The Study of CaO-SiO₂-B₂O₃-Al₂O₃-La₂O₃ Glass Ceramics as Sealant for Planar Intermediate Temperature Solid Oxide Fuel Cells

Abstract:

CaO-SiO₂-B₂O₃-Al₂O₃-La₂O₃ system sealants with different B/Si ratios of 0.38~0.82 were prepared by high-temperature melting method for intermediate temperature solid oxide fuel cell (ITSOFC). The glass transition temperature (Tg) and softening temperature (Ts) of the sealant were analyzed by TG-DSC. The complex phases of the sealants detected by XRD were consistent with the calculation results generally. The resistivity of the sealants tested by electrochemical workstation was above 65 kΩ·cm², and the wetting angle was also calculated. The prepared sealants basically meet the sealing requirement for ITSOFC.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 558-561
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.558
• Online since: August 2013
• Authors: Jie Yu, Jian Jun Yang, Wen Hui Ma, Bo Yu, Rui Li, Jie Xing, Biao Qian, Ping Ning
• Keywords: Resistivity, Sealant, Solid Oxide Fuel Cell (SOFC), Wetting Angle

References

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DOI: 10.1023/a:1004332614379