Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor

Detalhes bibliográficos
Autor(a) principal: Pavanati,Henrique Cezar
Data de Publicação: 2007
Outros Autores: Maliska,Ana Maria, Klein,Aloisio Nelmo, Muzart,Joel Louis René
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=S1516-14392007000100019
Resumo: Samples of unalloyed iron were sintered in the presence of an abnormal glow discharge using a confined anode-cathode configuration. The samples were placed on a holder acting as the discharge anode inside an AISI 1020 steel hollow cathode. Heating of the outer cathode was obtained by the bombardment of ions and energetic neutral particles. As a consequence of the confined geometry, the sample was efficiently heated mainly by radiation from the cathode. In order to evaluate the results of the sintering process by plasma, samples of unalloyed iron were also sintered in a resistive furnace using the same thermal cycle. The porosity, dimension and morphology of the pores were characterized by means of four basic parameters: area fraction, mean diameter, shape factor and elongation factor. The results show that the shape factor depends on the pore size, a characteristic that was not observed for elongation factor. For samples sintered in plasma reactor or conventional furnace, no significant difference in the porosity or in the pores morphology was observed.
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spelling Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactorpowder metallurgyplasma sinteringfurnace sinteringporositypores morphologySamples of unalloyed iron were sintered in the presence of an abnormal glow discharge using a confined anode-cathode configuration. The samples were placed on a holder acting as the discharge anode inside an AISI 1020 steel hollow cathode. Heating of the outer cathode was obtained by the bombardment of ions and energetic neutral particles. As a consequence of the confined geometry, the sample was efficiently heated mainly by radiation from the cathode. In order to evaluate the results of the sintering process by plasma, samples of unalloyed iron were also sintered in a resistive furnace using the same thermal cycle. The porosity, dimension and morphology of the pores were characterized by means of four basic parameters: area fraction, mean diameter, shape factor and elongation factor. The results show that the shape factor depends on the pore size, a characteristic that was not observed for elongation factor. For samples sintered in plasma reactor or conventional furnace, no significant difference in the porosity or in the pores morphology was observed.ABM, ABC, ABPol2007-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100019Materials Research v.10 n.1 2007reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392007000100019info:eu-repo/semantics/openAccessPavanati,Henrique CezarMaliska,Ana MariaKlein,Aloisio NelmoMuzart,Joel Louis Renéeng2007-05-03T00:00:00Zoai:scielo:S1516-14392007000100019Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2007-05-03T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
title Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
spellingShingle Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
Pavanati,Henrique Cezar
powder metallurgy
plasma sintering
furnace sintering
porosity
pores morphology
title_short Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
title_full Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
title_fullStr Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
title_full_unstemmed Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
title_sort Comparative study of porosity and pores morphology of unalloyed iron sintered in furnace and plasma reactor
author Pavanati,Henrique Cezar
author_facet Pavanati,Henrique Cezar
Maliska,Ana Maria
Klein,Aloisio Nelmo
Muzart,Joel Louis René
author_role author
author2 Maliska,Ana Maria
Klein,Aloisio Nelmo
Muzart,Joel Louis René
author2_role author
author
author
dc.contributor.author.fl_str_mv Pavanati,Henrique Cezar
Maliska,Ana Maria
Klein,Aloisio Nelmo
Muzart,Joel Louis René
dc.subject.por.fl_str_mv powder metallurgy
plasma sintering
furnace sintering
porosity
pores morphology
topic powder metallurgy
plasma sintering
furnace sintering
porosity
pores morphology
description Samples of unalloyed iron were sintered in the presence of an abnormal glow discharge using a confined anode-cathode configuration. The samples were placed on a holder acting as the discharge anode inside an AISI 1020 steel hollow cathode. Heating of the outer cathode was obtained by the bombardment of ions and energetic neutral particles. As a consequence of the confined geometry, the sample was efficiently heated mainly by radiation from the cathode. In order to evaluate the results of the sintering process by plasma, samples of unalloyed iron were also sintered in a resistive furnace using the same thermal cycle. The porosity, dimension and morphology of the pores were characterized by means of four basic parameters: area fraction, mean diameter, shape factor and elongation factor. The results show that the shape factor depends on the pore size, a characteristic that was not observed for elongation factor. For samples sintered in plasma reactor or conventional furnace, no significant difference in the porosity or in the pores morphology was observed.
publishDate 2007
dc.date.none.fl_str_mv 2007-03-01
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=S1516-14392007000100019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392007000100019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392007000100019
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.10 n.1 2007
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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