Author/Authors :
Wang، نويسنده , , S and van der Heide، نويسنده , , P.A.W and Chavez، نويسنده , , C and Jacobson، نويسنده , , A.J and Adler، نويسنده , , S.B، نويسنده ,
Abstract :
Electrical conductivity relaxation (ECR) experiments were carried out on La0.6Sr0.4Fe0.8Co0.2O3−δ (LSFCO) in the temperature range of 840 to 910 °C and in the oxygen partial pressure range of 0.01 to 0.05 atm. The effects of annealing at 900 °C on the oxygen transport properties were investigated for individual samples. The values of DO2−=D̃O/ΓO and kex=kchem/ΓO agree well with the result from isotope-exchange depth profile (IEDP) experiments.
Keywords :
Diffusion coefficient , La0.6Sr0.4Fe0.8Co0.2O3?? , Surface exchange , Electrical conductivity relaxation
