Optimum processing parameters to improve sealing performance in 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.issued2015
dc.departmentNiğde ÖHÜ
dc.description.abstractGlass ceramic composites are among the favorable candidates as a sealing material for solid oxide fuel cells (SOFC). In order to obtain a reliable, robust and hermetic sealing, the glass ceramics must chemically bond to both the metallic interconnector and the ceramic electrolyte. A high-bonding strength and good wetting, which strongly depend on the thermal treatment, are always preferred to ensure gas-tight sealing. The thermal treatment involves three stages: binder burnout (stage-I), sintering (stage-II), and cooling (stage-III). This study investigates effects of various parameters on the sealing quality at the sintering stage. The effects of sintering temperature, clamping pressure and sealant thickness are considered. The glass ceramic laminates are produced employing a tape casting method. The sealing quality is evaluated by measuring leakage and final macro-structure of the sealing region. It is suggested that a 900-930 degrees C sintering temperature and 1.5-7.6 N cm(-2) clamping pressure ranges are better for successful sealing. The initial thickness of glass ceramic laminates is also desired to be between 0.25-0.5 mm thickness range for both a cost-effective and reliable sealing. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
dc.identifier.doi10.1016/j.ceramint.2015.04.057
dc.identifier.endpage9842
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue8
dc.identifier.scopus2-s2.0-84930927411
dc.identifier.scopusqualityQ1
dc.identifier.startpage9834
dc.identifier.urihttps://dx.doi.org/10.1016/j.ceramint.2015.04.057
dc.identifier.urihttps://hdl.handle.net/11480/3887
dc.identifier.volume41
dc.identifier.wosWOS:000356549100082
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofCERAMICS INTERNATIONAL
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSolid oxide fuel cell
dc.subjectGlass-ceramic sealant
dc.subjectThermal treatment
dc.subjectWetting behavior
dc.titleOptimum processing parameters to improve sealing performance in solid oxide fuel cells
dc.typeArticle

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