Novel glass-ceramic composition as sealant for SOFCs

Federico Smeacetto, Auristela De Miranda, A. Chrysanthou, Enrico Bernardo, Michele Secco, Massimiliano Bindi, Milena Salvo, Antonio G. Sabato, Monica Ferraris

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    25 Citations (Scopus)
    106 Downloads (Pure)

    Abstract

    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 Mn1.5Co1.5O4-coated Crofer22APU. 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 850C and provide an excellent compatibility with both the Mn1.5Co1.5O4-coated Crofer22APU and the anode-supported electrolyte. In particular, Mn1.5Co1.5O4-coated Crofer22APU/sealant/anode-supported-electrolyte joined samples have been submitted to thermal tests (in air atmosphere) from RT to 800C (SOFC operating temperature) up to 500 h. No interactions, cracks formation, or failure were observed at the Mn1.5Co1.5O4-coated Crofer22APU/sealant interface and between the glass-ceramic and the anode-supported-electrolyte after 500 h of thermal tests in air atmosphere.

    Original languageEnglish
    Pages (from-to)3835-3842
    Number of pages8
    JournalJournal of the American Ceramic Society
    Volume97
    Issue number12
    Early online date11 Sept 2014
    DOIs
    Publication statusPublished - 10 Dec 2014

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