The plasma spray process was used to form 70%NiCrAlY + 30%TiO2 and 25%Cr2O3 5%YSZ cermet coatings on MDN-420 special steel alloy . Cyclic oxidation testing conducted coated uncoated specimens at 700°C under a static air environment. Thermogravimetric analysis applied establish the kinetics. X-ray diffraction (XRD), scanning electron microscopy (SEM)/energy-dispersive x-ray spectroscopy (EDS), p...

To assess the risk of failure various components in solid oxide cell (SOC) stacks, temporal evolution stresses from sintering and thermal gradients operating stacks must be known. In this work it is shown experimentally that residual a are relaxed and, most cases, go to zero at point chemical reduction structurally dominant fuel electrode NiO-YSZ Ni-YSZ. This essential for understanding modelin...