of protective layer coatings in SOFC metallic interconnects. Aqueous-based spinel coatings were inkjet-printed on standard and surface nitrided K41 ferritic stainless-steel substrates. Inkjet-printed substrates were exposed to high-temperature oxidation and Area Specific Resistance (ASR) tests for 1000 h at 700 degrees C in air with 3% volume humidity, simulating SOFC cathode environment. Performance of inkjet printed coatings and effect of nitriding stainless-steel substrates were evaluated based on chromium migration/retention and Area Specific Resistance. Sol-gel infiltration was introduced to develop a scaffold layer over the porous microstructure. With the ASR reduced to a level ~60 m omega cm2 and chromium concentration in the getter (cathode) material below 1 atomic%, close to the detection threshold, the protective layers produced via inkjet printing present a promising solution for SOFC interconnector applications.Materials Science, CeramicsMaterials Sciencesofc interconnectorsferritic stainless steelprotective coatinginkjet printingnitridinghigh temperature corrosionmetallic interconnectprotective-coatingscorrosion-resistanceoxidation behaviorelectrolyte layerscathode materialssofctemperatureconductivityfabricationtext::journal::journal article::research article