Nd-Dy-Fe-B
Recovery of Dy from a Mixture of Nd, Fe, B and Dy by Electrolysis in Molten LiCl
... the Dy ion activity was increased in the ...was Dy even after the Fe, Nd, and B were added to the bath in addi- tion to the Dy ...because Dy is more re- active to ...
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Consolidation of Fe Co Nd Dy B Glassy Powders by Spark Plasma Sintering and Magnetic Properties of the Consolidated Alloys
... supercooled liquid region of over 40 K before crystalliza- tion. 29,30) Its high thermal stabilityof the supercooled liquid has enabled us to form a bulk glassyalloybyvarious casting processes. 31) Thick ribbon and bulk ...
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Experimental study of the transport properties of Nd-Fe-B and Sm-Co magnets
... on Nd-Fe-B compounds have the following chemical structure, namely Fe ~ 71%, Nd ~ 24–27%, Dy ~ 0,5–2,5%, Co ~ 1% and B ~ ...Pr, Fe, Cu and ...
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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 ...
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The thermal expansion of hard magnetic materials of the Nd-Fe-B system
... type. The technology of their manufacture is described in [9], and their technical characteristics are listed in [10]. According with the information provided by the manufacturer the samples have the following chemical ...
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Modification of the Interface Nanostructure and Magnetic Properties in Nd Fe B Thin Films
... sintered Nd-Fe-B magnets without using rare elements such as Dy and Tb is one of the most crucial and urgent subjects [1–3], in view of the rapidly growing demand for high-power motors such as ...
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Effects of Hydrogenation Disproportionation Desorption Recombination Processing Parameters on the Particle Size of Ultrafine Jet Milled Nd Fe B Powders
... are Nd-Fe-B sintered ...of Dy can increase the coercivity of Nd-Fe-B sintered magnets; however, this is expensive and decreases the saturation ...the Nd 2 Fe ...
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Thermal Stability and Soft Magnetic Properties of (Fe, Co) (Nd, Dy) B Glassy Alloys with High Boron Concentrations
... Among these, the melt-spun (Fe, Co)–B–Si amorphous alloys have been practically used as soft magnetic materials in elec- tronic transformer. 9) However, those amorphous alloys did not exhibit high ...
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Evaluation of the Microstructural Contribution to the Coercivity of Fine Grained Nd Fe B Sintered Magnets
... as Dy and Tb are added to improve the coercivity. However, increasing the Dy content decreases the (BH) max , and natural Dy resources are ...
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Thermodynamics of Oxygen in the Fe Nd O System for Production of Dy Free Nd Fe B Magnet
... the Fe-Nd alloy is too small to compensate the en- ergy gap between regular solution model and real solution of the present ...molten Fe-Nd alloy are quite closer to that into molten Nd ...
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Effects of Grain Boundary Phase on Coercivity of Dysprosium Free Rare Earth Magnet
... 17.3 at% R(Nd, Pr) showed magnetic properties of Br = 1181 mT and HcJ = 1998 kA/m. Coercivity of higher than 1990 kA/m (25 kOe) without using heavy rare-earth ele- ments is remarkably good, considering the fact ...
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Transmission Electron Microscopy Study on the Grain Boundaries and Magnetic Domains in Nd–Fe–B Based Magnets
... unchanged at this stage. Increasing the applied magnetic field to 240 kA/m reversed the magnetization in one of the previously unchanged grains (see Fig. 7(e)). The last grain underwent magnetization reversal in a higher ...
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Magnetic Domain Structure Analysis of Nd Fe B Sintered Magnets Using XMCD PEEM Technique
... 3.2 Domain structures in the field-demagnetized state Figure 5 shows structures of magnetic domains and complementary phases in the field-demagnetized state. The images were much distorted in comparison with the ...
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Electron Irradiation Induced Nano Crystallization in Fe77Nd4 5B18 5 Metallic Glass
... higher Fe composition than the dotted line were ...among Fe, Nd and B atoms. Since the atomic radius of Nd is the biggest among these three elements, dynamic displacement of Nd ...
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Effect of Post-Sintering Annealing Treatment on Magnetic Properties of Some Nd Fe b Based Magnets
... A, B and C, which had already been annealed at 500 ° C for 1 hr and subsequently F-cooled to RT, at 500 ° C (in magnet B) or at 600 ° C (in magnets A and C) for 1 hr, followed by AC to RT, the deterioration ...
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A Thermodynamic Modeling of the Fe Nd Sb System
... Figure 9(a) represents the predicted projection of the liquidus surfaces in the composition range 90100 at% Sb (i.e. Sb-rich corner) in the FeNdSb system, calculated using the present thermodynamic description. Figure ...
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Electron Irradiation Induced Phase Transformation in Nd2Fe14B Alloy
... compound at 104 K was different from that at 298 K. Only -Fe solid solution was formed at 104 K, while at 298 K not only it but also other compounds precipitated from an amorphous phase. As described in chapter ...
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The thermal expansion coefficient of Nd-Fe-B and Sm-Co permanent magnets in the region of the Curie point
... Abstract. A dilatometric study results on the linear thermal expansion coefficient (LTEC) of Nd-Fe-B and Sm-Co permanent magnets are presented. The experimental data in the temperature range 200 − ...
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Nano Crystallization and Stability of an Amorphous Phase in Fe Nd B Alloy under 2 0 MeV Electron Irradiation
... before irradiation (a), the BF image shows a featureless contrast corresponding to an amorphous single phase in the central area electron irradiation. Only broad halo rings without any crystalline diffraction spots exist ...
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A tannin compound from Sanguisorba officinalis blocks Wnt/β-catenin signaling pathway and induces apoptosis of colorectal cancer cells
... of DY, DY‑B and DYB4 on β‑catenin levels in the cytoplasm and nucleus of NIH3T3 and HT29 cells by Immunofluorescence ...a, b Showed the influence of DY (40 μg/mL), DY‑B ...
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