Investigation of phase structure, sintering, and permeability of perovskite-type Ba0.5Sr0.5Co0.8Fe0.2O3−δ membranes
作者： Haihui Wang , Cristina Tablet , Armin Feldhoff , Jürgen Caro
DOI: 10.1016/J.MEMSCI.2005.03.046
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摘要: The high temperature phase structures of the perovskite-type oxide Ba0. 5Sr0. 5Co0. 8Fe0. 2O3− δ (BSCF) were characterized by in situ high-temperature X-ray diffraction, which revealed that BSCF exhibits a good phase reversibility and structure stability in air from room temperature to 1273K. The XRD patterns of BSCF oxide at 1173K in different atmospheres (air, 2% O2 in Ar and pure Ar) indicated that BSCF possesses an excellent phase stability at high temperatures not only in air but also in pure Ar. From the plot of the lattice constant …
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