Regensburg 2022 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 29: Caloric Effects in Magnetic Materials
MA 29.9: Vortrag
Donnerstag, 8. September 2022, 11:30–11:45, H47
Eletrochemical corrosion study of La(FeSi)13H1,5 in diverse chemical environments — •Ulysse Rocabert1, Falk Munch2, Maximilian Fries2, Benedict Beckmann1, Konrad Loewe3, Hugo Vieyra3, Matthias Katter3, Alexander Barcza3, Wolfgang Ensinger1, and Oliver Gutfleisch1 — 1Technische Universität Darmstadt — 2MagnoTherm Solutions GmbH — 3Vacuumschmelze GmbH & Co
Hydrogenated La(FeMnSi)13 alloys represent a promising material class for magnetocaloric cooling at ambient temperatures, but contain highly oxophilic elements and are chemically sensitive. The development of protection strategies ensuring long-term stability is required and so analysis focused on Linear sweep voltammetry as the main analytical tool were performed in preferably buffered electrolytes with pH values reaching from moderately acidic to strongly alkaline to study different passivation strategies.