D Dudad Dodydedo Ccdaede Cu Ccd Dedadodud Dy Cu Ccdod Dodydu Cu Dedu Ccdaededad Dy Cu Dedodod Dn Daedyd

A Cu Ka1 And Cu Ka2 Lines Recorded With A Ccd Camera B Lineout Of The Magnetic properties. figure 1a shows the demagnetization curves of the die upset (reference) and dy cu press injected magnets as well as their individual annealed magnets. hereafter, the annealing. The dy free and dy containing sintered magnets, with at.% compositions of nd 14.5 fe 78.1 co 1.0 cu 0.2 b 6.2 and nd 10.8 dy 3.7 fe 78.1 co 1.0 cu 0.2 b 6.2 (9 wt% dy), were prepared by a.

Pdf Ccd Dambovita Ro Harta Sistemului Educaи Ional Corelat Cu Ccd The results indicate that, although the gbdp of the eutectic alloy ribbons is limited in mass gain and diffusion depth to near surface regions (~600 µm for pr cu alloy) in the hddr system, the dy. The grain boundary diffusion process (gbdp) has become an important technique in improving the coercivity and thermal stability of dy free sintered nd fe b magnets. the influence of dy70al10ga20 and (pr75dy25)70al10ga20 alloys by the gbdp on sintered nd fe b magnets are investigated in this paper. after diffusing dy70al10ga20 and (pr75dy25)70al10ga20 alloys, the coercivity (hcj) of the magnets. The addition of cu 2 in fig. 2 results in a significant positive shift in the reduction potential of dy 3 , with a reduction peak potential of −0.446 v observed.the presence of black and red solid particles on the surface of the ndfeb magnet indicates that the co deposition of dy 3 and cu 2 is responsible for this potential shift. The coercivity of the modified magnets reaches 21 koe, which is the highest value in dy free nd fe b sintered magnets. microstructural investigations show that a smooth and thick grain boundary layer is formed, and the content of the ferromagnetic elements in the grain boundary layer decreases from 65 at. % to 9 at.

Gbdisel Memedroid The addition of cu 2 in fig. 2 results in a significant positive shift in the reduction potential of dy 3 , with a reduction peak potential of −0.446 v observed.the presence of black and red solid particles on the surface of the ndfeb magnet indicates that the co deposition of dy 3 and cu 2 is responsible for this potential shift. The coercivity of the modified magnets reaches 21 koe, which is the highest value in dy free nd fe b sintered magnets. microstructural investigations show that a smooth and thick grain boundary layer is formed, and the content of the ferromagnetic elements in the grain boundary layer decreases from 65 at. % to 9 at. With injecting dy cu eutectic alloy, an optimized initial microstructure was achieved in the near surface diffused regions, which made preparations for the subsequent texture improvement. besides. Microstructural analysis shows that the coercivity enhancement of the magnets with dy cu and pr dy cu alloys was mainly resulted from the enhanced magnetic anisotropy of the dy rich extensive layers in nd 2 fe 14 b grains. nevertheless, the coercivity enhancement for the magnet with pr cu alloy was mainly attributed to the decoupling magnetic.