Microstructure and squareness factor

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dc.contributor.authorPERIGO, E.A.pt_BR
dc.contributor.authorTAKIISHI, H.pt_BR
dc.contributor.authorMOTTA, C.C.pt_BR
dc.contributor.authorFARIA, R.N.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2014-07-15T13:45:03Zpt_BR
dc.date.accessioned2014-07-30T11:46:22Z
dc.date.available2014-07-15T13:45:03Zpt_BR
dc.date.available2014-07-30T11:46:22Z
dc.date.issued2007pt_BR
dc.description.abstractA quantitative correlation between the microstructure and squareness factor of R16 Fe76 B8 (R=Nd or Pr) sintered magnets is proposed. The expression was derived based on the micrographs of 19 magnets, making a total of more than 11 000 grains analyzed. This expression is independent of the determination of the sample's magnetic properties. Magnet processing conditions were used to modify the microstructure and, hence, the squareness factor. Six microstructural parameters-grain size, grain elongation, grain roundness, and their respective standard deviations-were quantified using an image analyzer software program. The squareness factor was higher for magnets with a microstructure showing rounder grains and a sharp size distribution. A comparison of the squareness factor obtained by the proposed expression with that calculated from the demagnetization curve showed a fairly good agreement. Some disparities were also found and are discussed herein.
dc.format.extent113912-1 - 113912-4pt_BR
dc.identifier.citationPERIGO, E.A.; TAKIISHI, H.; MOTTA, C.C.; FARIA, R.N. Microstructure and squareness factor: a quantitative correlation in (Nd, Pr)FeB sintered magnets. <b>Journal of Applied Physics</b>, v. 102, p. 113912-1 - 113912-4, 2007. DOI: <a href="https://dx.doi.org/10.1063/1.2821756">10.1063/1.2821756</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/5173.
dc.identifier.doi10.1063/1.2821756
dc.identifier.issn0021-8979pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/5173pt_BR
dc.identifier.vol102pt_BR
dc.relation.ispartofJournal of Applied Physicspt_BR
dc.rightsopenAccessen
dc.subjectsintered materialspt_BR
dc.subjectpermanent magnetspt_BR
dc.subjectmagnetic propertiespt_BR
dc.subjectmicrostructurept_BR
dc.subjectpraseodymium alloyspt_BR
dc.subjectneodymium alloyspt_BR
dc.subjectmagnetspt_BR
dc.titleMicrostructure and squareness factorpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorRUBENS NUNES DE FARIA JUNIOR
ipen.autorCLAUDIO COSTA MOTTA
ipen.autorHIDETOSHI TAKIISHI
ipen.autorELIO ALBERTO PÉRIGO
ipen.codigoautor227
ipen.codigoautor3320
ipen.codigoautor25
ipen.codigoautor3028
ipen.contributor.ipenauthorRUBENS NUNES DE FARIA JUNIOR
ipen.contributor.ipenauthorCLAUDIO COSTA MOTTA
ipen.contributor.ipenauthorHIDETOSHI TAKIISHI
ipen.contributor.ipenauthorELIO ALBERTO PÉRIGO
ipen.date.recebimento08-04pt_BR
ipen.identifier.fi2.171pt_BR
ipen.identifier.ipendoc12346pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi1.500 - 2.999
ipen.subtituloa quantitative correlation in (Nd, Pr)FeB sintered magnets
ipen.type.genreArtigo
relation.isAuthorOfPublication20cb7788-3957-4550-9e5c-cf7f5261eec4
relation.isAuthorOfPublicationb675d4bc-fcc7-4db7-8d0b-e44b54116d5f
relation.isAuthorOfPublicatione8af83dd-1a6d-43bf-bbac-c559d80a68fa
relation.isAuthorOfPublication558bab0c-12a9-45b8-8ab0-e714faa6d523
relation.isAuthorOfPublication.latestForDiscovery558bab0c-12a9-45b8-8ab0-e714faa6d523
sigepi.autor.atividadePERIGO, E.A.:3028:32:Spt_BR
sigepi.autor.atividadeTAKIISHI, H.:25:32:Npt_BR
sigepi.autor.atividadeMOTTA, C.C.:3320:-1:Npt_BR
sigepi.autor.atividadeFARIA, R.N.:227:32:Npt_BR
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