TY - JOUR
T1 - Chemical expansion, crystal structural stability, and oxygen permeability of SrCo0.4Fe0.6-xAlxO3-δ oxides
AU - Dong, Xueliang
AU - Xu, Zhi
AU - Chang, Xianfeng
AU - Zhang, Chun
AU - Jin, Wanqin
PY - 2007/12
Y1 - 2007/12
N2 - A series of SrCo0.4Fe0.6-xAlxO 3-δ (x=0, 0.1, 0.2, 0.3) perovskite oxides were synthesized using a gel-combustion method. The doping of Al ions and its effect on the crystal structural stability, chemical expansion, and oxygen permeability of SrCo0.4Fe0.6-xAlxO3-δ have been investigated. The introduction of Al ions suppressed the oxygen loss and reduced the chemical-induced expansion at high temperature. The oxygen permeability of SrCo0.4Fe0.6-xAlxO 3-δ membranes decreased with increasing Al content. When x=0.2, the order-disorder phase transition of SrCo0.4Fe0.6O 3-δ in nitrogen atmosphere was suppressed, and oxygen permeation was not deleteriously affected.
AB - A series of SrCo0.4Fe0.6-xAlxO 3-δ (x=0, 0.1, 0.2, 0.3) perovskite oxides were synthesized using a gel-combustion method. The doping of Al ions and its effect on the crystal structural stability, chemical expansion, and oxygen permeability of SrCo0.4Fe0.6-xAlxO3-δ have been investigated. The introduction of Al ions suppressed the oxygen loss and reduced the chemical-induced expansion at high temperature. The oxygen permeability of SrCo0.4Fe0.6-xAlxO 3-δ membranes decreased with increasing Al content. When x=0.2, the order-disorder phase transition of SrCo0.4Fe0.6O 3-δ in nitrogen atmosphere was suppressed, and oxygen permeation was not deleteriously affected.
UR - http://www.scopus.com/inward/record.url?scp=36949027677&partnerID=8YFLogxK
U2 - 10.1111/j.1551-2916.2007.02053.x
DO - 10.1111/j.1551-2916.2007.02053.x
M3 - 文章
AN - SCOPUS:36949027677
SN - 0002-7820
VL - 90
SP - 3923
EP - 3929
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 12
ER -