Viscous flow flash sintering of porous silica glass

Autores
Prado, Miguel Oscar; Biesuz, Mattia; Frasnelli, Matteo; Benedetto, Franco Emmanuel; Sglavo, Vincenzo M.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
For the first-time compacts of porous glass particles (95 wt% SiO2, 2.3% Na2O, 1.6% Al2O3) exhibiting macro-, meso- and micro-pores were densified by flash sintering, using DC electric field in the range 1000–3000 V cm− 1. The results point out the applicability of this sintering technology to glasses characterized by viscous flow sintering mechanisms. Excluding the anodic region, the specimens resulted well densified using a current limit of 2 mA mm− 2 and a dwelling time of 30 s. The obtained microstructure at the anode and at the cathode side is asymmetric, the former being characterized by the formation of Na-enriched region, the latter by the local formation of large pores (hundreds of microns). The mechanism, which triggers the flash event, appears to be associated to dielectric breakdown.
Fil: Prado, Miguel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Biesuz, Mattia. University of Trento; Italia
Fil: Frasnelli, Matteo. University of Trento; Italia
Fil: Benedetto, Franco Emmanuel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Sglavo, Vincenzo M.. University of Trento; Italia
Materia
Consolidation
Electric Field Induced Softening
Flash Sintering
Powder
Silicate Glass
Sintering
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68718
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68718
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Viscous flow flash sintering of porous silica glassPrado, Miguel OscarBiesuz, MattiaFrasnelli, MatteoBenedetto, Franco EmmanuelSglavo, Vincenzo M.ConsolidationElectric Field Induced SofteningFlash SinteringPowderSilicate GlassSinteringhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2For the first-time compacts of porous glass particles (95 wt% SiO2, 2.3% Na2O, 1.6% Al2O3) exhibiting macro-, meso- and micro-pores were densified by flash sintering, using DC electric field in the range 1000–3000 V cm− 1. The results point out the applicability of this sintering technology to glasses characterized by viscous flow sintering mechanisms. Excluding the anodic region, the specimens resulted well densified using a current limit of 2 mA mm− 2 and a dwelling time of 30 s. The obtained microstructure at the anode and at the cathode side is asymmetric, the former being characterized by the formation of Na-enriched region, the latter by the local formation of large pores (hundreds of microns). The mechanism, which triggers the flash event, appears to be associated to dielectric breakdown.Fil: Prado, Miguel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Biesuz, Mattia. University of Trento; ItaliaFil: Frasnelli, Matteo. University of Trento; ItaliaFil: Benedetto, Franco Emmanuel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Sglavo, Vincenzo M.. University of Trento; ItaliaElsevier Science2017-11-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68718Prado, Miguel Oscar; Biesuz, Mattia; Frasnelli, Matteo; Benedetto, Franco Emmanuel; Sglavo, Vincenzo M.; Viscous flow flash sintering of porous silica glass; Elsevier Science; Journal of Non-crystalline Solids; 476; 2017; 15-11-2017; 60-660022-3093CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2017.09.024info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022309317304659info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:21Zoai:ri.conicet.gov.ar:11336/68718instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:22.143CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Viscous flow flash sintering of porous silica glass
title Viscous flow flash sintering of porous silica glass
spellingShingle Viscous flow flash sintering of porous silica glass
Prado, Miguel Oscar
Consolidation
Electric Field Induced Softening
Flash Sintering
Powder
Silicate Glass
Sintering
title_short Viscous flow flash sintering of porous silica glass
title_full Viscous flow flash sintering of porous silica glass
title_fullStr Viscous flow flash sintering of porous silica glass
title_full_unstemmed Viscous flow flash sintering of porous silica glass
title_sort Viscous flow flash sintering of porous silica glass
dc.creator.none.fl_str_mv Prado, Miguel Oscar
Biesuz, Mattia
Frasnelli, Matteo
Benedetto, Franco Emmanuel
Sglavo, Vincenzo M.
author Prado, Miguel Oscar
author_facet Prado, Miguel Oscar
Biesuz, Mattia
Frasnelli, Matteo
Benedetto, Franco Emmanuel
Sglavo, Vincenzo M.
author_role author
author2 Biesuz, Mattia
Frasnelli, Matteo
Benedetto, Franco Emmanuel
Sglavo, Vincenzo M.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Consolidation
Electric Field Induced Softening
Flash Sintering
Powder
Silicate Glass
Sintering
topic Consolidation
Electric Field Induced Softening
Flash Sintering
Powder
Silicate Glass
Sintering
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv For the first-time compacts of porous glass particles (95 wt% SiO2, 2.3% Na2O, 1.6% Al2O3) exhibiting macro-, meso- and micro-pores were densified by flash sintering, using DC electric field in the range 1000–3000 V cm− 1. The results point out the applicability of this sintering technology to glasses characterized by viscous flow sintering mechanisms. Excluding the anodic region, the specimens resulted well densified using a current limit of 2 mA mm− 2 and a dwelling time of 30 s. The obtained microstructure at the anode and at the cathode side is asymmetric, the former being characterized by the formation of Na-enriched region, the latter by the local formation of large pores (hundreds of microns). The mechanism, which triggers the flash event, appears to be associated to dielectric breakdown.
Fil: Prado, Miguel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Biesuz, Mattia. University of Trento; Italia
Fil: Frasnelli, Matteo. University of Trento; Italia
Fil: Benedetto, Franco Emmanuel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Sglavo, Vincenzo M.. University of Trento; Italia
description For the first-time compacts of porous glass particles (95 wt% SiO2, 2.3% Na2O, 1.6% Al2O3) exhibiting macro-, meso- and micro-pores were densified by flash sintering, using DC electric field in the range 1000–3000 V cm− 1. The results point out the applicability of this sintering technology to glasses characterized by viscous flow sintering mechanisms. Excluding the anodic region, the specimens resulted well densified using a current limit of 2 mA mm− 2 and a dwelling time of 30 s. The obtained microstructure at the anode and at the cathode side is asymmetric, the former being characterized by the formation of Na-enriched region, the latter by the local formation of large pores (hundreds of microns). The mechanism, which triggers the flash event, appears to be associated to dielectric breakdown.
publishDate 2017
dc.date.none.fl_str_mv 2017-11-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68718
Prado, Miguel Oscar; Biesuz, Mattia; Frasnelli, Matteo; Benedetto, Franco Emmanuel; Sglavo, Vincenzo M.; Viscous flow flash sintering of porous silica glass; Elsevier Science; Journal of Non-crystalline Solids; 476; 2017; 15-11-2017; 60-66
0022-3093
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68718
identifier_str_mv Prado, Miguel Oscar; Biesuz, Mattia; Frasnelli, Matteo; Benedetto, Franco Emmanuel; Sglavo, Vincenzo M.; Viscous flow flash sintering of porous silica glass; Elsevier Science; Journal of Non-crystalline Solids; 476; 2017; 15-11-2017; 60-66
0022-3093
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2017.09.024
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022309317304659
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613100911722496
score 13.070432

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