Development of a metallic/ceramic composite for the deposition of thin-film oxygen transport membrane

作者：Xing Y; Baumann S^*; Uhlenbruck S; Ruettinger M; Venskutonis A; Meulenberg W A; Stoever D

来源：Journal of the European Ceramic Society, 2013, 33(2): 287-296.

DOI：10.1016/j.jeurceramsoc.2012.08.025

• Oxygen transport membranes
• Perovskite
• Composites
• NiCoCrAlY

Asymmetric perovskite membranes have an attractive potential in the application of O-2/N-2 gas separation for future membrane-based power plants using oxyfuel technology. In this study - a metal-supported membrane structure with a thin-film perovskite. layer and porous ceramic interlayers was developed. Porous NiCoCrAlY sintered at 1225 degrees C in H-2 was selected as the substrate based on a sufficient permeability and corrosion resistance in co-firing conditions. According to the oxidation behaviour of NiCoCrAlY, the temperature for co-firing of the substrate and the interlayers was defined as 1100 degrees C for 5 h in air. Two interlayers of La0.58Sr0.4Co0.2Fe0.8O3-delta were applied by screen printing. The top layer was deposited by magnetron sputtering with a thickness of 3.8 mu m. While gas-tightness was improved considerably, significant air-leakage was still detected. In summary, the successful development of a metal-perovskite-composite is shown, which acts as a basis for further development of a gas-tight metal-supported oxygen transport membrane structure.

• 出版日期2013-2