Composite sealant materials for solid oxide fuel cells
AssigneeAlliedSignal Inc.
InventorsLiang A. Xue, James Piascik, Jean Yamanis, Gregory Lear, James Powers, Daniel Dalfonzo
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Abstract
A sealant for a solid oxide fuel cell comprises a glass material that acts as a matrix, with the glass material being present between about 40 to 90 wt. %. A gap-filler material is also in the sealant and selected from the group consisting of a metal material and a ceramic material, with the gap-filler material being present between about 10 to 60 wt. %. The sealant can seal a gap as large as about 3 mm.
Claims21
A composite sealant, comprising:
- a glass material that acts as a matrix, said glass material being present at least at about 40 wt. % ;
- and
- a filler material that acts as a gap-filler, said filler material being present at least at about 10 wt. %, with said filler material comprising Ni, Fe, and Cr.
A sealant for a solid oxide fuel cell, comprising:
- a glass material that acts as a matrix, said glass material being present at not more than about 90 wt. %;
- and
- a filler material that acts as a gap-filler, said filler material being present at not more than about 60 wt. %, with said filler material comprising about 12-77 wt. % Ni, 3-65 wt. % Fe. 16-23 wt. % Cr, 0-15 wt. % W, 0-6 wt. % Co, 0-5 wt. % Al, 0-3 wt. % Mo, 0-3 wt. % Mn, 0-2 wt. % Si, and 0-1 wt. % Y;
- whereby said sealant can seal a gap greater than about 1 mm.
A sealant for a solid oxide fuel cell, comprising:
- a glass material that acts as a matrix, said glass material being present between about 40 to 90 wt. %;
- and
- a gap-filler material selected from the group consisting of a a ceramic material and metal material comprising Ni, Fe, and Cr, said gap-filler material being present between about 10 to 60 wt. %,
- whereby said sealant can seal a gap as large as about 3 mm.
A sealant for a solid oxide fuel cell, comprising:
- a glass material that acts as a matrix, said glass material being present at not more than about 90 wt. % ;
- and
- a filler material that acts as a gap-filler, said filler material being present at not more than about 60 wt. %, with said filler material comprising about 8 mol.% yttria stabilized zirconia.
Dependencies are inferred from the claim text.