Dehydroxilation and Crystallization of Glasses: a DTA Study

Autores
Lago, Diana Carolina; Prado, Miguel Oscar
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Differential thermal analysis (DTA) is a technique frequently used for the study of the crystallization kinetics of glass powders during sintering. The effect of specific surface area on crystallization kinetics has been reported earlier. It has been shown that there is a shift in the DTA crystallization peaks towards lower temperatures for smaller particle size. This paper analyzes how the dehydroxilation endothermic peaks that appear in DTA measurements depend on specific area and on the heating rate. Experiments were done on yttrium aluminosilicate, samarium aluminosilicate and soda-lime silica glasses, slabs and powders. We found that some of them exhibit a dehydroxilation endothermic peak that overlaps at different extent with the crystallization peak. The dehydroxilation peak is not detectedwhen yttriumaluminosilicate glass powder is preheated at melting temperatures, or its surface is previously hydrated. For the yttrium aluminosilicate glass a dehydroxilation apparent activation energy of 255 ± 50 kcal mol−1 was obtained using the Kissinger plot.
Fil: Lago, Diana Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Prado, Miguel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
Materia
Dehydroxilation
Crystallization
Yttrium Aluminosilicate Glass
Differential Thermal Analysis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/9028
Acceder
id CONICETDig_35165983df5b0c50907ad512aad4c72e
oai_identifier_str oai:ri.conicet.gov.ar:11336/9028
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dehydroxilation and Crystallization of Glasses: a DTA StudyLago, Diana CarolinaPrado, Miguel OscarDehydroxilationCrystallizationYttrium Aluminosilicate GlassDifferential Thermal Analysishttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Differential thermal analysis (DTA) is a technique frequently used for the study of the crystallization kinetics of glass powders during sintering. The effect of specific surface area on crystallization kinetics has been reported earlier. It has been shown that there is a shift in the DTA crystallization peaks towards lower temperatures for smaller particle size. This paper analyzes how the dehydroxilation endothermic peaks that appear in DTA measurements depend on specific area and on the heating rate. Experiments were done on yttrium aluminosilicate, samarium aluminosilicate and soda-lime silica glasses, slabs and powders. We found that some of them exhibit a dehydroxilation endothermic peak that overlaps at different extent with the crystallization peak. The dehydroxilation peak is not detectedwhen yttriumaluminosilicate glass powder is preheated at melting temperatures, or its surface is previously hydrated. For the yttrium aluminosilicate glass a dehydroxilation apparent activation energy of 255 ± 50 kcal mol−1 was obtained using the Kissinger plot.Fil: Lago, Diana Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Prado, Miguel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; ArgentinaElsevier Science2013-12info: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/11336/9028Lago, Diana Carolina; Prado, Miguel Oscar; Dehydroxilation and Crystallization of Glasses: a DTA Study; Elsevier Science; Journal Of Non-crystalline Solids; 381; 12-2013; 12-160022-3093enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309313004729info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2013.09.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:03Zoai:ri.conicet.gov.ar:11336/9028instacron: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 09:47:03.786CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dehydroxilation and Crystallization of Glasses: a DTA Study
title Dehydroxilation and Crystallization of Glasses: a DTA Study
spellingShingle Dehydroxilation and Crystallization of Glasses: a DTA Study
Lago, Diana Carolina
Dehydroxilation
Crystallization
Yttrium Aluminosilicate Glass
Differential Thermal Analysis
title_short Dehydroxilation and Crystallization of Glasses: a DTA Study
title_full Dehydroxilation and Crystallization of Glasses: a DTA Study
title_fullStr Dehydroxilation and Crystallization of Glasses: a DTA Study
title_full_unstemmed Dehydroxilation and Crystallization of Glasses: a DTA Study
title_sort Dehydroxilation and Crystallization of Glasses: a DTA Study
dc.creator.none.fl_str_mv Lago, Diana Carolina
Prado, Miguel Oscar
author Lago, Diana Carolina
author_facet Lago, Diana Carolina
Prado, Miguel Oscar
author_role author
author2 Prado, Miguel Oscar
author2_role author
dc.subject.none.fl_str_mv Dehydroxilation
Crystallization
Yttrium Aluminosilicate Glass
Differential Thermal Analysis
topic Dehydroxilation
Crystallization
Yttrium Aluminosilicate Glass
Differential Thermal Analysis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Differential thermal analysis (DTA) is a technique frequently used for the study of the crystallization kinetics of glass powders during sintering. The effect of specific surface area on crystallization kinetics has been reported earlier. It has been shown that there is a shift in the DTA crystallization peaks towards lower temperatures for smaller particle size. This paper analyzes how the dehydroxilation endothermic peaks that appear in DTA measurements depend on specific area and on the heating rate. Experiments were done on yttrium aluminosilicate, samarium aluminosilicate and soda-lime silica glasses, slabs and powders. We found that some of them exhibit a dehydroxilation endothermic peak that overlaps at different extent with the crystallization peak. The dehydroxilation peak is not detectedwhen yttriumaluminosilicate glass powder is preheated at melting temperatures, or its surface is previously hydrated. For the yttrium aluminosilicate glass a dehydroxilation apparent activation energy of 255 ± 50 kcal mol−1 was obtained using the Kissinger plot.
Fil: Lago, Diana Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Prado, Miguel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
description Differential thermal analysis (DTA) is a technique frequently used for the study of the crystallization kinetics of glass powders during sintering. The effect of specific surface area on crystallization kinetics has been reported earlier. It has been shown that there is a shift in the DTA crystallization peaks towards lower temperatures for smaller particle size. This paper analyzes how the dehydroxilation endothermic peaks that appear in DTA measurements depend on specific area and on the heating rate. Experiments were done on yttrium aluminosilicate, samarium aluminosilicate and soda-lime silica glasses, slabs and powders. We found that some of them exhibit a dehydroxilation endothermic peak that overlaps at different extent with the crystallization peak. The dehydroxilation peak is not detectedwhen yttriumaluminosilicate glass powder is preheated at melting temperatures, or its surface is previously hydrated. For the yttrium aluminosilicate glass a dehydroxilation apparent activation energy of 255 ± 50 kcal mol−1 was obtained using the Kissinger plot.
publishDate 2013
dc.date.none.fl_str_mv 2013-12
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/11336/9028
Lago, Diana Carolina; Prado, Miguel Oscar; Dehydroxilation and Crystallization of Glasses: a DTA Study; Elsevier Science; Journal Of Non-crystalline Solids; 381; 12-2013; 12-16
0022-3093
url http://hdl.handle.net/11336/9028
identifier_str_mv Lago, Diana Carolina; Prado, Miguel Oscar; Dehydroxilation and Crystallization of Glasses: a DTA Study; Elsevier Science; Journal Of Non-crystalline Solids; 381; 12-2013; 12-16
0022-3093
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309313004729
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2013.09.008
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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_ 1844613466533396480
score 13.070432

Publicaciones similares