Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
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=S1516-14392012000600010 |
Resumo: | The synthesis of alumina (Al2O3)-composites having different amount of very fine titanium and titanium carbide reinforcement-particles has been explored. Two experimental steps have been set for the synthesis; the first step consisted of the pressureless-sintering of Al2O3-titanium powders which were thoroughly mixed under high energy ball-milling and through the second step it was induced the formation of titanium carbide during different times at 500 ºC by the cementation packing process. SEM and EDS analysis of the microstructures obtained in both sintered and cemented bodies were performed in order to know the effect of the activated carbon used as cementing agent on the titanium for each studied composite. It was observed that a titanium carbide layer growth from the surface into the bulk and reaches different depth as the titanium content in the composites increases. On the other hand, the use of ductile titanium notably enhanced density level and fracture toughness of the composites. |
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Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersionsalumina-compositesmetallic-renforcementscementation packing processThe synthesis of alumina (Al2O3)-composites having different amount of very fine titanium and titanium carbide reinforcement-particles has been explored. Two experimental steps have been set for the synthesis; the first step consisted of the pressureless-sintering of Al2O3-titanium powders which were thoroughly mixed under high energy ball-milling and through the second step it was induced the formation of titanium carbide during different times at 500 ºC by the cementation packing process. SEM and EDS analysis of the microstructures obtained in both sintered and cemented bodies were performed in order to know the effect of the activated carbon used as cementing agent on the titanium for each studied composite. It was observed that a titanium carbide layer growth from the surface into the bulk and reaches different depth as the titanium content in the composites increases. On the other hand, the use of ductile titanium notably enhanced density level and fracture toughness of the composites.ABM, ABC, ABPol2012-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000600010Materials Research v.15 n.6 2012reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392012005000110info:eu-repo/semantics/openAccessRefugio-García,ElizabethHernández-Silva,DavidTerrés-Rojas,EduardoRodríguez-García,José AmparoRocha-Rangel,Enriqueeng2012-11-20T00:00:00Zoai:scielo:S1516-14392012000600010Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2012-11-20T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
title |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
spellingShingle |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions Refugio-García,Elizabeth alumina-composites metallic-renforcements cementation packing process |
title_short |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
title_full |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
title_fullStr |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
title_full_unstemmed |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
title_sort |
Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions |
author |
Refugio-García,Elizabeth |
author_facet |
Refugio-García,Elizabeth Hernández-Silva,David Terrés-Rojas,Eduardo Rodríguez-García,José Amparo Rocha-Rangel,Enrique |
author_role |
author |
author2 |
Hernández-Silva,David Terrés-Rojas,Eduardo Rodríguez-García,José Amparo Rocha-Rangel,Enrique |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Refugio-García,Elizabeth Hernández-Silva,David Terrés-Rojas,Eduardo Rodríguez-García,José Amparo Rocha-Rangel,Enrique |
dc.subject.por.fl_str_mv |
alumina-composites metallic-renforcements cementation packing process |
topic |
alumina-composites metallic-renforcements cementation packing process |
description |
The synthesis of alumina (Al2O3)-composites having different amount of very fine titanium and titanium carbide reinforcement-particles has been explored. Two experimental steps have been set for the synthesis; the first step consisted of the pressureless-sintering of Al2O3-titanium powders which were thoroughly mixed under high energy ball-milling and through the second step it was induced the formation of titanium carbide during different times at 500 ºC by the cementation packing process. SEM and EDS analysis of the microstructures obtained in both sintered and cemented bodies were performed in order to know the effect of the activated carbon used as cementing agent on the titanium for each studied composite. It was observed that a titanium carbide layer growth from the surface into the bulk and reaches different depth as the titanium content in the composites increases. On the other hand, the use of ductile titanium notably enhanced density level and fracture toughness of the composites. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-01 |
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=S1516-14392012000600010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000600010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392012005000110 |
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.15 n.6 2012 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 |
_version_ |
1754212661643444224 |