中文摘要：

介绍了对SrCo0．8Fe0.2O3-δ、SrCo0.8Fe0.1Sn0.1O3-δ两种透氧膜材料相组成、热学性能及氧渗透性能的研究，发现实验中获得的SrCo0．8Fe0.2O3-δ透氧膜材料具有长期的相组成稳定性；在它的B位进一步用Sn取代部分Fe，获得名义组成SrCo0.8Fe0.1Sn0.1O3-δ样品，具有典型的双相组成特征．与单相SrCo0.8Fe0.2O3-δ相比，双相结构SrCo0.8Fe0.1Sn0.0O3-δ样品的热膨胀率降低，抗热冲击性能增加显著；同时，氧渗透性能也有一定程度的提高，如1．2mm厚的SrCo0.8Fe0.2O3-δ陶瓷膜样品在1000℃具有1．87×10^-6mol.com^-2·s^-1的透氧率（PO2（h）=2．09×10^4Pa，PO2（1）=1．2×10^3Pa），同样条件下的SrCo0.8Fe0.1Sn0.1O3-δ样品透氧率为2．49×10^-6mol．cm^-2．s^-1．

英文摘要：

The phase composition, thermal shocking resistance and the separating properties of both SrCo0.8Fe0.2O3-δ （SCF） and SrCo0.8Fe0.1Sn0.1O3-δ （SSCF） membranes were investigated systematically. It was found the as prepared SCF had long-term phase stability, and the SSCF had the composite feature with dual phase composition. As compared with the SCF, the SSCF had a more promoted thermal shocking resistance, which related to the decreasing of thermal expansion coefficient of it in comparison with the former. Furthermore, a permeation rate of 1.87×10^-6mol.cm^-2.s^-1 was obtained on the as-prepared SCF membrane at 1000℃ and under oxygen partial pressure gradient of the Po2（h）/Po2（1）=0.209atm /0.012atm, and at the same measuring condition, the permeability was 2.49× 10^-6mol.cm^-2.s^-1 for the as prepared SSCF one.