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Magnetic agglomeration interaction among particles of Nd

It is indicated that the magnetic agglomeration interaction may increase greatly if the gap of the particles decreases as well as α Fe particles exist in Nd Fe B powders, and this may do severe damage to the aligning of the powders. During pressing, a great

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Reversible Magnetic Agglomeration: A Mechanism for ...

Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles Patent Huber, Dale L A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to ...

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Effect of magnetic seeding agglomeration on flotation of

Abstract: Magnetic seeding agglomeration (MSA), i.e., adding magnetic seeds and a low intensity pre-magnetization for fine agglomeration, was applied to the flotation of coal, pyrite and hematite ore slimes.Size analysis and flotation tests highlight that the MSA ...

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Magnetic agglomeration method for size control in

@article{osti_1021904, title = {Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles}, author = {Huber, Dale L}, abstractNote = {A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to ...

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Agglomeration of magnetic nanoparticles: The Journal

2019-3-20 · In contrast, when the agglomeration process was allowed to occur in the presence of an external magnetic field, these branches appeared to be oriented predominantly in one direction. A modified Discrete Element Method was applied to simulate the agglomeration process of magnetic nanoparticles both in the absence and presence of an external ...

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Ultra-low remanence and weak magnetic

will lead to magnetic agglomeration and decrease of specific . surface area, which in turn causes a decrease in specific sur-face area, which inhibits the drug delivery of the material .

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Effect of magnetic seeding agglomeration on flotation of ...

2019-1-21 · Abstract: Magnetic seeding agglomeration (MSA), i.e., adding magnetic seeds and a low intensity pre-magnetization for fine agglomeration, was applied to the flotation of coal, pyrite and hematite ore slimes. Size analysis and flotation tests highlight that the MSA improved flotation recovery and kinetics of pyrite ore while causing some loss in

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Agglomeration and magnetic deinking for office

The agglomeration and magnetic deinking technology is used to remove ink particles in mixed office paper waste. The effects of several factors on deinking efficiency of mixed office waste are ...

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Self-Assembly-Magnetized MXene Avoid Dual

2020-3-19 · Moreover, dynamic magnetic response of the magnetized MXene absorber was first researched by the electron holography analysis. The related key mechanism includes the enhanced magnetic loss, less dual-agglomeration (multilayer MXene itself and magnetic agglomeration), and more interfaces and intrinsic defects for related polarization.

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Agglomeration of magnetic nanoparticles: The Journal

2019-3-20 · In contrast, when the agglomeration process was allowed to occur in the presence of an external magnetic field, these branches appeared to be oriented predominantly in one direction. A modified Discrete Element Method was applied to simulate the agglomeration process of magnetic nanoparticles both in the absence and presence of an external ...

Read More

Magnetic agglomeration method for size control in

@article{osti_1021904, title = {Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles}, author = {Huber, Dale L}, abstractNote = {A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to ...

Read More

Effect of magnetic seeding agglomeration on flotation of ...

2019-1-21 · Abstract: Magnetic seeding agglomeration (MSA), i.e., adding magnetic seeds and a low intensity pre-magnetization for fine agglomeration, was applied to the flotation of coal, pyrite and hematite ore slimes. Size analysis and flotation tests highlight that the MSA improved flotation recovery and kinetics of pyrite ore while causing some loss in

Read More

Reversible Magnetic Agglomeration: A Mechanism for ...

2018-4-26 · We present a method for the synthesis and precise size control of magnetic nanoparticles in a reversible magnetic agglomeration mechanism. In this approach, nanoparticles nucleate and grow until a critical susceptibility is reached, in which magnetic attraction overcomes dispersive forces, leading to agglomeration and precipitation.

Read More

Effect of magnetic seeding agglomeration on flotation of

2014-7-10 · Magnetic seeding agglomeration (MSA), i.e., adding magnetic seeds and a low intensity pre-magnetization for fine agglomeration, was applied to the flotation of coal, pyrite and hematite ore slimes. Size analysis and flotation tests highlight that the MSA improved flotation recovery and kinetics of pyrite ore while causing some loss in selectivity, and in the presences of the polyacrylamide for ...

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Temperature-Switchable Agglomeration of Magnetic

2015-7-8 · Temperature-Switchable Agglomeration of Magnetic Particles Designed for Continuous Separation Processes in Biotechnology. Paulus AS(1), Heinzler R(1), Ooi HW(1), Franzreb M(1). Author information: (1)Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen ...

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Agglomeration - an overview | ScienceDirect Topics

No agglomeration occurs in the combined fluidized bed, much of the CaCl 2 and MgCl 2 can be found in the solids collected by the cyclone. An experiment is designed to obtain mass balance data of Mg before and after reaction. As suggested in Fig. 2, although the content of MgO in the slag is as high as 7.37wt%, the mass amount discharged from reactor approximately equals to the that fed into ...

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Reversible, field induced agglomeration in magnetic ...

1977-10-15 · Reversible agglomeration of magnetic particles (20–300-Å diameter) in a colloidal suspension has been induced by applying various magnetic fields: nonuniform static fields and uniform ac or dc fields of magnitudes from 2.5 to 230 Oe. A sensitive Colpitts oscillator circuit monitored the spatial and temporal variations in magnetization in a ...

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Agglomeration response of nanoparticles in magnetic

2011-3-4 · that, for a given magnetic field, the transmittance would decrease by increasing the volume fraction. Under an applied magnetic field, the variation of transmittance is mainly dependent on the area cov-ered by the droplets of emulsions in the MF film. In other words, a higher volume fraction leads to a greater agglomeration of particles.

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李丘林 - 清华大学 - 深圳国际研究生院 - X-MOL

1、He, YJ, Li, QL, Liu, W, Separating Effect of a Novel Combined Magnetic Field on Inclusions in Molten Aluminum Alloy. Metallurgical And Materials Transactions B, 2012,v43(5),1149-1155. 2、Yecong Han, Qiulin Li, Wei Liu, Yanjie He, Effect of Electromagnetic Vibration on the Agglomeration Behavior of Primary Silicon in Hypereutectic Al-Si Alloy.

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Magnetic Agglomeration Among Nd Fe B Particles

There exists strong magnetic agglomeration among Nd-Fe-B particles. Due to this effect, an applied field even up to 1350 kAm -1 still can not make the loose Nd-Fe-B powders to reach saturated magnetization. SEM images of a little amount of Nd-Fe-B powders were used to illustrate the agglomeration phenomenon. We believe that the general existence of misalignment grains in the magnetic force ...

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Magnetic agglomeration method for size control in

@article{osti_1021904, title = {Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles}, author = {Huber, Dale L}, abstractNote = {A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to ...

Read More

Reversible Magnetic Agglomeration: A Mechanism for ...

2018-4-26 · We present a method for the synthesis and precise size control of magnetic nanoparticles in a reversible magnetic agglomeration mechanism. In this approach, nanoparticles nucleate and grow until a critical susceptibility is reached, in which magnetic attraction overcomes dispersive forces, leading to agglomeration and precipitation.

Read More

magnetic agglomeration - grasdak.co.za

Magnetic agglomeration method for size control in the. Jul 05 2011 0183 32 Magnetic agglomeration method for size control in the synthesis of magnetic by the reversible magnetic agglomeration that leads to

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Effect of magnetic seeding agglomeration on flotation of

2014-7-10 · Magnetic seeding agglomeration (MSA), i.e., adding magnetic seeds and a low intensity pre-magnetization for fine agglomeration, was applied to the flotation of coal, pyrite and hematite ore slimes. Size analysis and flotation tests highlight that the MSA improved flotation recovery and kinetics of pyrite ore while causing some loss in selectivity, and in the presences of the polyacrylamide for ...

Read More

Agglomeration response of nanoparticles in magnetic

2011-3-4 · that, for a given magnetic field, the transmittance would decrease by increasing the volume fraction. Under an applied magnetic field, the variation of transmittance is mainly dependent on the area cov-ered by the droplets of emulsions in the MF film. In other words, a higher volume fraction leads to a greater agglomeration of particles.

Read More

参考文献-An agglomeration induced glassy magnetic state in ...

An agglomeration induced glassy magnetic state in a carbon nanotube/NiO nanocomposite system. S Chattopadhyay, S Jana, S Giri, S Majumdar A series of nanocomposite materials were synthesized using multi-walled carbon nanotubes (MWCNTs) and NiO nanoparticles by varying the concentration of NiO in the MWCNT host matrix.

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Magnetic-field-induced birefringence and particle ...

2009-7-24 · Magnetic-field-induced birefringence and particle agglomeration in magnetic fluids Ziyun Di, Xianfeng Chen,a Shengli Pu, Xiao Hu, and Yuxing Xia Institute of Optics and Photonics, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240,

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Aggregation effects on the magnetic properties of

2019-1-22 · Finally, the influence of agglomeration on magnetic properties and heating efficiency have been studied through changes in the pH or the salt content of the medium, which affects the colloidal stability of nanoparticle dispersions and can be controlled, to some extent, in order to prepare agglomerates of defined average sizes [45, 53]. Inter ...

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Study of agglomeration and magnetic sedimentation

Study of agglomeration and magnetic sedimentation of [email protected] 3 O 4 nanoparticles in water medium. Estudio de aglomeración y sedimentación magnética de nanopartículas de Glutatió[email protected] 3 O 4 en medio acuoso. Wilfredo Marimón-Bolívar a b , Edgar E. González a a ...

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