Sintering/crystallization and viscosity of sealing glass-ceramics

[EN] Two glass-ceramics sealants for solid-oxide fuel cells (SOFC) in the system BaO/SrO-MgO-BO-SiO have been analysed according to relevant sealing parameters such as sintering and crystallization of the glass powders and dilatation and viscosity evolution with crystallization of glass-ceramic comp...

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Detalles Bibliográficos
Autores: Rodríguez-López, Sonia, Pascual, M. Jesús
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/269201
Acceso en línea:http://hdl.handle.net/10261/269201
Access Level:acceso abierto
Palabra clave:Sealing
SOFC
Glass-ceramics
Sintering
Crystallization
Thermal expansion
Viscosity
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spelling Sintering/crystallization and viscosity of sealing glass-ceramicsRodríguez-López, SoniaPascual, M. JesúsSealingSOFCGlass-ceramicsSinteringCrystallizationThermal expansionViscosity[EN] Two glass-ceramics sealants for solid-oxide fuel cells (SOFC) in the system BaO/SrO-MgO-BO-SiO have been analysed according to relevant sealing parameters such as sintering and crystallization of the glass powders and dilatation and viscosity evolution with crystallization of glass-ceramic compacts. Special emphasis is given to the crystallization kinetics and mechanism, crystalline phases formed and the role of viscosity in the whole sealing process. The slower crystallization rate of the strontium-containing glass composition results in good joining with the interconnect steel before the glass starts to crystallize and increases its viscosity. This avoids and excessive sealing temperature and offers better compatibility with the start up and working temperature of an SOFC (750–850C).This research was funded by European project FP7-JTI-CP-FCH, Working toward Mass Manufactured, Low Cost, and Robust SOFC stacks (MMLRC = SOFC), nº 278525 and PIE-CSIC 201960E016Molecular Diversity Preservation InternationalEuropean CommissionConsejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/269201reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7325342/http://dx.doi.org/10.3390/cryst11070737Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2692012026-05-22T06:33:51Z
dc.title.none.fl_str_mv Sintering/crystallization and viscosity of sealing glass-ceramics
title Sintering/crystallization and viscosity of sealing glass-ceramics
spellingShingle Sintering/crystallization and viscosity of sealing glass-ceramics
Rodríguez-López, Sonia
Sealing
SOFC
Glass-ceramics
Sintering
Crystallization
Thermal expansion
Viscosity
title_short Sintering/crystallization and viscosity of sealing glass-ceramics
title_full Sintering/crystallization and viscosity of sealing glass-ceramics
title_fullStr Sintering/crystallization and viscosity of sealing glass-ceramics
title_full_unstemmed Sintering/crystallization and viscosity of sealing glass-ceramics
title_sort Sintering/crystallization and viscosity of sealing glass-ceramics
dc.creator.none.fl_str_mv Rodríguez-López, Sonia
Pascual, M. Jesús
author Rodríguez-López, Sonia
author_facet Rodríguez-López, Sonia
Pascual, M. Jesús
author_role author
author2 Pascual, M. Jesús
author2_role author
dc.contributor.none.fl_str_mv European Commission
Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Sealing
SOFC
Glass-ceramics
Sintering
Crystallization
Thermal expansion
Viscosity
topic Sealing
SOFC
Glass-ceramics
Sintering
Crystallization
Thermal expansion
Viscosity
description [EN] Two glass-ceramics sealants for solid-oxide fuel cells (SOFC) in the system BaO/SrO-MgO-BO-SiO have been analysed according to relevant sealing parameters such as sintering and crystallization of the glass powders and dilatation and viscosity evolution with crystallization of glass-ceramic compacts. Special emphasis is given to the crystallization kinetics and mechanism, crystalline phases formed and the role of viscosity in the whole sealing process. The slower crystallization rate of the strontium-containing glass composition results in good joining with the interconnect steel before the glass starts to crystallize and increases its viscosity. This avoids and excessive sealing temperature and offers better compatibility with the start up and working temperature of an SOFC (750–850C).
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/269201
url http://hdl.handle.net/10261/269201
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7325342/
http://dx.doi.org/10.3390/cryst11070737
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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