TY - JOUR
T1 - Perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) oxides
T2 - Structural, reduction-tolerant, sintering, and electrical properties
AU - Lu, Hui
AU - Zhu, Linlin
AU - Kim, Jong Pyo
AU - Son, Sou Hwan
AU - Park, Jung Hoon
PY - 2012/2/23
Y1 - 2012/2/23
N2 - The perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) powders have been synthesized by the citrate gel method. Structural, reduction-tolerant, and sintering properties of the perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) oxides were studied by x-ray diffraction (XRD), thermogravimetry (TG), and scanning electron microscope (SEM). The enhanced structural stability of the Co-free La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Cr, Ti) oxides is ascribed to the higher metal-oxygen bonding energy of the Ti and Cr cations in the oxides. Electrical conductivities of the sintered La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) ceramics were measured, and increased as B = Co > Cr > Ti among the La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ oxides.
AB - The perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) powders have been synthesized by the citrate gel method. Structural, reduction-tolerant, and sintering properties of the perovskite La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) oxides were studied by x-ray diffraction (XRD), thermogravimetry (TG), and scanning electron microscope (SEM). The enhanced structural stability of the Co-free La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Cr, Ti) oxides is ascribed to the higher metal-oxygen bonding energy of the Ti and Cr cations in the oxides. Electrical conductivities of the sintered La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ (B = Ti, Cr, Co) ceramics were measured, and increased as B = Co > Cr > Ti among the La 0.6Sr 0.4B 0.2Fe 0.8O 3 - δ oxides.
KW - Electrical conductivity
KW - Perovskite oxides
KW - Reduction-tolerance
KW - Sintering
KW - Structural stability
UR - http://www.scopus.com/inward/record.url?scp=84862816104&partnerID=8YFLogxK
U2 - 10.1016/j.ssi.2012.01.001
DO - 10.1016/j.ssi.2012.01.001
M3 - Article
AN - SCOPUS:84862816104
SN - 0167-2738
VL - 209-210
SP - 24
EP - 29
JO - Solid State Ionics
JF - Solid State Ionics
ER -