Conductivity of Fe2O3-doped YSZ

Effect of 2 mol.% Fe₂O₃ addition on conductivity of yttria stabilized zirconia ceramics (YSZ, 6–12 mol.% Y₂O₃) was established. For Fe doped material, it was shown that conductivity demonstrates maximum at 10 mol.% Y₂O₃, and its value increases by 1.4 times. Conductivity maximum corresponds with the minimal volume of crystal lattice. Discussion of results was performed in terms of the model that assumes the control effect of hydrostatic pressure on oxygen ions diffusion.