High temperature gas seals
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United States of America Patent
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Sep 21, 2010
Grant Date -
Jul 15, 2004
app pub date -
Dec 23, 2003
filing date -
Dec 24, 2002
priority date (Note) -
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Abstract
A flexible seal for use in a solid oxide fuel cell stack is formed from a fiber matrix with a plurality of solid particles through tape casting method. The fibers and particles are preferably ceramic and may be formed from alumina or zirconia. The seal may be formed by forming a slurry of fibers, particles, a binder and a non-aqueous solvent, tape casting the slurry, drying the tape seal, die-cutting, prior to installation in the fuel cell stack.
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