Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing

Detalhes bibliográficos
Autor(a) principal: Rocha,Cláudio V.
Data de Publicação: 2006
Outros Autores: Costa,Célio A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200006
Resumo: This present work evaluates the influence of microstructure on the fracture toughness of two types of silicon nitride. The two microstructural types of silicon nitride were processed using the gas pressure sintering (GPS) and hot pressing (HP) pathways. The fracture toughness was measured using the Single Edge V-Notch Beam (SEVNB) and Chevron Notch Beam (CNB) methods. The results from both methods for the two forms were in close agreement (with a maximum variation of 5.8%); the K Ic of the material processed by HP was 35% higher than that of GPS and the grain length had a direct influence on the fracture toughness.
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spelling Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressingfracture toughnesssilicon nitridegas pressure sinteringhot pressingThis present work evaluates the influence of microstructure on the fracture toughness of two types of silicon nitride. The two microstructural types of silicon nitride were processed using the gas pressure sintering (GPS) and hot pressing (HP) pathways. The fracture toughness was measured using the Single Edge V-Notch Beam (SEVNB) and Chevron Notch Beam (CNB) methods. The results from both methods for the two forms were in close agreement (with a maximum variation of 5.8%); the K Ic of the material processed by HP was 35% higher than that of GPS and the grain length had a direct influence on the fracture toughness.ABM, ABC, ABPol2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200006Materials Research v.9 n.2 2006reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392006000200006info:eu-repo/semantics/openAccessRocha,Cláudio V.Costa,Célio A.eng2006-06-06T00:00:00Zoai:scielo:S1516-14392006000200006Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2006-06-06T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
title Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
spellingShingle Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
Rocha,Cláudio V.
fracture toughness
silicon nitride
gas pressure sintering
hot pressing
title_short Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
title_full Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
title_fullStr Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
title_full_unstemmed Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
title_sort Fracture toughness of Si3N4 processed by gas pressure sintering and hot pressing
author Rocha,Cláudio V.
author_facet Rocha,Cláudio V.
Costa,Célio A.
author_role author
author2 Costa,Célio A.
author2_role author
dc.contributor.author.fl_str_mv Rocha,Cláudio V.
Costa,Célio A.
dc.subject.por.fl_str_mv fracture toughness
silicon nitride
gas pressure sintering
hot pressing
topic fracture toughness
silicon nitride
gas pressure sintering
hot pressing
description This present work evaluates the influence of microstructure on the fracture toughness of two types of silicon nitride. The two microstructural types of silicon nitride were processed using the gas pressure sintering (GPS) and hot pressing (HP) pathways. The fracture toughness was measured using the Single Edge V-Notch Beam (SEVNB) and Chevron Notch Beam (CNB) methods. The results from both methods for the two forms were in close agreement (with a maximum variation of 5.8%); the K Ic of the material processed by HP was 35% higher than that of GPS and the grain length had a direct influence on the fracture toughness.
publishDate 2006
dc.date.none.fl_str_mv 2006-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392006000200006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.9 n.2 2006
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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