Preparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sintering
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
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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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 |
|
_version_ |
1808129202331844608 |