摘要 |
A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.-900° C., the seal having a CTE in the 100x10<SUP>-7</SUP>/° C. to 120x10<SUP>-7</SUP>/° C., wherein the sealing material comprises in weight %, of: (i) a 80 wt % to 100 wt % glass frit, the glass frit itself having a composition comprising in mole percent of: SiO<SUB>2 </SUB>15-65; Li<SUB>2</SUB>O 0-5; Na<SUB>2</SUB>O 0-5; K<SUB>2</SUB>O 0-10; MgO 0-5; CaO 0-32; Al<SUB>2</SUB>O<SUB>3 </SUB>0-10; B<SUB>2</SUB>O<SUB>3 </SUB>0-50; SrO 0 to 25, wherein the total amount of alkalis is less than 10 mole %; and (ii) zirconia or leucite addition 0 wt % to 30 wt.
|