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Novel Glass‐Ceramic Composition as Sealant for SOFC s
Author(s) -
Smeacetto Federico,
De Miranda Auristela,
Chrysanthou Andreas,
Bernardo Enrico,
Secco Michele,
Bindi Massimiliano,
Salvo Milena,
Sabato Antonio G.,
Ferraris Monica
Publication year - 2014
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.13219
Subject(s) - sealant , materials science , ceramic , solid oxide fuel cell , electrolyte , composite material , anode , sintering , compatibility (geochemistry) , glass ceramic , thermal expansion , chemical engineering , chemistry , electrode , engineering
This work deals with the design, the characterization, and testing of a novel glass‐ceramic to be used as sealant for planar solid oxide fuel cells and its compatibility with Mn 1.5 Co 1.5 O 4 ‐coated Crofer22 APU . Thermal, sintering, and crystallization behavior and thermo mechanical properties of the sealant are reviewed and discussed, indicating therefore that these compositions can be deposited at 850°C and provide an excellent compatibility with both the Mn 1.5 Co 1.5 O 4 ‐coated Crofer22 APU and the anode‐supported electrolyte. In particular, Mn 1.5 Co 1.5 O 4 ‐coated Crofer22 APU /sealant/anode‐supported‐electrolyte joined samples have been submitted to thermal tests (in air atmosphere) from RT to 800°C ( SOFC operating temperature) up to 500 h. No interactions, cracks formation, or failure were observed at the Mn 1.5 Co 1.5 O 4 ‐coated Crofer22 APU /sealant interface and between the glass‐ceramic and the anode‐supported‐electrolyte after 500 h of thermal tests in air atmosphere.