PERIGO, E.A.TAKIISHI, H.MOTTA, C.C.FARIA, R.N.2014-07-152014-07-302014-07-152014-07-302009PERIGO, E.A.; TAKIISHI, H.; MOTTA, C.C.; FARIA, R.N. On the squareness factor behavior of RE-FeB (RE=Nd or Pr) magnets above room temperature. <b>IEEE Transactions on Magnetics</b>, v. 45, n. 10, p. 4431-4434, 2009. DOI: <a href="https://dx.doi.org/10.1109/TMAG.2009.2025190">10.1109/TMAG.2009.2025190</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/4843.0018-9464http://repositorio.ipen.br/handle/123456789/4843The magnetic stability of RE-FeB (RE = Nd or Pr) sintered magnets above room temperature was investigated by monitoring the squareness factor (SF). At 293 les T les 423 K, commercial anisotropic NdFeB-based sintered magnets with a Curie temperature ( T c ) of around 585 K showed no appreciable change in their squareness factors. This indicates that the SF is controlled mainly by the samples' microstructural features. Magnets with T c > 593 K showed a tendency for improved squareness factor at higher temperatures due to the methodology employed to characterize the SF. On the other hand, PrFeCoBCuNb sintered magnets with T c > 593 K presented a reduction in the SF with temperature rising from 298 to 373 K.4431-4434openAccessmagnetsmagnetic propertiessintered materialspraseodymium alloysrare earth alloysboron alloysArtigo de periódico104510.1109/TMAG.2009.2025190