WUILLEMIN , Z.

Analyses performed on a stack operated for more than 4000h at 750°C at high fuel utilization (80%) revealed significant differences in aging behaviour of stack components when comparing fuel inlet and fuel outlet areas. Two samples were cut from the fuel inlet and outlet manifolds of the operated SOFC stack. The glass-ceramic sealing material...

A new approach for in-situ conductivity measurements of the Ni phase in Ni/YSZ cermet anode during its formation and redox cycling, applying impedance spectroscopy, is introduced. The electrochemical testing is combined with direct gases (H2, N2 and their mixtures) permeability measurements. The resistance of the samples, which has inductive...