University of Hertfordshire

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Original languageEnglish
Pages (from-to)2521-2527
JournalJournal of the European Ceramic Society
Volume28
Issue13
DOIs
Publication statusPublished - Sep 2008

Abstract

This work describes the design, development and performance of a glass-ceramic sealant used to join the ceramic electrolyte (YSZ wafer and anode-supported-electrolyte (ASE)) to the metallic interconnects (Crofer22 APU and AISI430) in planar SOFC stacks. The designed glass-ceramic sealant is a barium-free silica-based glass, which crystallizes by means of the heat treatment after being deposited on substrates by the slurry technique.
The sealing process of the glass-ceramic was optimized and joined ceramic/seal/metal samples were morphologically characterized and tested for 400 It in air atmosphere followed by 200 h in H-2-3H(2)O atmosphere at the fuel-cell operating temperature of 800 degrees C. The study showed that the use of the glass-ceramic was successful in joining the ceramic electrolyte to the metallic interconnect and in preventing adverse corrosion effects at the interface.

Notes

Original article can be found at: http://www.sciencedirect.com/ Copyright Elsevier [Full text of this article is not available in the UHRA]

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