Chapter 46. Development of a Compliant Seal for Use in Planar Solid Oxide Fuel Cells

  1. Edgar Lara-Curzio and
  2. Michael J. Readey
  1. K. Scott Weil and
  2. John S. Hardy

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291184.ch46

28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3

28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3

How to Cite

Weil, K. S. and Hardy, J. S. (2004) Development of a Compliant Seal for Use in Planar Solid Oxide Fuel Cells, in 28th International Conference on Advanced Ceramics and Composites A: Ceramic Engineering and Science Proceedings, Volume 25, Issue 3 (eds E. Lara-Curzio and M. J. Readey), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291184.ch46

Author Information

  1. Pacific Northwest National Laboratory P.O. Box 999 Richland, WA 99352

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2004

ISBN Information

Print ISBN: 9780470051498

Online ISBN: 9780470291184

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Keywords:

  • SODC;
  • CTE;
  • SEM;
  • EDX;
  • solid oxide fuel

Summary

We have developed a deformable seal for planar solid oxide fuel cells (pSOFCs) that can accommodate significant thermal mismatch between the adjoining components and still remain hermetic. Essentially composed of a thin stamped metal foil bonded to bom sealing surfaces, the seal offers a quasi-dynamic mechanical response to thermally generated stresses. It remains well adhered to both faying surfaces, i.e. non-sliding, but readily yields or deforms under modest memo-mechanical loading, thereby mitigating the transfer of these stresses to the adjacent ceramic and metal components. Initial thermal testing demonstrates mat the seal retains its original hermeticity and strength after a number of rapid cycles between ∼75°C and 750°C.