Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite

Detalhes bibliográficos
Autor(a) principal: Baseri,J.
Data de Publicação: 2018
Outros Autores: Naghizadeh,R., Rezaie,H. R., Golestanifard,F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132018000300431
Resumo: Abstract Spark plasma sintering (SPS) is an advanced process of sintering materials at low temperatures and short time by creating spark plasma at very high temperatures in the small points and short times, by which materials with high sintering temperature can sinter at lower temperatures. In this study, alumina-nickel-cobalt composites were sintered by SPS and RHP (rapid hot press) methods to investigate the effects of electric pulse on their microstructure and mechanical properties. To this end, sample powders containing alumina, nickel-cobalt aluminate spinel, and aluminum were sintered at 1380 °C under 30 MPa pressure for 10 min by SPS and RHP and then investigated. The densities of both samples were about 98% of theoretical density. Also, hardness and fracture toughness of both samples were about 11 GPa and 14 MPa.m0.5, respectively. The bending strengths of the SPS and RHP samples were 380 and 336 MPa, respectively.
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repository_id_str
spelling Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt compositespark plasma sinteringrapid hot pressingalumina-nickel-cobalt compositeAbstract Spark plasma sintering (SPS) is an advanced process of sintering materials at low temperatures and short time by creating spark plasma at very high temperatures in the small points and short times, by which materials with high sintering temperature can sinter at lower temperatures. In this study, alumina-nickel-cobalt composites were sintered by SPS and RHP (rapid hot press) methods to investigate the effects of electric pulse on their microstructure and mechanical properties. To this end, sample powders containing alumina, nickel-cobalt aluminate spinel, and aluminum were sintered at 1380 °C under 30 MPa pressure for 10 min by SPS and RHP and then investigated. The densities of both samples were about 98% of theoretical density. Also, hardness and fracture toughness of both samples were about 11 GPa and 14 MPa.m0.5, respectively. The bending strengths of the SPS and RHP samples were 380 and 336 MPa, respectively.Associação Brasileira de Cerâmica2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132018000300431Cerâmica v.64 n.371 2018reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132018643712375info:eu-repo/semantics/openAccessBaseri,J.Naghizadeh,R.Rezaie,H. R.Golestanifard,F.eng2018-07-19T00:00:00Zoai:scielo:S0366-69132018000300431Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2018-07-19T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
title Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
spellingShingle Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
Baseri,J.
spark plasma sintering
rapid hot pressing
alumina-nickel-cobalt composite
title_short Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
title_full Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
title_fullStr Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
title_full_unstemmed Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
title_sort Spark plasma effect on microstructure and mechanical properties of alumina-nickel-cobalt composite
author Baseri,J.
author_facet Baseri,J.
Naghizadeh,R.
Rezaie,H. R.
Golestanifard,F.
author_role author
author2 Naghizadeh,R.
Rezaie,H. R.
Golestanifard,F.
author2_role author
author
author
dc.contributor.author.fl_str_mv Baseri,J.
Naghizadeh,R.
Rezaie,H. R.
Golestanifard,F.
dc.subject.por.fl_str_mv spark plasma sintering
rapid hot pressing
alumina-nickel-cobalt composite
topic spark plasma sintering
rapid hot pressing
alumina-nickel-cobalt composite
description Abstract Spark plasma sintering (SPS) is an advanced process of sintering materials at low temperatures and short time by creating spark plasma at very high temperatures in the small points and short times, by which materials with high sintering temperature can sinter at lower temperatures. In this study, alumina-nickel-cobalt composites were sintered by SPS and RHP (rapid hot press) methods to investigate the effects of electric pulse on their microstructure and mechanical properties. To this end, sample powders containing alumina, nickel-cobalt aluminate spinel, and aluminum were sintered at 1380 °C under 30 MPa pressure for 10 min by SPS and RHP and then investigated. The densities of both samples were about 98% of theoretical density. Also, hardness and fracture toughness of both samples were about 11 GPa and 14 MPa.m0.5, respectively. The bending strengths of the SPS and RHP samples were 380 and 336 MPa, respectively.
publishDate 2018
dc.date.none.fl_str_mv 2018-09-01
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=S0366-69132018000300431
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132018000300431
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132018643712375
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.64 n.371 2018
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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