influence of milling conditions on magnetic properties of nd

Structure and properties of sintered MM–Fe–B magnets

Structure and properties of sintered MM–Fe–B magnets

2018-1-2 · Magnetic properties of (misch metal, Nd)-Fe-B melt-spun magnets AIP Advances 7, 056207 (2017); 10.1063/1.4973846 Micromagnetic simulation of the influence of grain boundary on cerium substituted Nd-Fe-B magnets AIP Advances 7, 056201 (2016); 10.1063/1.4972803 Coercivity of Nd-Fe-B hot-deformed magnets produced by the spark plasma sintering method

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The influence of milling and annealing conditions on …

The influence of milling and annealing conditions on …

2015-10-15 · (Nd,Dy) 2 Fe 14 B + x wt% Fe (x = 10 and 22) nanocomposite magnetic powders are synthesized by mechanical milling and annealing. This paper resumes our studies on the influence of structure and microstructure on the magnetic properties of Nd 2 Fe 14 B/α-Fe exchange coupled hard/soft magnetic nanocomposites obtained by mechanical milling and annealing. . Different microstructures …

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(PDF) Influence of Milling Time on Magnetic …

(PDF) Influence of Milling Time on Magnetic …

Influence of Milling Time on Magnetic Properties and Microstructure of Sintered Nd-Fe-B Based Permanent Magnets September 2018 Materials Science Forum 930:445-448

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All-printed magnetically self-healing electrochemical ...

All-printed magnetically self-healing electrochemical ...

Abstract. The present work demonstrates the synthesis and application of permanent magnetic Nd 2 Fe 14 B microparticle (NMP)–loaded graphitic inks for realizing rapidly self-healing inexpensive printed electrochemical devices. The incorporation of NMPs into the printable ink imparts impressive self-healing ability to the printed conducting trace, with rapid (~50 ms) recovery of repeated ...

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Dry and Wet Milling Comparison of Nd-Fe-B Magnets …

Dry and Wet Milling Comparison of Nd-Fe-B Magnets …

In this work, the influence of milling medium was investigated in order to achieve high energy-product Nd-Fe-B magnets, mostly by the remanence improvement related to the obtention of monocrystalline particles during milling. Nd-Fe-B alloy made by strip-casting process were used as starting material, which exhibits refined grain structure and demands special attention during milling in ...

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Hard magnetic properties of NdFexo.sV1.sNx powders

Hard magnetic properties of NdFexo.sV1.sNx powders

2007-10-30 · influence on the crystal structure and the phase composition of the nitrides, it will finally affect the magnetic properties of the magnetic powders. As an illustration, the magnetization curves of the N dFe~o. 5Vl. 5N~ with different nitrogen contents at room temperature, parallel and perpendicular to

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NdFeB_百度文库

NdFeB_百度文库

2010-10-6 · Dependences of magnetic properties of alloy Fe100 – xPtx after 2-h milling and 48-h annealing at 450°C on the composition: 1 ) coercive force m0 Hc ; 2 ) residual magnetization m0 Ir ; 3 ) magnetization m0 I16 in a field of 16 T. Fig. 11.

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中国科学院物理研究所 磁学国家实验室 M03 组

中国科学院物理研究所 磁学国家实验室 M03 组

2020-9-1 · Magnetic properties and magnetocaloric effect in the R2PdSi3 (R = Gd, Dy and Er) compounds JAC626(2015)145 13 Z.B. Li,B.G. Shen,M. Zhang,F.X. Hu,J.R. Sun Substitution of Ce for Nd in preparing R2Fe14B nanocrystalline magnets JAC628(2015)325 14

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Magnetic Materials and Devices for the 21st Century ...

Magnetic Materials and Devices for the 21st Century ...

Roman Gozdur, Piotr Gębara, Krzysztof Chwastek, The influence of the DC-biased magnetic field on dynamic magnetic properties of the LaFeCoSi alloy, Journal of Magnetism and Magnetic Materials, 10.1016/j.jmmm.2019.166328, 500, (166328), (2020).

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发表文章 – 中国科学院物理研究所 -M05

发表文章 – 中国科学院物理研究所 -M05

2020-5-1 · Title: Structural and magnetic properties in Bi1-xRxFeO3 (x=0-1, R=La, Nd, Sm, Eu and Tb) polycrystalline ceramics Source: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 322 (15): 2251-2255 AUG 2010 Record 15 of 19

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Microstructure, Magnetic Properties, and Electrical ...

Microstructure, Magnetic Properties, and Electrical ...

2014-12-2 · Abstract: Nd-Fe-B/NdF 3 composite magnets have been prepared by two different mixing methods: 1) mixing in agate mortar without lubricant and 2) milling in a planetary ball mill with heptane. The comparison of two mixing methods and their influences on the electrical and magnetic properties of the Nd-Fe-B/NdF 3 composite magnets have been investigated.

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INFLUENCE OF PROCESSING CONDITIONS ON THE …

INFLUENCE OF PROCESSING CONDITIONS ON THE …

2017-8-23 · 1% Nd 342 24.0 453 39.3 599 3.4 4% Nd 349 20.7 454 39.7 592 4.0 8% Nd 359 10.4 457 42.1 588 5.6 *T max values correspond to DTG peak temperature Fig. 1 a – TG and b – DTA curves of the powder precursors of pure and Nd doped SrTiO 3 before milling

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Influence of Milling Time on Magnetic Properties and ...

Influence of Milling Time on Magnetic Properties and ...

2019-10-15 · The magnetic properties are listed in Table 1. Fig. 1. Demagnetization curves of the samples produced by 30, 45, 60 and 75 minutes, respectively. Fig. 2. (a) variation of remanence and coercivity and (b) squareness facto r in function of milling time. Thi s result shows the fact that exist an optimum milling time which magnetic properties are ...

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Influence of jet milling process parameters on particle ...

Influence of jet milling process parameters on particle ...

2015-4-25 · The method of milling used for powder preparation and milling parameters strongly influence the particle size, phase formation and magnetic properties of the samples. Apart from conventional ball milling, jet milling is also widely used due to its ability to produce powders in large scale uncontaminately with narrow particle size distribution.

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Influence of milling time on magnetic properties and ...

Influence of milling time on magnetic properties and ...

In this paper, the effect of the grain size on sintered Nd-Fe-B based permanent magnets was investigated. In order, the magnets were produced by different milling times at 200 rpm and then vacuum sintered at 1373 K for 60 minutes followed by cooling outside the furnace.

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Mechano-Synthesis, Characterization, and Magnetic ...

Mechano-Synthesis, Characterization, and Magnetic ...

2004-11-25 · Cobalt ferrite, CoFe2O4, nanoparticles have been obtained from pre-prepared layered double hydroxide carbonate, LDH-CO3, by mechanical milling. X-ray powder diffraction shows the only product of the milling for 5 h of the LDH-CO3 is cobalt ferrite nanoparticles. Longer-term milling induces particle growth characterized by sharpening of the Bragg peaks and an increase of the blocking ...

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新能源领域-纳米材料工程研究

新能源领域-纳米材料工程研究

2020-10-3 · 1. Effect of processing conditions on the structure and collective magnetic properties of flowerlike nickel nanostructures, Chunhong Gong, Juntao Tian, Jingwei Zhang,* Xuefeng Zhang, Laigui Yu, Zhijun Zhang, Materials Research Bulletin, 2010, 45:682 – 687 2.

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Influence of milling conditions on magnetic properties …

Influence of milling conditions on magnetic properties …

Influence of milling conditions on magnetic properties of Sm/sub 2/Fe/sub 17/N/sub 3/ particles Tajima, S.; Hattori, T.; Kato, Y. Abstract. Publication: IEEE Transactions on Magnetics. Pub Date: November 1995 DOI: 10.1109/20.489700 Bibcode: 1995ITM....31.3701T full text sources. Publisher | ...

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Volume 37,Issue 3,2020 Table of Contents

Volume 37,Issue 3,2020 Table of Contents

The milling force increases gradually with the increase of spindle speed, feed rate, depth and width of milling in cryogenic milling process. In addition, the machined surface quality in cryogenic milling is superior to that in dry cutting process. Fiber fracture, matrix damage and fiber matrix debonding are main material removal mechanisms.

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Effect of the milling time on the magnetic properties …

Effect of the milling time on the magnetic properties …

Abstract. The effect of the wet milling time on the magnetic properties of powder compositions consisting of the hard magnetic Sm 2 Fe 17 N x (x = 2.9–3.0) nitride and a rapidly quenched Nd 9.6 Fe 76.3 Co 4.3 Zr 3.4 B 6.4 (at %) alloy, which are taken in different mass proportions, is studied. The compositions containing no more than 20 wt % alloy are found to exhibit a substantial increase ...

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Magnetic Property Changes by Machining Ferromagnetic …

Magnetic Property Changes by Machining Ferromagnetic …

2017-1-19 · boundary conditions influence the magnetic surface properties of a workpiece. This paper aims to demonstrate systematical effects and to analyze influences on these effects. Fig. 1. Required For this reason, machined steel 1.7225 with varied predefined machining parameters was analyzed. Here, milling

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Project PN-II-ID-PCE-2012-4-0470 Interphase Exchange ...

Project PN-II-ID-PCE-2012-4-0470 Interphase Exchange ...

2017-1-31 · III.3. Influence of Mechanical Milling on the Physical Properties of SmCo 5 /Fe 65 Co 35 type Hard/Soft Magnetic Nanocomposite [17] ..... 16 III.4. Effect of Milling and Annealing Conditions on the Structural and Magnetic Properties of the Nd 2 Fe

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MMG Publications

MMG Publications

The correlation between microstructure and magnetic properties in Nd-Fe-B materials Yin X, 1992. An investigation into the structure and magnetic properties of some transition metal-metalloid alloys Devlin E, 1991. The high temperature magnetic properties of YBa …

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Influence of milling conditions on magnetic properties …

Influence of milling conditions on magnetic properties …

Ball milling conditions were examined for the preparation of fine Sm/sub 2/Fe/sub 17/N/sub 3/ particles. The milling process with high ball/bottle volume r Influence of milling conditions on magnetic properties of Sm/sub 2/Fe/sub 17/N/sub 3/ particles - IEEE Journals & Magazine

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Acta Metall Sin

Acta Metall Sin

The influence of Nd content on the structure and magnetic properties of the as-prepared and post annealed films were investigated by XRD, SEM, VSM and AFM/MFM. Magnetic measurements at room temperature show that the compositional variation of the perpendicular anisotropy energy ( K u ) exhibits a broad peak around x =5.2 with maximum of K u =(80±5) kJ/m 3 for the as-prepared Nd-Co …

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Microstructure and Magnetic Properties of Bulk ...

Microstructure and Magnetic Properties of Bulk ...

2017-5-6 · Rigaku DMax rotating anode X-ray diffraction (XRD) system with a Cu target. Conditions for XRD were the following; tube: Cu Kα = 0.1541 nm, filter: Ni, accelerating voltage: 40 kV, current: 20 mA and two-theta scan range: 5°–90°. The magnetic properties of the powders were measured with a

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Evolution of Magnetic Properties in Ferrites: Trends of ...

Evolution of Magnetic Properties in Ferrites: Trends of ...

2016-10-7 · Microstructure of magnetic materials greatly influences the performance of magnetic properties, and sintering has been used as an agent to tailor the microstructure of these magnetic materials especially ferrites. Nanostructured ferrites prepared by high-energy milling method are often inherently unstable owing to their small constituent sizes, non-equilibrium cation distribution, …

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Mechanochemical Synthesis of Iron and Cobalt …

Mechanochemical Synthesis of Iron and Cobalt …

1 Introduction. Magnetic nanoparticles are used in a variety of applications, for example, catalysis, biomedicine, optoelectronics, magnetic recording media, magnetic fluids, and rechargeable batteries. 1-3 Such nanoparticles are useful in areas such as the separation of catalysts, nuclear waste, biochemical products, and biological entities such as cells. 1, 4 For example, an advantage of ...

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Mechanical Milling: a Top Down Approach for the …

Mechanical Milling: a Top Down Approach for the …

2012-2-3 · Synthesis of nanomaterials by a simple, low cost and in high yield has been a great challenge since the very early development of nanoscience. Various bottom and top down approaches have been developed so far, for the commercial production of nanomaterials. Among all top down approaches, high energy ball milling, has been widely exploited for the synthesis of various nanomaterials, nanograins ...

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