Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing

Detalhes bibliográficos
Autor(a) principal: Paulo Dornellas, Marcos
Data de Publicação: 2022
Outros Autores: Coelho da Silva, Vinicio, da Silva Abreu, Getúlio, Perez, Geronimo, Filgueira, Marcello, Garcia Diniz , Marília
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Vetor (Online)
Texto Completo: https://periodicos.furg.br/vetor/article/view/13687
Resumo: Constant research efforts have been conducted in materials selection to combine and improve the properties of interest, service life and production cost. In this context, boron carbide (B4C) stands out for having a high mechanical performance, being the material that has the fourth highest hardness (> 29.1GPa) among ceramic materials. However, porosity is seen as a limiting factor for the high performance of this group of materials, to which boron carbide is found. Porosity control is usually conducted through imprecise techniques, and indirect or costly measures for quantification. This work quantified the porosity of boron-niobium carbide (B4C-Nb) composites obtained from high pressure - high temperature (HPHT - high pressure high temperature) sintering process through analysis and digital image processing (PDI) by microscopy optical (MO) after surface preparation with controlled and automated parameters. The results obtained were compared with those obtained using the mercury intrusion porosimetry method. The semi-quantitative chemical characterization of the composites was performed using the Energy Dispersive Spectroscopy (EDS) technique.
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spelling Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and ProcessingMedida de Porosidade em Compósitos B4C-Nb por Meio de Análise e Processamento Digital de Imagem Advanced ceramicsBoron carbide with niobiumPorosityDigital image processingCerâmicos avançadosCarbeto de boro com nióbioPorosidadeProcessamento digital de imagemConstant research efforts have been conducted in materials selection to combine and improve the properties of interest, service life and production cost. In this context, boron carbide (B4C) stands out for having a high mechanical performance, being the material that has the fourth highest hardness (> 29.1GPa) among ceramic materials. However, porosity is seen as a limiting factor for the high performance of this group of materials, to which boron carbide is found. Porosity control is usually conducted through imprecise techniques, and indirect or costly measures for quantification. This work quantified the porosity of boron-niobium carbide (B4C-Nb) composites obtained from high pressure - high temperature (HPHT - high pressure high temperature) sintering process through analysis and digital image processing (PDI) by microscopy optical (MO) after surface preparation with controlled and automated parameters. The results obtained were compared with those obtained using the mercury intrusion porosimetry method. The semi-quantitative chemical characterization of the composites was performed using the Energy Dispersive Spectroscopy (EDS) technique.Esforços constantes de pesquisa têm sido conduzidos na seleção de materiais com o intuito de combinar e aprimorar as propriedades de interesse, o tempo de vida útil e o custo de produção. Nesse contexto, o carbeto de boro (B4C) se destaca por possuir um elevado desempenho mecânico, sendo o material que possui a quarta maior dureza (>29,1GPa) entre os materiais cerâmicos. Entretanto, a porosidade é vista como fator limitador do alto desempenho desse grupo de materiais, ao qual o B4C se encontra. O controle da porosidade é usualmente realizado por meio de técnicas imprecisas, de medidas indiretas ou de alto custo para a sua quantificação. Este trabalho objetivou quantificar a porosidade de compósitos de carbeto de boro-nióbio (B4C-Nb) obtidos por processo de sinterização em alta pressão – alta temperatura (HPHT- high pressure high temperature) através de análise e processamento digital de imagens (PDI) obtidas por microscopia ótica (MO) após preparação da superfície com parâmetros controlados e automatizados. Os resultados obtidos por PDI foram comparados com valores de densidade relativa obtidos por método de porosimetria por intrusão de mercúrio. Os compósitos foram observados por microscopia eletrônica de varredura (MEV) e submetidos a análise química semi-quantitativa por Energy Dispersive Spectroscopy (EDS) que confirmou os poros observados por MO.Universidade Federal do Rio Grande2022-07-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.furg.br/vetor/article/view/1368710.14295/vetor.v32i1.13687VETOR - Journal of Exact Sciences and Engineering; Vol. 32 No. 1 (2022); 62-71VETOR - Revista de Ciências Exatas e Engenharias; v. 32 n. 1 (2022); 62-712358-34520102-7352reponame:Vetor (Online)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGenghttps://periodicos.furg.br/vetor/article/view/13687/9611Copyright (c) 2022 VETOR - Revista de Ciências Exatas e Engenhariasinfo:eu-repo/semantics/openAccessPaulo Dornellas, MarcosCoelho da Silva, Vinicio da Silva Abreu, Getúlio Perez, Geronimo Filgueira, Marcello Garcia Diniz , Marília 2022-07-15T17:35:53Zoai:periodicos.furg.br:article/13687Revistahttps://periodicos.furg.br/vetorPUBhttps://periodicos.furg.br/vetor/oaigmplatt@furg.br2358-34520102-7352opendoar:2022-07-15T17:35:53Vetor (Online) - Universidade Federal do Rio Grande (FURG)false
dc.title.none.fl_str_mv Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
Medida de Porosidade em Compósitos B4C-Nb por Meio de Análise e Processamento Digital de Imagem
title Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
spellingShingle Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
Paulo Dornellas, Marcos
Advanced ceramics
Boron carbide with niobium
Porosity
Digital image processing
Cerâmicos avançados
Carbeto de boro com nióbio
Porosidade
Processamento digital de imagem
title_short Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
title_full Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
title_fullStr Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
title_full_unstemmed Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
title_sort Porosity Measurement in B4C-Nb Composite Through Digital Image Analysis and Processing
author Paulo Dornellas, Marcos
author_facet Paulo Dornellas, Marcos
Coelho da Silva, Vinicio
da Silva Abreu, Getúlio
Perez, Geronimo
Filgueira, Marcello
Garcia Diniz , Marília
author_role author
author2 Coelho da Silva, Vinicio
da Silva Abreu, Getúlio
Perez, Geronimo
Filgueira, Marcello
Garcia Diniz , Marília
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Paulo Dornellas, Marcos
Coelho da Silva, Vinicio
da Silva Abreu, Getúlio
Perez, Geronimo
Filgueira, Marcello
Garcia Diniz , Marília
dc.subject.por.fl_str_mv Advanced ceramics
Boron carbide with niobium
Porosity
Digital image processing
Cerâmicos avançados
Carbeto de boro com nióbio
Porosidade
Processamento digital de imagem
topic Advanced ceramics
Boron carbide with niobium
Porosity
Digital image processing
Cerâmicos avançados
Carbeto de boro com nióbio
Porosidade
Processamento digital de imagem
description Constant research efforts have been conducted in materials selection to combine and improve the properties of interest, service life and production cost. In this context, boron carbide (B4C) stands out for having a high mechanical performance, being the material that has the fourth highest hardness (> 29.1GPa) among ceramic materials. However, porosity is seen as a limiting factor for the high performance of this group of materials, to which boron carbide is found. Porosity control is usually conducted through imprecise techniques, and indirect or costly measures for quantification. This work quantified the porosity of boron-niobium carbide (B4C-Nb) composites obtained from high pressure - high temperature (HPHT - high pressure high temperature) sintering process through analysis and digital image processing (PDI) by microscopy optical (MO) after surface preparation with controlled and automated parameters. The results obtained were compared with those obtained using the mercury intrusion porosimetry method. The semi-quantitative chemical characterization of the composites was performed using the Energy Dispersive Spectroscopy (EDS) technique.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-15
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.furg.br/vetor/article/view/13687
10.14295/vetor.v32i1.13687
url https://periodicos.furg.br/vetor/article/view/13687
identifier_str_mv 10.14295/vetor.v32i1.13687
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.furg.br/vetor/article/view/13687/9611
dc.rights.driver.fl_str_mv Copyright (c) 2022 VETOR - Revista de Ciências Exatas e Engenharias
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 VETOR - Revista de Ciências Exatas e Engenharias
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio Grande
publisher.none.fl_str_mv Universidade Federal do Rio Grande
dc.source.none.fl_str_mv VETOR - Journal of Exact Sciences and Engineering; Vol. 32 No. 1 (2022); 62-71
VETOR - Revista de Ciências Exatas e Engenharias; v. 32 n. 1 (2022); 62-71
2358-3452
0102-7352
reponame:Vetor (Online)
instname:Universidade Federal do Rio Grande (FURG)
instacron:FURG
instname_str Universidade Federal do Rio Grande (FURG)
instacron_str FURG
institution FURG
reponame_str Vetor (Online)
collection Vetor (Online)
repository.name.fl_str_mv Vetor (Online) - Universidade Federal do Rio Grande (FURG)
repository.mail.fl_str_mv gmplatt@furg.br
_version_ 1797041760318259200

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