Chapter 82. Evaluation of Sealing Glasses for Solid Oxide Fuel Cells

  1. Hua-Tay Lin and
  2. Mrityunjay Singh
  1. Ronald E. Loehman1,
  2. Hans Peter Dumm2 and
  3. Heidi Hofer2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294741.ch82

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3

How to Cite

Loehman, R. E., Dumm, H. P. and Hofer, H. (2002) Evaluation of Sealing Glasses for Solid Oxide Fuel Cells, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 23, Issue 3 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294741.ch82

Author Information

  1. 1

    Sandia National Laboratories Albuquerque, NM 87185–1349

  2. 2

    University of New Mexico Albuquerque, NM 87131

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375785

Online ISBN: 9780470294741

SEARCH

Keywords:

  • diamond saw;
  • silicon nitride;
  • sealants;
  • amorphous

Summary

We studied three glasses in the La-Al-alkaline earth borosilicate system for their suitability as materials for joining yttria stabilized zirconia (YSZ) ceramics for solid oxide fuel cell (SOFC) applications. We heated specimens of glass on YSZ using two thermal cycles: one to simulate sealing at 1000d̀C followed by operation at 850d̀C with cycling down to 500d̀C and back; and the other a 60 hr treatment at 850d̀C. The heat treatments crystallized all three glasses to some degree. All glasses wet and bonded to the YSZ and showed no evidence of cracking from the thermal cycling. There was evidence of slight interaction between the glasses and the YSZ after the 60 hr heat treatment.