Ionics

, Volume 18, Issue 5, pp 441–447 | Cite as

Development and characterisation of glass and glass ceramic sealants for solid oxide electrolyser cells

  • Hélène Nonnet
  • Hichem Khedim
  • François O. Méar
Original Paper

Abstract

Glass and glass ceramic are now well known for their high performances as sealants operating around 800 °C in solid oxide electrolyser cell. Several new formulations have been prepared and investigated: silica alkali borosilicate glass formulations that will create a glass sealant and calcium aluminosilicate formulations that will create a glass ceramic sealant. Thermal and physicochemical properties of several glasses and glass ceramics along with the crystallisation behaviour were investigated. The glass transition temperatures (Tg) of the prepared glasses were found to be within the range of 600–730 °C. Shrinkage, sintering, softening, deformation and crystallisation temperatures of the parent glasses have been measured by hot stage microscopy. Microstructure and chemical composition of crystalline phases have been investigated using microprobe analysis. Bonding characteristics as well as chemical interactions of the parent glasses with yttria-stabilised zirconia (YSZ®) electrolyte and high chromium steel-based interconnect (Crofer®) have also been studied.

Keywords

Solid oxide electrolyser cell (SOEC) Sealing materials Glass Glass ceramic Interface 

Notes

Acknowledgments

The authors would like to acknowledge Mrs. Charlène Vallat and Mr. Bruno Penelon from CEA Marcoule laboratory DTCD/SECM/LDMC for the SEM observations, DTA and viscosity measurements and Mrs. Emmanuelle Brackz from CEA Marcoule laboratory DTEC/SGCS/LMAC for the microprobe results.

References

  1. 1.
    Fergus JW (2005) Sealants for solid oxide fuel cells. J Power Sources 147:46–57CrossRefGoogle Scholar
  2. 2.
    Lessing PA (2007) A review of sealing technologies applicable to solid oxide electrolysis cells. J Mater Sci 42:3465–3476CrossRefGoogle Scholar
  3. 3.
    Singh RN (2007) Sealing technology for solid oxide fuel cells (SOFC). Int J Appl Ceram Technol 4:134–144 (Singh 2007, Donald 2007)CrossRefGoogle Scholar
  4. 4.
    Donald IW, Metcalfe BL, Gerrard LA (2008) Interfacial reactions in glass-ceramic-to-metal seals. J Am Ceram Soc 91:715–720CrossRefGoogle Scholar
  5. 5.
    Nonnet H et al (2011) “Glass compositions for joints of devices operating at high temperatures, and assembly method using same” Patent WO 2011/000847 A1 January 6, 2011Google Scholar
  6. 6.
    Nonnet H et al (2011) “Glass-ceramic compositions for joints of appliances operating at high temperatures, and assembly method using said compositions” Patent WO 2011/121095 A2 October 6, 2011Google Scholar
  7. 7.
    Ley KL, Krumpelt M, Kumar R, Meiser JH, Bloom I (1996) Glass-ceramic sealants for solid oxide fuel cells: part I. Physical properties. Int J Mater Res 11:1489–1493CrossRefGoogle Scholar
  8. 8.
    Pascual MJ, Durán A, Pascual L (2002) Sintering Process of glasses in the system Na2O-B2O3-SiO2. J Non-Cryst Solids 306:58–69CrossRefGoogle Scholar
  9. 9.
    Khedim H, Connelly A, Nonnet H, Coillot D, Méar FO, Montagne L (2010) Characterization and performance of glass-ceramic sealants for SOECs 12th International Ceramic Congress. Trans Tech Publication, Montecatini Terme, pp 76–82Google Scholar
  10. 10.
    Scholze H (1962) Dtsch Ver Keram Ges 391:63Google Scholar
  11. 11.
    Pascual MJ, Durán A, Prado MO (2005) A new method for determining fixed viscosity points of glasses. Phys Chem Glasses 46:512–520Google Scholar

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Hélène Nonnet
    • 1
  • Hichem Khedim
    • 1
  • François O. Méar
    • 2
  1. 1.CEA, DENBagnols-sur-Cèze CedexFrance
  2. 2.UCCS-Unité de Catalyse et Chimie du solide, UMR CNRS 8181, Ecole Nationale Supérieure de Chimie de LilleUniversité des sciences et Technologies de LilleVilleneuve d’Ascq CedexFrance

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