Structure and electrical conductivity of La0.84Sr0.16MnO3

Effect of Sr content on structure and electrical properties of La1−x Sr x MnO3 from ITSOFC cathode view point

“…The transformation of LSM from rhombohedral to cubic due to 60% Sr addition is in good agreement with the reporting [14][15][16]. In contrast, the phase transformation from rhombohedral to tetragonal structure, after an addition of 60 mol % Sr, has been observed due to change in preparative methods [17][18][19]. The phase transition from rhombohedral to cubic structure is attributed to an unisotropic lattice distortion on the partial replacement of La 3+ by Sr 2+ .…”

“…A polaron hopping mechanism, charge transported by the Mn 3+ -O -Mn 4+ network, has been suggested for electrical conductivity in alkaline earth-substituted LM and LaCrO 3 [11]. Furthermore, the polaron hopping mechanism suggests that maintaining compositional homogeneity within the perovskite lattice has been an important criterion for high electrical conductivity along with thermal and chemical stability at the working temperature [12].…”

Stable, easily sintered Ca–Zn-doped YCrO3 as novel interconnect materials for co-fired yttrium-stabilized zirconia-based solid oxide fuel cells

“…6 shows the temperature dependence of the conductivity of Y 0.7 Ca 0.3 Cr 1−x Zn x O 3−ı sintered at 1400 • C for 4 h in air. The increment of electrical conductivity of zinc-doped yttrium chromites can be explained by electronic compensation mechanism [23,24], as well as the increase of the relative density of the samples. According to Fig.…”

Area specific resistance of oxide scales grown on ferritic alloys for solid oxide fuel cell interconnects

“…Three different perovskites: La 0. 8 [3,[9][10][11][12][13]. They give information about influence of substoichiometry, different amount of strontium and presence of cobalt on ASR of the oxide scale.…”