Chapter 43. High Temperature Seals for Solid Oxide Fuel Cells (Sofc)

  1. Edgar Lara-Curzio and
  2. Michael J. Readey
  1. Raj N. Singh

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291184.ch43

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

Singh, R. N. (2004) High Temperature Seals for Solid Oxide Fuel Cells (Sofc), 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.ch43

Author Information

  1. Department of Chemical and Materials Engineering University of Cincinnati, P.O. Box 210012, Cincinnati, OH 45241–0012

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:

  • YSZ;
  • SOFC;
  • MCFC;
  • SEM;
  • CMC

Summary

A variety of seals such as metal-metal, metal-ceramic, and ceramic-ceramic are required for a functioning SOFC. These seals must function at high temperatures between 600–900°C and in oxidizing and reducing environments of the fuels and air. Among the different type of seals probably the metal-metal seals can be readily fabricated using metal joining, soldering, and brazing techniques but the issue of oxidation at these high-temperatures needs to be considered for long-term survivability of all metal seals as well. This cannot be said for the metal-ceramic and ceramic-ceramic seals because the brittle nature of ceramics/glasses can lead to fracture and loss of seal integrity and functionality. Consequently, any seals involving ceramics/glasses require a significant attention and technology development for reliable SOFC operation. This paper is prepared to primarily address the needs and possible approaches for high temperature seals for SOFC.