Sintered magnets from strip cast alloys
Sintered permanent magnets based on
Nd2-y-zPryDyzFe14B
metallic alloys has been produced. The sample size is about Ø6 mm
and 6-7 mm long when they are taken out of the furnace as shown on
the figure. The mass density of the sample almost the
ideal of 7.4 g/cm3. It has been shown that a reasonable
remanence is obtained, but the coercivity is still rather low.
Further work is now done to optimize the cooling rate after the
sintering as well the post annealing in order to increase the
coercivity of the samples.
Contact: Nini Pryds, nipr@dtu.dk , +45 4677 5752,
Manlong Xia, maxi@dtu.dk, +45 2489
2278, Christian Bahl, chrb@dtu.dk,
+45 4677 5491 and Asger Bech Abrahamsen, asab@dtu.dk , +45 2492
1613