Effect of binder burnout on the sealing performance of glass ceramics for solid oxide fuel cells

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dc.authorid0000-0002-7306-9784
dc.contributor.authorErtugrul, Tugrul Y.
dc.contributor.authorCelik, Selahattin
dc.contributor.authorMat, Mahmut D.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractThe glass ceramics composite sealants are among few materials suitable for the solid oxide fuel cells (SOFC) due to their high operating temperatures (600 degrees C-850 degrees C). The glass ceramics chemically bond to both the metallic interconnector and the ceramic electrolyte and provide a gas tight connection. A careful and several stages manufacturing procedure is required to obtain a gas tight sealing. In this study, effects of binder burnout process on the sealing performance are investigated employing commercially available glass ceramic powders. The glass ceramic laminates are produced by mixing glass ceramic powders with the organic binders and employing a tape casting method. The laminates are sandwiched between the metallic interconnectors of an SOFC cell. The burnout and subsequent sealing quality are analyzed by measuring leakage rate and final macrostructure of sealing region. The effects of heating rate, dead weight load, solid loading, carrier gas and their flow rates are investigated. It is found that sealing quality is affected from all investigated parameters. While a slower heating rate is required for a better burnout, the mass flow rate of sweep gas must be adequate for removal of the burned gas. The leakage rate is reduced to 0.1 ml min(-1) with 2 degrees C min(-1) + 1 degrees C min(-1) heating rate, 86.25% solid loading, 200 N dead weight load and 500 ml min(-1) sweep gas flow rate. (C) 2013 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.jpowsour.2013.05.106
dc.identifier.endpage783
dc.identifier.issn0378-7753
dc.identifier.scopus2-s2.0-84879348774
dc.identifier.scopusqualityQ1
dc.identifier.startpage775
dc.identifier.urihttps://dx.doi.org/10.1016/j.jpowsour.2013.05.106
dc.identifier.urihttps://hdl.handle.net/11480/4325
dc.identifier.volume242
dc.identifier.wosWOS:000323628100098
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofJOURNAL OF POWER SOURCES
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSolid oxide fuel cell
dc.subjectGlass-Ceramics
dc.subjectBinder Burnout
dc.subjectSealing behavior
dc.titleEffect of binder burnout on the sealing performance of glass ceramics for solid oxide fuel cells
dc.typeArticle

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