The effect of the processing temperature on the microstructures of Pr-Fe-Co-Nb HDDR magnets
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2008
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Materials Science Forum
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Pr14FebalCoxB6Nb0.1 magnets have been produced using the hidrogenation
disproportionation desorption recombination (HDDR) process. The effect of the Co content (x= 0,
4, 8, 10, 12, 16) and the reaction temperature (800-900 ºC) on the microstructure and magnetic
properties of the HDDR material have been investigated. The processing temperature
(desorption/recombination) affected the microstructure and magnetic properties of the bonded
magnets. The alloy with low cobalt content (4 at.%) required the highest reaction temperature
(880°C) to yield anisotropic bonded magnets. The optimum temperature for alloys with 8 at.% Co
and 10 at.% Co were 840°C and 820°C, respectively. Alloys with high cobalt content (12 at.% and
16 at.%) were processed at 840°C. Each alloy required an optimum reaction temperature and
exhibited a particular microstructure according to the composition. Pr14Fe80B6Nb0.1 magnets have
been processed for comparison.
Como referenciar
SILVA, S.C.; FERREIRA, E.A.; FARIA, R.N.; TAKIISHI, H. The effect of the processing temperature on the microstructures of Pr-Fe-Co-Nb HDDR magnets. Materials Science Forum, v. 587-588, p. 108-113, 2008. DOI: 10.4028/www.scientific.net/MSF.591-593.108. Disponível em: http://repositorio.ipen.br/handle/123456789/4908. Acesso em: 01 Jun 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.