Specimens of La0.6Sr0.4Co0.6Fe0.4O3 were studied by using electrical conductivity and high-temperature coulometric titration experiments. The chemical diffusion coefficients, for temperatures of between 923 and 1255K and O partial pressures of 0.03 to 1bar, ranged from 10-6 to 5 x 10-5cm2/s. The associated activation energies ranged from 95 to 117kJ/mol.

J.E.ten Elshof, M.H.R.Lankhorst, H.J.M.Bouwmeester: Solid State Ionics, 1997, 99[1-2], 15-22