Effect of surface roughness of the metallic interconnects on the bonding strength in solid oxide fuel cells

dc.authoridCELIK, SELAHATTIN/0000-0002-7306-9784
dc.contributor.authorAltan, Tolga
dc.contributor.authorCelik, Selahattin
dc.date.accessioned2024-11-07T13:24:36Z
dc.date.available2024-11-07T13:24:36Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this study, the joint strengths of glass-ceramic sealant placed between two metallic interconnectors (Crofer (R) 22 APU) are experimentally investigated depending on the surface conditions of the metallic interconnector and electrolyte/electrode materials (YSZ and NiO). The surfaces of the interconnectors are sanded with sandpaper having five different grits (60, 120, 240, 320 and 2000 grits). Thus, roughened surfaces are obtained and the adhesion is examined for each case. Profilometer is used to inspect the surface roughness of the samples. The fracture strengths of 24 samples prepared for each case are determined via tensile tests. Similarly, different electrolyte/electrode materials with modified surfaces are sandwiched between two glass ceramic layers and their mechanical performances are also measured. The results reveal that the joining strength tends to increase with the amount of surface roughness. It is also found that NiO adheres better to glass-ceramic material than YSZ. The microstructures of the adhesion interface of some cases are also investigated by a scanning electron microscopy. The images showed that good adhesion is achieved without any delamination or cracks at the interfaces. Chemical formation between the glass-ceramic sealants, interconnects and SOFC components is further investigated by XRD analyses. (c) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2020.03.136
dc.identifier.endpage35129
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue60
dc.identifier.scopus2-s2.0-85082825705
dc.identifier.scopusqualityQ1
dc.identifier.startpage35118
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2020.03.136
dc.identifier.urihttps://hdl.handle.net/11480/14216
dc.identifier.volume45
dc.identifier.wosWOS:000595528300022
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectSolid oxide fuel cell
dc.subjectSurface roughness
dc.subjectGlass-ceramic
dc.subjectBonding performance
dc.subjectTensile tests
dc.titleEffect of surface roughness of the metallic interconnects on the bonding strength in solid oxide fuel cells
dc.typeArticle

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