Compatibility between glass sealants and electrode materials of solid oxide fuel cells |
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| Authors: | PIAO Jinhua SUN Kening Chen Xinbing |
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| Affiliation: | 1. Department of Applied Chemistry,Harbin Institute of Technology,Harbin 150001,China
2. Department of Applied Chemistry,Harbin Institute of Technology,Harbin 150001,China;Department of Materials Science and Engineering,Beijing Normal University,Beijing 100875,China |
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| Abstract: | BaO-CaO-Al2O3-SiO2-La2O3-B2O3 system glass materials were investigated as sealants for a solid oxide fuel cell (SOFC).The transition temperature (Tg) and the crystal temperature (Td) values decrease greatly with the increase of BaCO3 content when the other components do not change.For the thermal expansion coefficient (TEC) values,the trend is inverse.The sealant has superior thermal expansion coefficient matching properties with La(Sr)MnO3 (LSM) cathode,La(Sr)FeO3 (LSF) cathode,Ni-LDC (La doped CeO2) anode,and Ni-YSZ (yttria stabilized zirconia) cermet anode.The sealant also has superior stability,compatibility,and good bonding characteristic with these electrode materials at 800-900℃.The results indicate that the aluminosilicate system glass sealant possesses superior compatibility with electrode materials of the solid oxide fuel cell. |
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| Keywords: | solid oxide fuel cell aluminosilicate sealant glass-ceramic compatibility interface |
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