Nd-Fe-Cu-B
Electron Irradiation Induced Phase Transformation in Nd2Fe14B Alloy
... and Fe-18.9 mass%B mother ...using Cu-K radiation, transmission electron microscopy (TEM) using a JEM-3010 microscope operated at 300 kV and high resolution transmission electron microscopy (HREM) ...
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Modification of the Interface Nanostructure and Magnetic Properties in Nd Fe B Thin Films
... Magnetization curves at room temperature were mea- sured by using SQUID magnetometer in fields of up to 50 kOe. Crystal structure and orientation of the films were evaluated by using X-ray diffraction (XRD) and pole- ...
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Search for magnets with properties intermediate between Nd Fe B and Ferrite
... The system has a Cu electrode with sharp W tip and three pocket crucible where the material is melted (Fig. 2.1). The tip is made from 2% thoriated, red tungsten (part number: TE2-5/32) 4.0 mm in diameter which is ...
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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% ...
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Electron Irradiation Induced Phase Transformation in Fe Nd B Alloys
... using Cu-K radiation, transmission electron microscopy (TEM) using a JEM-3010 microscope operated at 300 kV and high resolution transmission electron microscopy (HREM) using a JEM-2010 microscope operated at 200 ...
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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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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, ...
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Phase Stability of an Amorphous Phase Against Electron Irradiation Induced Crystallization in Fe Based Metallic Glasses
... Electron irradiation induced nano-crystallization of melt-spun amorphous phase in Fe-Zr-B ternary alloys was investigated focusing on the difference in phase stability of amorphous phase during thermal ...
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Effects of Grain Boundary Phase on Coercivity of Dysprosium Free Rare Earth Magnet
... of Nd-Fe-B magnets decreases at high ...in Nd-Fe-B magnets used under high tem- perature ...purpose, Nd or Pr is often substi- tuted by heavy rare earth elements such as ...
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Effect of Annealing on Magnetic Properties of Ultrafine Jet Milled Nd Fe B Powders
... ne Nd-Fe-B powders with an average particle size of ...(HDDR)-treated Nd-Fe-B alloys by hydrogen decrepitation and helium jet ...liquid Nd-rich ...
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Recovery of Dy from a Mixture of Nd, Fe, B and Dy by Electrolysis in Molten LiCl
... which Fe, B, Nd and Dy powders were added, then reducing the Dy ions, which were ionized from the dysprosium chloride, at the ...the Fe, B, Nd and Dy powders were added to the ...
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Effect of Weak Magnetic Intergranular Phase on the Coercivity in the HDDR Nd Fe B Magnet
... [7] R. W. Gao, J. C. Zhang, and D. H. Zhang, “Dependence of the magnetic properties on the alignment magnetic field for Nd-Fe-B bonded magnets made from anisotropic HDDR powders,” Journal of ...
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Relationship between Microstructures and Soft Magnetic Properties of Simultaneously P and Cu Added Fe Nb B Ribbon Alloys
... and Cu for B and Fe, respectively, because Cu has no amorphous-forming ability and P has slightly lower ability than B for the Fe-based ...
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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 ...
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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 ...
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Room Temperature Oxidation of Al-Cu-Fe and Al- Cu-Fe-Cr Quasicrystals
... We have investigated formation of oxides on quasicrystalline and crystalline alloy surfaces of similar composition, in different oxidizing environments. This includes a comparison between a quaternary orthorhombic ...
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A Thermodynamic Modeling of the Fe Nd Sb System
... 5) E. Bauer, St. Berger, A. Galatanu, Ch. Parl, M. Della Mea, H. Michor, G. Hilscher, A. Grytsiv, P. Rogl, D. Kaczorowski, L. Keller, T. Hermannsdörfer and P. Fischer: Physica B 312 313 (2002) 840. 6) Y. Zhang: ...
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“MEMECYLON UMBELLATUM (MELASTOMATACEAE): A REVIEW” by Himanshu Joshi*, Gururaja M. Pand Sunity singh, India.
... Fe was followed by Mn, Cu and Zn in case of Koppa samples whereas Fe was followed by Mn, Zn and Cu in young leaves and Fe was followed by Mn, Cu and Zn in mature leaves sample of[r] ...
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Magnetic properties of R6Fe13 xM1+x and their hydrides
... the Fe and Nd moments and the applied ...12 Fe nearest neighbors and a strong cou- pling to the Fe moment might not be ...4 Fe and 8 other 16l sites as nearest ...the Fe mo- ...
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The Equilibrium Relation of Immiscibility in an Fe Cu B System at 1873 K
... the Fe-Cu-B system, we consider the mixing of the Fe-B and Cu pseudo- binary system, because boron, which is an interstitial element, is only dissolved in the Fe-rich ...
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