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Re2fe14b

WebJul 26, 2016 · In this work, we found that stable 2:14:1 tetragonal phase is formed in [ (Pr, Nd) 1−x (La, Ce) x] 2.14 Fe 14 B compounds even with x up to 0.5 by the commercialized … WebAug 20, 1991 · The family of compounds Re 2 Fe 14 B, in which Re ≡ Nd, Ce, YandGd, form compounds with hydrogen which can be partially decomposed under vacuum. The reversible part has divariant characteristics. The formation kinetics are controlled by a diffusion mechanism. Fragmentation of the sample appears in each grain as concentric cracks.

Microstructures and Magnetic Properties of Prnd-Free (CE, Re)-Fe …

WebJul 26, 2016 · In this work, we found that stable 2:14:1 tetragonal phase is formed in [ (Pr, Nd) 1−x (La, Ce) x] 2.14 Fe 14 B compounds even with x up to 0.5 by the commercialized … WebJun 29, 2024 · 5.4. Re2Fe14B based permanent magnetic materials 5.5. Sm-based permanent magnetic materials 5.6. Need of Re-free 5.7. Permanent magnets based on RE-free compounds. 6. Nanomagnets for rare earth free permanent magnets 6.1. Cobalt Carbide nanoparticles 6.2. Cobalt Iron Carbide nanoparticles 6.3. MnxGa Nanostructured … drinks for st. patricks day https://nextgenimages.com

High field magnetostriction and magnetic thermal …

WebMay 2, 1996 · Keywords: Anisotropy RE compounds; NMR spin echo; Permanent magnet materials Since the discovery of the high performance permanent magnet material Nd2Fe14B in 1983 the RE2Fe14B (RE = rare earth) compounds have been thoroughly investigated, leading to a complete description of their structural and bulk magnetic … WebNov 18, 2024 · The experimental Ce-based SC alloys were mainly composed of RE2Fe14B and REFe2 phases. Some “small islands” existing in REFe2 regions were identified as intermediate products of the peritectic reaction. It inferred that a trace amount of α-Fe existed in all the Ce-based SC alloys. The Ce-Fe-B sintered magnet has a large-grain ... WebA high defect density within the structure, unprecedented in RE2Fe14B microstructures, was observed. It is surmised that the defects cause soft magnetic behavior. Stabilization of a columnar, textured microstructure was achieved through the utilization of moderate wheel speeds during melt-spinning, in combination with minor additions of Ag to ... ephebopus cyanognathus male

(PDF) 57Fe MÖSSBAUER STUDY OF RE2Fe14B

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Re2fe14b

Magnetic Properties of Tetragonal SmFe - Wiley Online …

http://p.qqma.com/jrzx/zixun-197jj2-452904552.html WebJul 26, 2016 · Manipulating Ce Valence in RE2Fe14B Tetragonal Compounds by La-Ce Co-doping: Resultant Crystallographic and Magnetic Anomaly Authors Jiaying Jin 1 , Yujing …

Re2fe14b

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WebMar 7, 2012 · Title: Effects of Ag additions on melt-spun RE2Fe14B microstructure and texture Full Record Other RelatedResearch Abstract Control of microstructure and texture … Web本专利技术资料提供了一种RE2Fe14B单相合金，化学通式为RExFeyBz；RE为Nd、Ce或Y；x、y和z分别为RE、Fe和B的原子百分比。其制备方法包括以下步骤：（1）按原子百分比Fe50B50分别称取Fe粉和B粉，混合，压型，熔炼，得Fe‑B合金；（2）退火；（3）测退火后Fe‑B合金中Fe和B含量单相合金专利技术，合金制备 ...

Web본 발명은 r-t-b계 소결 자석 및 그 제조 방법에 관한 것이고, 소결 자석은 결정립계 구역t1, 껍질층 구역t2와 rtb결정립 구역t3을 포함하고; 상기 소결 자석의 표면에서 중심으로 향하는10μm내지 60μm되는 곳에서, 상기 껍질층 구역 t2와 상기 r2fe14b결정립 구역 t3의 면적비는 0.1~0.3이고, 상기 껍질층 구역 t2 ... WebThe Mössbauer spectra of Pr 2 Fe 14 B and Gd 2 Fe 14 B have been measured from 85 to 295 K and fit with a second order approximation in which the angle, ϕ, between the principal axis of the electric field gradient and the easy-axis of magnetization has been fixed by the positions of the near-neighbor rare-earth atoms.

WebSpherical inclusions in the size range of 500 Å-l μm have been observed inside the matrix Re2Fe14B grains. Characterization by X-ray diffraction, electron microdiffraction and energy dispersive X-ray microanalysis, shows that these inclusions are f.c.c. rate earth oxides. The volume fraction of these inclusions increases with Ho content. Web化学成分钕铁硼永磁材料是以金属间化合物Re2Fe14B为基础的永磁材料。 所以，目前国外的多数扬声器生产厂家，基本上把钕铁硼材料作为高音单元的磁性材料，并采取较为有效的散热措施。很少将钕铁硼磁性材料应用到低音单元的制造工艺之中。

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WebMar 7, 2012 · The U.S. Department of Energy's Office of Scientific and Technical Information drinks for stress and anxietyWebJun 4, 1998 · Magnetostriction and thermal expansion measurements have been carried out on polycrystalline RE 2 Fe 14 B permanent magnets (RE=Nd, Ho, Dy, and Y) between 4.2 K and room temperature in pulsed magnetic fields up to 15 T. Nd 2 Fe 14 B exhibits an anisotropic magnetostriction which amounts to λ t =−308×10 −6 at 4.2 K and −96×10 −6 … drinks for sore throatsWebThe starting strip consists of columnar RE2Fe14B grains tual situation. Being distinct from the starting strip containing 97.44 wt and surrounding RE-rich phase, which is also confirmed by the corre- % RE2Fe14B main phase (space group P42/mnm) and 2.56 wt% metallic sponding WDS line scan in Fig. 2 (d). Although the RE-rich phase pos- ephec isatWeb本発明に係る磁石材料は、RE2Fe14B型正方晶化合物を主相とし、F，RE，Fe，Bを含む非晶質である粒界相が、前記主相を取り囲む構造を有する（但し、REはNd及びPrのうち少なくともNdを必ず含む少なくとも1種の希土類元素）。 ephe defWeb摘要： The magnetic properties of R ions in R2Fe14B compounds (R=rare earth, Th) are determined by a combination of R‐Fe exchange and crystalline electric field interactions. ephec collegeWebDec 5, 2000 · Magnetic circular dichroism (MCD) in the x-ray absorption spectroscopy (XAS) at the L2,3 edges for almost entire series of rare-earth (RE) elements in RE2Fe14B, is studied experimentally and theoretically. By a quantitative comparison of the complicated MCD spectral shapes, we find that (i) the 4f-5d intra-atomic exchange interaction not only … ephebopus rufescensWebTwenty new ternary representatives of the Gd_(14)Ag_(51) structure type have been synthesized within the R-Au-M family (R = Y, La–Nd, Sm–Tb, Ho, Er, Yb, Lu; M drinks for spring bridal shower