Radiation effects on microstructure and EPR signal of yttrium oxide rods

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dc.contributor.authorSANTOS, S.C.
dc.contributor.authorRODRIGUES JUNIOR, O.
dc.contributor.authorCAMPOS, L.L.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONFERENCE ON DEFECTS IN INSULATING MATERIALS, 19thpt_BR
dc.date.accessioned2017-02-22T18:07:51Z
dc.date.available2017-02-22T18:07:51Z
dc.date.eventoJuly 10-15, 2016pt_BR
dc.description.abstractDesigning nanostructured materials with high dosimetric efficiency is a great challenge in radiation dosimetry research. From rare-earth series, yttrium oxide is considered as excellent host matrix for rare-earth ions, leading to formation of advanced functional materials with optical, mechanical, chemical, and thermal properties notably improved. Nevertheless, there is a lack of information which correlates microstructural characteristics and performance of rare earths. This work aims to evaluate the radiation effects on microstructure and EPR signal of Y2O3 rods produced by colloidal processing followed by sintering at 1600ºC/4h in air. Ceramic rods were exposed to gamma radiation with doses up to 100kGy. Microstructural and dosimetric characterizations were performed by XRD, SEM and EPR techniques. Yttrium oxide rods as sintered exhibited dense microstructure (96.6% theoretical density) and linear EPR dose response behaviour for wide dose range. These results reveal that yttrium oxide is a promising material for radiation dosimetry.pt_BR
dc.event.siglaICDIMpt_BR
dc.format.extent1-7pt_BR
dc.identifier.citationSANTOS, S.C.; RODRIGUES JUNIOR, O.; CAMPOS, L.L. Radiation effects on microstructure and EPR signal of yttrium oxide rods. In: INTERNATIONAL CONFERENCE ON DEFECTS IN INSULATING MATERIALS, 19th, July 10-15, 2016, Lyon, France. <b>Proceedings...</b> p. 1-7. (IOP Conference Series: Materials Science and Engineering, 169). Disponível em: http://repositorio.ipen.br/handle/123456789/27045.
dc.identifier.orcidhttps://orcid.org/0000-0001-7137-0613
dc.identifier.orcidhttps://orcid.org/0000-0002-6704-1910
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/27045
dc.local.eventoLyon, Francept_BR
dc.publisherBristol, UK: IOP Publishingpt_BR
dc.relation.ispartofseriesIOP Conference Series: Materials Science and Engineering, 169pt_BR
dc.rightsopenAccesspt_BR
dc.subjectceramics
dc.subjectdensity
dc.subjectdosimetry
dc.subjectefficiency
dc.subjectgamma radiation
dc.subjectmicrostructure
dc.subjectnanostructures
dc.subjectphysical radiation effects
dc.subjectrare earths
dc.subjectrods
dc.subjectsintering
dc.subjectthermodynamic properties
dc.subjectyttrium oxides
dc.titleRadiation effects on microstructure and EPR signal of yttrium oxide rodspt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorLETICIA LUCENTE CAMPOS RODRIGUES
ipen.autorORLANDO RODRIGUES JUNIOR
ipen.autorSILAS CARDOSO DOS SANTOS
ipen.codigoautor1195
ipen.codigoautor322
ipen.codigoautor6961
ipen.contributor.ipenauthorLETICIA LUCENTE CAMPOS RODRIGUES
ipen.contributor.ipenauthorORLANDO RODRIGUES JUNIOR
ipen.contributor.ipenauthorSILAS CARDOSO DOS SANTOS
ipen.date.recebimento17-02pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc22909pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationd4d34119-a6e6-4026-9a67-7b16d8b668da
relation.isAuthorOfPublicationf72d59d1-f942-442a-b16e-8b0ba0e2b671
relation.isAuthorOfPublication6d1f35e3-57eb-471d-ae82-5f850a99e01b
relation.isAuthorOfPublication.latestForDiscovery6d1f35e3-57eb-471d-ae82-5f850a99e01b
sigepi.autor.atividadeSANTOS, S.C.:6961:330:Spt_BR
sigepi.autor.atividadeRODRIGUES JUNIOR, O.:322:330:Npt_BR
sigepi.autor.atividadeCAMPOS, L.L.:1195:330:Npt_BR
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