Oxidation Kinetics of AISI ۴۳۰ Interconnects Coated by MnCo۲O۴ for Solid Oxide Fuel Cell Application Based on Fluid Dynamics

Manganese-cobalt (Mn-Co) spinel oxide (MCO) coatings were applied to SUS۴۳۰ interconnects to reduce oxidation and chromium diffusion, optimizing performance for intermediate-temperature solid oxide fuel cells (IT-SOFCs). After ۱۰۰۰ hours of oxidation at ۸۰۰ °C, the MCO-coated samples exhibited an area-specific resistance (ASR) of ۱۹.۳۸ mΩ cm², significantly lower than that of uncoated samples (۱۸۶.۸۴ mΩ cm²). Introducing a novel approach, the study correlates dimensionless fluid parameters with high-temperature conductivity, identifying oxygen inward diffusion as the key limiting factor for oxide-scale growth on coated interconnects

کلیدواژه ها:

Solid oxide fuel cells ، Interconnects ، Coatings ، Spinel ، Fluid flow ، Electrical conductivity.