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Glass-ceramic materials are commonly used as high-temperature seals for solid oxide fuel sell(SOFC)stacks.[1] A suitable glass-ceramic sealant for SOFC applications has to meet several requirements,such as electrical insulation,coefficient of thermal expansion(CTE)match and chemical compatible with membrane electrode assembly(MEA)and interconnect,and high-temperature stability and long-term durability at elevated temperatures(e.g.700°~900℃).