Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering

Detalhes bibliográficos
Autor(a) principal: Reis de Oliveira Caltabiano, Pietro Carelli [UNESP]
Data de Publicação: 2012
Outros Autores: de Souza, Marisa Aparecida [UNESP], Costa Marques, Rodrigo Fernando, Nogueira Campos, Maria Gabriela, de Oliveira Hein, Luis Rogerio [UNESP], Ramos, Alfeu Saraiva [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.1193
http://hdl.handle.net/11449/9401
Resumo: The present work reports on the preparation of Al2O3-TiO2 ceramics by high-energy ball milling and sintering, varying the molar fraction in 1:1 and 3:1. The powder mixtures were processed in a planetary Fritsch P-5 ball mill using silicon nitride balls (10 mm diameter) and vials (225 mL), rotary speed of 250 rpm and a ball-to-powder weight ratio of 5:1. Samples were collected into the vial after different milling times. The milled powders were uniaxially compacted and sintered at 1300 and 1500 degrees C for 4h. The milled and sintered materials were characterized by X-ray diffraction and electron scanning microscopy (SEM). Results indicated that the intensity of Al2O3 and TiO2 peaks were reduced for longer milling times, suggesting that nanosized particles can be achieved. The densification of Al2O3-TiO2 ceramics was higher than 98% over the relative density in samples sintered at 1500 degrees C for 4h, which presented the formation of Al2TiO5.
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spelling Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and SinteringAl2O3-TiO2high-energy ball millingsinteringbiomaterialsThe present work reports on the preparation of Al2O3-TiO2 ceramics by high-energy ball milling and sintering, varying the molar fraction in 1:1 and 3:1. The powder mixtures were processed in a planetary Fritsch P-5 ball mill using silicon nitride balls (10 mm diameter) and vials (225 mL), rotary speed of 250 rpm and a ball-to-powder weight ratio of 5:1. Samples were collected into the vial after different milling times. The milled powders were uniaxially compacted and sintered at 1300 and 1500 degrees C for 4h. The milled and sintered materials were characterized by X-ray diffraction and electron scanning microscopy (SEM). Results indicated that the intensity of Al2O3 and TiO2 peaks were reduced for longer milling times, suggesting that nanosized particles can be achieved. The densification of Al2O3-TiO2 ceramics was higher than 98% over the relative density in samples sintered at 1500 degrees C for 4h, which presented the formation of Al2TiO5.Univ Estadual Paulista, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, BrazilUniv Estadual Paulista, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, BrazilTrans Tech Publications LtdUniversidade Estadual Paulista (Unesp)Reis de Oliveira Caltabiano, Pietro Carelli [UNESP]de Souza, Marisa Aparecida [UNESP]Costa Marques, Rodrigo FernandoNogueira Campos, Maria Gabrielade Oliveira Hein, Luis Rogerio [UNESP]Ramos, Alfeu Saraiva [UNESP]2014-05-20T13:28:16Z2014-05-20T13:28:16Z2012-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject1193-1198http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.1193Advanced Powder Technology Viii, Pts 1 and 2. Stafa-zurich: Trans Tech Publications Ltd, v. 727-728, p. 1193-1198, 2012.0255-5476http://hdl.handle.net/11449/940110.4028/www.scientific.net/MSF.727-728.1193WOS:000310714100212Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAdvanced Powder Technology Viii, Pts 1 and 20,180info:eu-repo/semantics/openAccess2024-07-02T15:04:23Zoai:repositorio.unesp.br:11449/9401Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:26:41.165759Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
title Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
spellingShingle Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
Reis de Oliveira Caltabiano, Pietro Carelli [UNESP]
Al2O3-TiO2
high-energy ball milling
sintering
biomaterials
title_short Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
title_full Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
title_fullStr Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
title_full_unstemmed Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
title_sort Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
author Reis de Oliveira Caltabiano, Pietro Carelli [UNESP]
author_facet Reis de Oliveira Caltabiano, Pietro Carelli [UNESP]
de Souza, Marisa Aparecida [UNESP]
Costa Marques, Rodrigo Fernando
Nogueira Campos, Maria Gabriela
de Oliveira Hein, Luis Rogerio [UNESP]
Ramos, Alfeu Saraiva [UNESP]
author_role author
author2 de Souza, Marisa Aparecida [UNESP]
Costa Marques, Rodrigo Fernando
Nogueira Campos, Maria Gabriela
de Oliveira Hein, Luis Rogerio [UNESP]
Ramos, Alfeu Saraiva [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Reis de Oliveira Caltabiano, Pietro Carelli [UNESP]
de Souza, Marisa Aparecida [UNESP]
Costa Marques, Rodrigo Fernando
Nogueira Campos, Maria Gabriela
de Oliveira Hein, Luis Rogerio [UNESP]
Ramos, Alfeu Saraiva [UNESP]
dc.subject.por.fl_str_mv Al2O3-TiO2
high-energy ball milling
sintering
biomaterials
topic Al2O3-TiO2
high-energy ball milling
sintering
biomaterials
description The present work reports on the preparation of Al2O3-TiO2 ceramics by high-energy ball milling and sintering, varying the molar fraction in 1:1 and 3:1. The powder mixtures were processed in a planetary Fritsch P-5 ball mill using silicon nitride balls (10 mm diameter) and vials (225 mL), rotary speed of 250 rpm and a ball-to-powder weight ratio of 5:1. Samples were collected into the vial after different milling times. The milled powders were uniaxially compacted and sintered at 1300 and 1500 degrees C for 4h. The milled and sintered materials were characterized by X-ray diffraction and electron scanning microscopy (SEM). Results indicated that the intensity of Al2O3 and TiO2 peaks were reduced for longer milling times, suggesting that nanosized particles can be achieved. The densification of Al2O3-TiO2 ceramics was higher than 98% over the relative density in samples sintered at 1500 degrees C for 4h, which presented the formation of Al2TiO5.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
2014-05-20T13:28:16Z
2014-05-20T13:28:16Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.1193
Advanced Powder Technology Viii, Pts 1 and 2. Stafa-zurich: Trans Tech Publications Ltd, v. 727-728, p. 1193-1198, 2012.
0255-5476
http://hdl.handle.net/11449/9401
10.4028/www.scientific.net/MSF.727-728.1193
WOS:000310714100212
url http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.1193
http://hdl.handle.net/11449/9401
identifier_str_mv Advanced Powder Technology Viii, Pts 1 and 2. Stafa-zurich: Trans Tech Publications Ltd, v. 727-728, p. 1193-1198, 2012.
0255-5476
10.4028/www.scientific.net/MSF.727-728.1193
WOS:000310714100212
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Advanced Powder Technology Viii, Pts 1 and 2
0,180
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1193-1198
dc.publisher.none.fl_str_mv Trans Tech Publications Ltd
publisher.none.fl_str_mv Trans Tech Publications Ltd
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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