B/ND
Recovery of Dy from a Mixture of Nd, Fe, B and Dy by Electrolysis in Molten LiCl
... graphs showed that the electrodeposited material had been deposited on the electrode as particulate matter. In addition, from the point analysis by EPMA using four dispersive crys- tals (LiF crystal, pentaerythritol ...
5
Modification of the Interface Nanostructure and Magnetic Properties in Nd Fe B Thin Films
... films given in Fig. 7 are shown in Fig. 9. We observed the double-step behavior of initial curve for both films. But, the post-annealed Nd-Fe-B/Nd film has a much higher field for the second step ...
8
Effect of Weak Magnetic Intergranular Phase on the Coercivity in the HDDR Nd Fe B Magnet
... consistent well with the experimental data (IP’s thickness of the HDDR Nd-Fe-B magnet is around 1 nm, and its coercivity is 1058 kA/m) reported by Nakayama et al [8]. In summary, the weak magnetic ...
5
Experimental study of the transport properties of Nd-Fe-B and Sm-Co magnets
... In the region of the magnetic phase transition the description of the results was carried out according to the scaling theory [9]. A detailed procedure for finding the critical index ( α ) and critical amplitude ( A ) of ...
5
Mechanical Properties of Injection-Molded Nd-Fe-B Type Permanent Magnets
... A strong dependence on the concentration of particles, as well as the type of particles was observed as well. While the tensile strength of PPS compounds decreased in general with increasing volume percentage of ...
95
Dynamic Mechanical Behaviour of Polymer Bonded Nd Fe B Composite Materials
... Magnetic composite materials with varied content of Nd Fe B particles in epoxy matrix are examined from a dynamic mechanical perspective. Structural, viscoelastic and magnetic properties of composites ...
6
Micromagnetic Simulations of Magnetization Reversals in Nd Fe B Based Permanent Magnets
... for Nd-Fe-B sintered magnets, platelet-like shaped grains for hot-deformed magnets, or thin films with columnar grains can be modeled as shown in ...
9
THE SYSTEMATIC DEPENDENCE OF (E2;4G→2G)/B(E2;2G→0G) RATIO ON N AND Z FOR ND-HG NUCLEI
... The variation of B(E2; 4g→2g)/ B(E2;2g→0g) ratio with N and Z is shown for Nd – Hg nuclei. It is found that the there is shape phase transition for N=88 and 90 isotones (Nd, Sm, Gd, Er) from ...
6
Magnetic Domain Structure Analysis of Nd Fe B Sintered Magnets Using XMCD PEEM Technique
... A combination of X-Ray Magnetic Circular Dichroism and PhotoEmission Electron Microscopy (XMCD-PEEM) was applied to the magnetic domain analysis of Nd-Fe-B sintered magnets. The XMCD-PEEM high-resolution ...
6
Transmission Electron Microscopy Study on the Grain Boundaries and Magnetic Domains in Nd–Fe–B Based Magnets
... As demonstrated in Fig. 1, the boundary structures of samples A and B appear to be different. The grain boundaries were not very smooth (actually, they were meandering when observed by high-resolution electron ...
8
Enhanced energy product in Y Co Fe magnets intermediate between Nd Fe B and ferrite
... There is increasing interest in finding oriented dense magnets with properties intermediate between sintered ferrite and sintered Nd-Fe-B, having reduced content of strategic rare earths. 1 Development and ...
5
Evaluation of the Microstructural Contribution to the Coercivity of Fine Grained Nd Fe B Sintered Magnets
... Three types of NdFeB sintered magnets with different grain sizes were prepared by a novel pressless process 10) using 27.0 mass% Nd, 4.60 mass% Pr, 1.0 mass% Co, 0.10 mass% Cu, 0.25 mass% Al, 1.02 mass% ...
5
Effect of Annealing on Magnetic Properties of Ultrafine Jet Milled Nd Fe B Powders
... the Nd-rich phase is strongly related to the change in coercivity during annealing for the Nd-Fe-B ...the Nd-rich phase) in the jet-milled powders was analyzed by ...
5
Microstructure of Nd Rich Grain Boundary Phase in Die Upset Nd Fe Co Ga B Magnet
... a Nd-rich intergranular phase or a GB phase is not detected between the misaligned grains, while aligned Nd 2 Fe 14 B grains are separated with thin GB ...
6
Synthesis and Characterization of Directionally Solidified Nd- Fe-B alloys
... 280 The as-cast samples of xNd-(99-x)Fe-1B (x = 26,30,33,36) were directionally solidified in a directional solidification furnace under vacuum at different pulling rates viz.50,100,150 cm/hr. using quartz tube as the ...
7
Search for magnets with properties intermediate between Nd Fe B and Ferrite
... The rare-earth crisis peaked in the summer of 2011 with prices of both light and heavy rare earths reaching unprecedented levels (500 $/kg for Nd, 3000 /kg for Dy). Despite a reduction to prices of about 20% of ...
184
Electron Irradiation Induced Phase Transformation in Fe Nd B Alloys
... and Nd-B alloys are very effective for investigating the dominant factors of electron irradiation induced C-A, A-C and C-A-C transition in ternary Fe-Nd-B ...89:5 Nd 10:5 ...
6
The thermal expansion of hard magnetic materials of the Nd-Fe-B system
... of Nd-Fe-B system, as well as to clarify the question about the influence of the residual magnetization by density and thermal expansion of the ...of Nd-Fe-B system are provided; and it was ...
6
Optimization and comparison of flux-concentrating Nd-Fe-B generator considering variable power factor and wind conditions for a 6MW offshore wind turbine
... of Nd-Fe-B has increased and fluctuated ...flux-concentrating Nd-Fe-B generator (where flux-concentrating characteristics helps to increase flux density in the air gap) and optimize that for ...
5
Thermodynamics of Oxygen in the Fe Nd O System for Production of Dy Free Nd Fe B Magnet
... sintered Nd-Fe-B magnet has the highest magnetic properties which meet the requirements in many commercial products such as voice coil motors for hard disk drives, industrial motors and generators, devices ...
5