Abstract
Some high-temperature alloys have been investigated in order to determine whether they are suitable as metallic interconnect materials in solid oxide fuel cell stacks. The requirements for such alloys are formulated. Thermal dilatometry and oxidation tests, as well as theoretical calculations of the stresses that are induced by differences in thermal expansion of the individual materials, have been performed. The results show that a chromium-rich alloy, with dispersions of fine Y2O3 particles, perform best among the samples investigated. Improvements are still needed in order to make the alloy fully applicable in a solid oxide fuel cell stack. Some suggestions for improvements are put forward.
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References
N. Q. Minh, J. Am. Ceram. Soc. 76 (1993) 563.
P. Zegers, in “Proceedings of the Third International Symposium on Solid Oxide Fuel Cells”, edited by S. C. Singhal and H. Iwahara (The Electron Chemical Society, Pennington), Honolulu (1993) p. 16.
K. Krist and J. D. Wright, ibid.in “ p. 782.
E. Ivers-Tiffée, W. Wersing, M. Schiessl and H. Greiner, Ber Bunsenges. Phys. Chem. 94 (1990) 978.
P. Kofstad and R. Bredesen, Solid State Ionics 52 (1992) 69
T. Kadowaki, T. Shiomitsu, E. Matsuda, H. Nakagawa, H. Tsuneizumi and T. Maruyama, ibid. 67 (1993) 65.
T. H. Etsel and S. N. Flengas, Chem. Rev. 70 (1970) 339.
A. Holt and P. Kofstad, Solid State Ionics 69 (1994) 137.
D. Stolten, E. Monreal and W. Müller, in “Proceedings of the Fuel Cell Seminar”, edited by C. Pax et al. (Courtesy Associates, Washington), Tucson, AZ (1992).
O. T. Iancu and D. Munz, in “Joining of Ceramics, Glass and Metal”, edited by W. Kraft (DGM, 1989) p. 257.
K. Kendall, in “Proceedings of the Fuel Cell Seminar” edited by S. C. Singhal and H. Iwahara (The Electron Chemical Society, Pennington, Tucson AZ), (1992).
W. Price and K. Kendall, in “Proceedings of the First European Solid Oxide Fuel Cell Forum”, edited by U. Bossel, (1994) p. 757.
M. F. Ashby, Acta Metall. 37 (1989) 1273.
S. P. S. Badwal, Solid State Ionics 52 (1992) 23.
R. Männer, E. Ivers-Tiffée and W. Wersing, in “Proceedings of the 2nd International Symposium on SOFC”, edited by F. Grosz, P. Zegers, S. C. Singhal and O. Yamamoto (1991) p. 715.
F. T. Ciacchi, K. M. Crane and S. P. S. Badwal, Solid State Ionics 73 (1994) 49.
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Linderoth, S., Hendriksen, P.V., Mogensen, M. et al. Investigations of metallic alloys for use as interconnects in solid oxide fuel cell stacks. JOURNAL OF MATERIALS SCIENCE 31, 5077–5082 (1996). https://doi.org/10.1007/BF00355908
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DOI: https://doi.org/10.1007/BF00355908