Influence of milling time on magnetic properties and microstructure of sintered Nd-Fe-B based permanent magnets
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In this paper, the effect of the grain size on sintered Nd-Fe-B based permanent magnets
was investigated. In order, the magnets were produced by different milling times at 200 rpm and
then vacuum sintered at 1373 K for 60 minutes followed by cooling outside the furnace. The
magnets either produced by lower and higher milling times (30 and 75 minutes) exhibited lower
remanence and coercivity, due the inhomogeneous distribution of the grain sizes. The magnet
produced by intermediary milling time (45 minutes) exhibited the highest properties among all
samples, with remanence of 1.06 T, coercivity of 891.3 KA.m-1, maximum energy product of
211 KJ.m3 and a squareness factor equal 0.92.
Como referenciar
FIM, R.G.T.; SILVA, M.R.M.; SILVA, S.C.; CASINI, J.C.S.; WENDHAUSEN, P.A.P.; TAKIISHI, H. Influence of milling time on magnetic properties and microstructure of sintered Nd-Fe-B based permanent magnets. Materials Science Forum, v. 930, p. 445-448, 2018. DOI: 10.4028/www.scientific.net/MSF.930.445. Disponível em: http://repositorio.ipen.br/handle/123456789/30120. Acesso em: 30 Dec 2025.
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.