Funct. Mater. 2021; 28 1: 39-41.
doi:https://doi.org/10.15407/fm28.01.39
On the high temperature conductivity of ceramics La0.6Sr0.4Co0.2Fe0.8O3-δ -Ce0.8Sm0.2O1.9
Department of Materials Science and Engineering, Jilin Institute of Chemical Technology, 132022 Jilin, China
Abstract:
Perovskite-type ceramics La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and La0.6Sr0.4Co0.2Fe0.8O3-δ-Ce0.8Sm0.2O1.9(LSCF-GDC) prepared by the method of solid-state reaction were tested by SEM, and their conductivity-temperature relationships were measured by the direct current four-terminal method. The activation energies of small polarons of single-phase LSCF and LSCF-GDC are Ea1 = 9.92 kJ/mol and Ea2 = 12.34 kJ/mol, respectively.
Keywords:
Perovskite-type ceramics, conductivity-temperature, activation energies.
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