Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements

The effect of particle size distribution of SiC particulate reinforcements coated with colloidal SiO2 on Young´s modulus of Al/SiCp/MgAl2O4 composites fabricated by reactive infiltration was investigated. Composites were prepared from porous preforms of silica-coated α- SiC powders of 10, 54, 86, an...

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Autores: Montoya-Dávila,M., Pech-Canul,M.I., Escalera-Lozano,R., Pech-Canul,M.A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Brasil
Institución:Matéria (Rio de Janeiro. Online)
Repositorio:Matéria (Rio de Janeiro. Online)
Idioma:inglés
OAI Identifier:oai:scielo:S1517-70762010000200021
Acceso en línea:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200021
Access Level:acceso abierto
Palabra clave:Al/SiCp/MgAl2O4 composites
multimodal distribution
Young's modulus
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spelling Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcementsAl/SiCp/MgAl2O4 compositesmultimodal distributionYoung's modulusThe effect of particle size distribution of SiC particulate reinforcements coated with colloidal SiO2 on Young´s modulus of Al/SiCp/MgAl2O4 composites fabricated by reactive infiltration was investigated. Composites were prepared from porous preforms of silica-coated α- SiC powders of 10, 54, 86, and 146 μm, 0.6 volume fraction of reinforcements and particle size distribution from monomodal to cuatrimodal. Infiltration tests with the alloy Al-13.3Mg-1.8Si (wt. %) were carried out in Ar→N2 atmosphere at 1100ºC for 60 min. The composites were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In addition to density and residual porosity measurements, Young´s modulus was evaluated by ultrasonic techniques. Results show that with increase in particles size distribution, residual porosity decreases and density and Young´s modulus of the composites are improved, the latter from 185.39 ±3.6 to 201.93 ±2.3 GPa. This is attributed to the increased metal-ceramic interfaces and to an enhanced matrix-reinforcement load transmission.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200021Matéria (Rio de Janeiro) v.15 n.2 2010reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/S1517-70762010000200021info:eu-repo/semantics/openAccessengMontoya-Dávila,M.Pech-Canul,M.I.Escalera-Lozano,R.Pech-Canul,M.A.2010-08-27T00:00:00Zoai:scielo:S1517-70762010000200021Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2010-08-27T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
title Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
spellingShingle Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
Montoya-Dávila,M.
Al/SiCp/MgAl2O4 composites
multimodal distribution
Young's modulus
title_short Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
title_full Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
title_fullStr Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
title_full_unstemmed Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
title_sort Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
dc.creator.none.fl_str_mv Montoya-Dávila,M.
Pech-Canul,M.I.
Escalera-Lozano,R.
Pech-Canul,M.A.
author Montoya-Dávila,M.
author_facet Montoya-Dávila,M.
Pech-Canul,M.I.
Escalera-Lozano,R.
Pech-Canul,M.A.
author_role author
author2 Pech-Canul,M.I.
Escalera-Lozano,R.
Pech-Canul,M.A.
author2_role author
author
author
dc.subject.por.fl_str_mv Al/SiCp/MgAl2O4 composites
multimodal distribution
Young's modulus
topic Al/SiCp/MgAl2O4 composites
multimodal distribution
Young's modulus
description The effect of particle size distribution of SiC particulate reinforcements coated with colloidal SiO2 on Young´s modulus of Al/SiCp/MgAl2O4 composites fabricated by reactive infiltration was investigated. Composites were prepared from porous preforms of silica-coated α- SiC powders of 10, 54, 86, and 146 μm, 0.6 volume fraction of reinforcements and particle size distribution from monomodal to cuatrimodal. Infiltration tests with the alloy Al-13.3Mg-1.8Si (wt. %) were carried out in Ar→N2 atmosphere at 1100ºC for 60 min. The composites were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). In addition to density and residual porosity measurements, Young´s modulus was evaluated by ultrasonic techniques. Results show that with increase in particles size distribution, residual porosity decreases and density and Young´s modulus of the composites are improved, the latter from 185.39 ±3.6 to 201.93 ±2.3 GPa. This is attributed to the increased metal-ceramic interfaces and to an enhanced matrix-reinforcement load transmission.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
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=S1517-70762010000200021
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200021
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1517-70762010000200021
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 Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.15 n.2 2010
reponame:Matéria (Rio de Janeiro. Online)
instname:Matéria (Rio de Janeiro. Online)
instacron:RLAM
instname_str Matéria (Rio de Janeiro. Online)
instacron_str RLAM
institution RLAM
reponame_str Matéria (Rio de Janeiro. Online)
collection Matéria (Rio de Janeiro. Online)
repository.name.fl_str_mv Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)
repository.mail.fl_str_mv ||materia@labh2.coppe.ufrj.br
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score 15,300719

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