Y2O3-BaO-SiO2-B2O3-Al2O3 glass sealant for solid oxide fuel cells

▶ The YBA glass has been studied as potential SOFC sealants. The resistivity of the YBA glass below 800 °C is over 9.1 × 104 Ω cm which can fulfill the requirement of SOFC. The YBA glass has a CTE of 11.64 × 10−6 K−1 near other SOFC components below 873 K and it becomes flexible over that temperature. It was proved the YBA glass adhere well to YSZ and other SOFC components according to the SEM photos. Preliminary results demonstrated that the YBA glass was the most promising sealant for planar SOFC.