Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1983-41952020000400015 http://hdl.handle.net/11449/213339 |
Resumo: | The PbO-SrO-B2O3 glass system with the of molar ratio of R (= PbO/B2O3) were prepared by fusion method. The elastic properties have been investigated using longitudinal and transversal ultrasonic wave velocity. Measurements were performed at room temperature and using pulse-echo technique at frequency of 5 MHz. The results indicate that, when increasing R value, the glass network stability decreases. This decrease indicates, of the increase the number of borate structures with non bridging oxygen (NBOs) at the expense of the decrease of borate units with tetrahedral structures. This feature may lead to the more open glass network structures and lower stiffness of the samples studied. |
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Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass systemMedidas ultrassônicas e propriedades elásticas do sistema vítreo PbO-SrO-B2O3vidrométodo de fusãodensidademedidas ultrassônicasglassfusion methoddensityultrasonic measurementsThe PbO-SrO-B2O3 glass system with the of molar ratio of R (= PbO/B2O3) were prepared by fusion method. The elastic properties have been investigated using longitudinal and transversal ultrasonic wave velocity. Measurements were performed at room temperature and using pulse-echo technique at frequency of 5 MHz. The results indicate that, when increasing R value, the glass network stability decreases. This decrease indicates, of the increase the number of borate structures with non bridging oxygen (NBOs) at the expense of the decrease of borate units with tetrahedral structures. This feature may lead to the more open glass network structures and lower stiffness of the samples studied.Vidros do sistema PbO-SrO-B2O3, em função da razão molar R (=PbO/ B2O3), foram preparados usando a técnica de fusão. As propriedades elásticas tem sido investigadas a partir das medições das velocidades longitudinais e transversais das ondas ultrassônicas. As medidas foram realizadas a temperatura ambiente usando a técnica de pulso-eco a 5 MHz. Os resultados indicam que, com o aumento do valor de R, a estabilidade da rede do vidro diminui. A diminuição da estabilidade da rede vítrea indica o aumento do número de estruturas boratos com oxigênios não ligados às expensas da diminuição das unidades boratos com estruturas tetraédricas. Esta característica pode levar à ter no vidro estruturas mais abertas e a ter menor rigidez das amostras estudadas.Instituto Federal GoianoUniversidade Estadual Paulista “Júlio de Mesquita Filho”Universidade Estadual Paulista “Júlio de Mesquita Filho”IBRACON - Instituto Brasileiro do ConcretoInstituto Federal GoianoUniversidade Estadual Paulista (Unesp)Moya, Bianca ReisReis, Idalci Cruvinel DosReynoso, Victor Ciro Solano [UNESP]Barros, Mariana Da SilvaGomes, Kamila Ruthielle Silva2021-07-14T10:53:46Z2021-07-14T10:53:46Z2020-08-24info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article-application/pdfhttp://dx.doi.org/10.1590/S1983-41952020000400015Revista IBRACON de Estruturas e Materiais. IBRACON - Instituto Brasileiro do Concreto, v. 13, n. 4, p. -, 2020.1983-4195http://hdl.handle.net/11449/21333910.1590/S1983-41952020000400015S1983-41952020000400204S1983-41952020000400204.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista IBRACON de Estruturas e Materiaisinfo:eu-repo/semantics/openAccess2024-07-10T14:07:57Zoai:repositorio.unesp.br:11449/213339Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:57:28.473264Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system Medidas ultrassônicas e propriedades elásticas do sistema vítreo PbO-SrO-B2O3 |
title |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system |
spellingShingle |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system Moya, Bianca Reis vidro método de fusão densidade medidas ultrassônicas glass fusion method density ultrasonic measurements |
title_short |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system |
title_full |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system |
title_fullStr |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system |
title_full_unstemmed |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system |
title_sort |
Ultrasonic measurement and elastic properties of the PbO-SrO-B2O3 glass system |
author |
Moya, Bianca Reis |
author_facet |
Moya, Bianca Reis Reis, Idalci Cruvinel Dos Reynoso, Victor Ciro Solano [UNESP] Barros, Mariana Da Silva Gomes, Kamila Ruthielle Silva |
author_role |
author |
author2 |
Reis, Idalci Cruvinel Dos Reynoso, Victor Ciro Solano [UNESP] Barros, Mariana Da Silva Gomes, Kamila Ruthielle Silva |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Instituto Federal Goiano Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Moya, Bianca Reis Reis, Idalci Cruvinel Dos Reynoso, Victor Ciro Solano [UNESP] Barros, Mariana Da Silva Gomes, Kamila Ruthielle Silva |
dc.subject.por.fl_str_mv |
vidro método de fusão densidade medidas ultrassônicas glass fusion method density ultrasonic measurements |
topic |
vidro método de fusão densidade medidas ultrassônicas glass fusion method density ultrasonic measurements |
description |
The PbO-SrO-B2O3 glass system with the of molar ratio of R (= PbO/B2O3) were prepared by fusion method. The elastic properties have been investigated using longitudinal and transversal ultrasonic wave velocity. Measurements were performed at room temperature and using pulse-echo technique at frequency of 5 MHz. The results indicate that, when increasing R value, the glass network stability decreases. This decrease indicates, of the increase the number of borate structures with non bridging oxygen (NBOs) at the expense of the decrease of borate units with tetrahedral structures. This feature may lead to the more open glass network structures and lower stiffness of the samples studied. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-24 2021-07-14T10:53:46Z 2021-07-14T10:53:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1983-41952020000400015 Revista IBRACON de Estruturas e Materiais. IBRACON - Instituto Brasileiro do Concreto, v. 13, n. 4, p. -, 2020. 1983-4195 http://hdl.handle.net/11449/213339 10.1590/S1983-41952020000400015 S1983-41952020000400204 S1983-41952020000400204.pdf |
url |
http://dx.doi.org/10.1590/S1983-41952020000400015 http://hdl.handle.net/11449/213339 |
identifier_str_mv |
Revista IBRACON de Estruturas e Materiais. IBRACON - Instituto Brasileiro do Concreto, v. 13, n. 4, p. -, 2020. 1983-4195 10.1590/S1983-41952020000400015 S1983-41952020000400204 S1983-41952020000400204.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista IBRACON de Estruturas e Materiais |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
- application/pdf |
dc.publisher.none.fl_str_mv |
IBRACON - Instituto Brasileiro do Concreto |
publisher.none.fl_str_mv |
IBRACON - Instituto Brasileiro do Concreto |
dc.source.none.fl_str_mv |
SciELO reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129267961167872 |