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

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dc.contributor.authorReis de Oliveira Caltabiano, Pietro Carelli [UNESP]
dc.contributor.authorde Souza, Marisa Aparecida [UNESP]
dc.contributor.authorCosta Marques, Rodrigo Fernando
dc.contributor.authorNogueira Campos, Maria Gabriela
dc.contributor.authorde Oliveira Hein, Luis Rogerio [UNESP]
dc.contributor.authorRamos, Alfeu Saraiva [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:28:16Z
dc.date.available2014-05-20T13:28:16Z
dc.date.issued2012-01-01
dc.description.abstractThe 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.en
dc.description.affiliationUniv Estadual Paulista, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, Brazil
dc.format.extent1193-1198
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.1193
dc.identifier.citationAdvanced Powder Technology Viii, Pts 1 and 2. Stafa-zurich: Trans Tech Publications Ltd, v. 727-728, p. 1193-1198, 2012.
dc.identifier.doi10.4028/www.scientific.net/MSF.727-728.1193
dc.identifier.issn0255-5476
dc.identifier.urihttp://hdl.handle.net/11449/9401
dc.identifier.wosWOS:000310714100212
dc.language.isoeng
dc.publisherTrans Tech Publications Ltd
dc.relation.ispartofAdvanced Powder Technology Viii, Pts 1 and 2
dc.relation.ispartofsjr0,180
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectAl2O3-TiO2en
dc.subjecthigh-energy ball millingen
dc.subjectsinteringen
dc.subjectbiomaterialsen
dc.titlePreparation of Al2TiO5-Al2O3 and Al2TiO5-Al2O3-TiO2 Ceramics by High-Energy Ball Milling and Sinteringen
dc.typeTrabalho apresentado em evento
dcterms.rightsHolderTrans Tech Publications Ltd
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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