Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Tipo de documento: | Tese |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/17150 |
Resumo: | Glass structures are determined by not only composition, pressure, and temperature but also by the pressure and thermal histories in which the glass was submitted. In this thesis, a systematic study of these variables was performed in undoped and cobalt-doped lead metasilicate (PbSiO3) glasses and mainly probed by Raman spectroscopy. High pressure was applied in a Diamond Anvil Cell (DAC), and the samples were studied ex-situ and in-situ. Ex-situ Raman investigation appoints for an unusual increase in the non-bridging oxygens (NBO) population, at the expense of the bridging oxygens (BO) population, leading to slight depolymerization of the densified metasilicate structure. In-situ investigation of this glass under pressure suggests the densification mechanisms occurring via the formation of an intermediary more polymerized state. Such modifications are accompanied by a change in the lead environment with the formation of highly coordinated PbOn polyhedra. High-temperature investigations were performed in isothermal and non-isothermal runs, providing evidence that the phase evolution from the glass to the stable alamosite is intermediated by two metastable crystalline phases, with a temperature-dependent crystallization path. For the same composition submitted to extremal conditions, the controlling of these structures may offer vast possibilities to tailor the glass-ceramic optical properties. |
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Pena, Rafaella BartzPizani, Paulo Sergiohttp://lattes.cnpq.br/1038437165007849http://lattes.cnpq.br/0504471791023003342155ce-d506-43f2-b74e-4f71896ff24a2022-12-13T11:36:57Z2022-12-13T11:36:57Z2022-09-21PENA, Rafaella Bartz. Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures. 2022. Tese (Doutorado em Física) – Universidade Federal de São Carlos, São Carlos, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/17150.https://repositorio.ufscar.br/handle/ufscar/17150Glass structures are determined by not only composition, pressure, and temperature but also by the pressure and thermal histories in which the glass was submitted. In this thesis, a systematic study of these variables was performed in undoped and cobalt-doped lead metasilicate (PbSiO3) glasses and mainly probed by Raman spectroscopy. High pressure was applied in a Diamond Anvil Cell (DAC), and the samples were studied ex-situ and in-situ. Ex-situ Raman investigation appoints for an unusual increase in the non-bridging oxygens (NBO) population, at the expense of the bridging oxygens (BO) population, leading to slight depolymerization of the densified metasilicate structure. In-situ investigation of this glass under pressure suggests the densification mechanisms occurring via the formation of an intermediary more polymerized state. Such modifications are accompanied by a change in the lead environment with the formation of highly coordinated PbOn polyhedra. High-temperature investigations were performed in isothermal and non-isothermal runs, providing evidence that the phase evolution from the glass to the stable alamosite is intermediated by two metastable crystalline phases, with a temperature-dependent crystallization path. For the same composition submitted to extremal conditions, the controlling of these structures may offer vast possibilities to tailor the glass-ceramic optical properties.Estruturas vítreas são determinadas não apenas pela composição, pressão e temperatura, mas também pelas histórias térmicas e de pressão em que o vidro foi submetido. Nesta tese, um estudo sistemático dessas variáveis foi realizado em vidros de metassilicato de chumbo (PbSiO3) não dopado e dopados com cobalto, e analisado principalmente por espectroscopia Raman. Altas pressões foram aplicadas utilizando uma célula diamante do tipo bigorna, e as amostras foram estudadas ex-situ e in-situ. Os resultados de espectroscopia Raman ex-situ apontam para um aumento incomum na população de oxigênios não ponteantes (NBO), às custas da população de oxigênios ponteantes (BO), levando a uma sutil despolimerização da estrutura densificada do metasilicato. A investigação in situ deste vidro sob pressão sugere que os mecanismos de densificação ocorrem através da formação de um estado intermediário mais polimerizado. Tais modificações são acompanhadas por uma mudança no ambiente do íon de chumbo, com a formação de poliedros PbOn altamente coordenados. Investigações a altas temperaturas foram realizadas com aquecimentos isotérmicos e não isotérmicos, fornecendo evidências de que a evolução estrutural do vidro para a alamosita é intermediada por duas fases cristalinas metaestáveis, com rotas de cristalização dependentes da temperatura. Para uma mesma composição química submetida a condições extremas, o controle da formação dessas estruturas pode oferecer amplas possibilidades de adequar as propriedades ópticas das vitrocerâmicas.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)2017/11868-22019/11446-6engUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Física - PPGFUFSCarAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessVidro Metasilicato de ChumboAltas pressõesCristalização totalEspectroscopia RamanFotoluminescênciaLead Metasilicate GlassHigh-PressureOverall CrystallizationRaman SpectroscopyPhotoluminescenceCIENCIAS EXATAS E DA TERRA::FISICACIENCIAS EXATAS E DA TERRA::FISICA::FISICA DA MATERIA CONDENSADA::PROP.OTICAS E ESPECTROSC.DA MAT.CONDENS;OUTRAS INTER.DA MAT.COM RAD.E PART.Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressuresCorrelação entre estrutura e propriedades ópticas de vitrocerâmicas de metasilicato de chumbo sob altas pressões hidrostáticasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis600600013c038d-d7b3-4a5d-be4a-fd16c1efb7efreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALRBPena_Tese_DO_corrigida.pdfRBPena_Tese_DO_corrigida.pdfTeseapplication/pdf5346718https://repositorio.ufscar.br/bitstream/ufscar/17150/3/RBPena_Tese_DO_corrigida.pdf057331e6062cb5adc29f223e7da0d602MD53RBPena_carta repositorio.pdfRBPena_carta repositorio.pdfCarta Comprovanteapplication/pdf263600https://repositorio.ufscar.br/bitstream/ufscar/17150/6/RBPena_carta%20repositorio.pdf324de6342996edb8ef135388a983640aMD56CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufscar.br/bitstream/ufscar/17150/7/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD57TEXTRBPena_Tese_DO_corrigida.pdf.txtRBPena_Tese_DO_corrigida.pdf.txtExtracted texttext/plain255627https://repositorio.ufscar.br/bitstream/ufscar/17150/8/RBPena_Tese_DO_corrigida.pdf.txt7f8e7f6384ffe6c9a0e6b90257ddb51cMD58RBPena_carta repositorio.pdf.txtRBPena_carta repositorio.pdf.txtExtracted texttext/plain1412https://repositorio.ufscar.br/bitstream/ufscar/17150/10/RBPena_carta%20repositorio.pdf.txt199ba5d865bfe73e5a438b721bfc2778MD510THUMBNAILRBPena_Tese_DO_corrigida.pdf.jpgRBPena_Tese_DO_corrigida.pdf.jpgIM Thumbnailimage/jpeg7649https://repositorio.ufscar.br/bitstream/ufscar/17150/9/RBPena_Tese_DO_corrigida.pdf.jpg36e5d6e01a3e99bfabc1530032ac333dMD59RBPena_carta repositorio.pdf.jpgRBPena_carta repositorio.pdf.jpgIM Thumbnailimage/jpeg6320https://repositorio.ufscar.br/bitstream/ufscar/17150/11/RBPena_carta%20repositorio.pdf.jpg64f82289bffd743d1d1b9710db59e4b6MD511ufscar/171502023-09-18 18:32:32.618oai:repositorio.ufscar.br:ufscar/17150Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:32:32Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.eng.fl_str_mv |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
dc.title.alternative.por.fl_str_mv |
Correlação entre estrutura e propriedades ópticas de vitrocerâmicas de metasilicato de chumbo sob altas pressões hidrostáticas |
title |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
spellingShingle |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures Pena, Rafaella Bartz Vidro Metasilicato de Chumbo Altas pressões Cristalização total Espectroscopia Raman Fotoluminescência Lead Metasilicate Glass High-Pressure Overall Crystallization Raman Spectroscopy Photoluminescence CIENCIAS EXATAS E DA TERRA::FISICA CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DA MATERIA CONDENSADA::PROP.OTICAS E ESPECTROSC.DA MAT.CONDENS;OUTRAS INTER.DA MAT.COM RAD.E PART. |
title_short |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
title_full |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
title_fullStr |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
title_full_unstemmed |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
title_sort |
Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures |
author |
Pena, Rafaella Bartz |
author_facet |
Pena, Rafaella Bartz |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/0504471791023003 |
dc.contributor.author.fl_str_mv |
Pena, Rafaella Bartz |
dc.contributor.advisor1.fl_str_mv |
Pizani, Paulo Sergio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/1038437165007849 |
dc.contributor.authorID.fl_str_mv |
342155ce-d506-43f2-b74e-4f71896ff24a |
contributor_str_mv |
Pizani, Paulo Sergio |
dc.subject.por.fl_str_mv |
Vidro Metasilicato de Chumbo Altas pressões Cristalização total Espectroscopia Raman Fotoluminescência |
topic |
Vidro Metasilicato de Chumbo Altas pressões Cristalização total Espectroscopia Raman Fotoluminescência Lead Metasilicate Glass High-Pressure Overall Crystallization Raman Spectroscopy Photoluminescence CIENCIAS EXATAS E DA TERRA::FISICA CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DA MATERIA CONDENSADA::PROP.OTICAS E ESPECTROSC.DA MAT.CONDENS;OUTRAS INTER.DA MAT.COM RAD.E PART. |
dc.subject.eng.fl_str_mv |
Lead Metasilicate Glass High-Pressure Overall Crystallization Raman Spectroscopy Photoluminescence |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::FISICA CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DA MATERIA CONDENSADA::PROP.OTICAS E ESPECTROSC.DA MAT.CONDENS;OUTRAS INTER.DA MAT.COM RAD.E PART. |
description |
Glass structures are determined by not only composition, pressure, and temperature but also by the pressure and thermal histories in which the glass was submitted. In this thesis, a systematic study of these variables was performed in undoped and cobalt-doped lead metasilicate (PbSiO3) glasses and mainly probed by Raman spectroscopy. High pressure was applied in a Diamond Anvil Cell (DAC), and the samples were studied ex-situ and in-situ. Ex-situ Raman investigation appoints for an unusual increase in the non-bridging oxygens (NBO) population, at the expense of the bridging oxygens (BO) population, leading to slight depolymerization of the densified metasilicate structure. In-situ investigation of this glass under pressure suggests the densification mechanisms occurring via the formation of an intermediary more polymerized state. Such modifications are accompanied by a change in the lead environment with the formation of highly coordinated PbOn polyhedra. High-temperature investigations were performed in isothermal and non-isothermal runs, providing evidence that the phase evolution from the glass to the stable alamosite is intermediated by two metastable crystalline phases, with a temperature-dependent crystallization path. For the same composition submitted to extremal conditions, the controlling of these structures may offer vast possibilities to tailor the glass-ceramic optical properties. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-12-13T11:36:57Z |
dc.date.available.fl_str_mv |
2022-12-13T11:36:57Z |
dc.date.issued.fl_str_mv |
2022-09-21 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PENA, Rafaella Bartz. Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures. 2022. Tese (Doutorado em Física) – Universidade Federal de São Carlos, São Carlos, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/17150. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/17150 |
identifier_str_mv |
PENA, Rafaella Bartz. Correlation between structure and optical properties of lead metasilicate glass-ceramic under high hydrostatic pressures. 2022. Tese (Doutorado em Física) – Universidade Federal de São Carlos, São Carlos, 2022. Disponível em: https://repositorio.ufscar.br/handle/ufscar/17150. |
url |
https://repositorio.ufscar.br/handle/ufscar/17150 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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600 600 |
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013c038d-d7b3-4a5d-be4a-fd16c1efb7ef |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
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Programa de Pós-Graduação em Física - PPGF |
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UFSCar |
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Universidade Federal de São Carlos Câmpus São Carlos |
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