surfactant assisted high energy ball mill

Coercivity and magnetization reversal mechanism in

In this paper, the recoil loops of SmCo6.6Nb0.4 nanoflakes prepared by the surfactant-assisted high energy ball milling (SA-HEBM) were systematically studied. The recoil loop openness was observed ...

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Evolution of Nd 2Fe 14B nanoparticles magnetism during surfactant

The aim of this work was the fabrication of Nd2Fe14B nanoparticles, through a "top-down" technique like surfactant-assisted high-energy ball-milling, and the monitoring of the milling-process ...

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High anisotropic NdFeB submicro/nanoflakes prepared by surfactant

To obtain ultrafine powder with an enhancement of coercivity, the surfactant-assisted high energy ball milling was carried out for 5, 20, 40 and 70 h. SEM morphologies of ball milled Nd(FeMo)12N1.52 for varied milling times …

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(PDF) A surfactant-assisted high energy ball …

We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this …

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Surfactant Removal Study for Nano-Scale SmCo5 Powder Prepared by High

Amorphous Ni79.2Nb12.5Y8.3 and Ni81.3Nb6.3Y12.5 nanoparticles were synthesized using cryogenic mechanical alloying followed by surfactant-assisted high energy ball milling (SA-HEBM).

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Synthesis and characterization of FePt nanoparticles by high energy

The milling time ranged between 1 and 10 h, and was carried out in a SPEX MM400 high energy ball mill. For the wet milling procedure, the Pt and Fe elemental powder were milled under the presence of surfactants and solvent. Oleic acid (90% tech.) and oleyl amine (70% tech.) were used as surfactants and hexane as a solvent.

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Effect of Surfactant Molecular Weight on Particle …

Surfactant-assisted high energy ball milling (HEBM) is a widely used technique for producing nanostructured magnetic materials with oleic acid (OA) being the most commonly utilized surfactant reported in literature to date. No conclusive explanation has been presented for the wide use of OA and only a few studies have deviated from …

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SURFACTANT-ASSISTED BALL MILLING: A NOVEL ROUTE …

surfactant assisted high energy ball milling has been exploited for the synthesis of various nanomaterials, nanograins, and nanocomposites from solid bulk materials. …

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Fabrication of remarkably magnetic-property-enhanced …

DOI: 10.1016/j.jmmm.2019.166191 Corpus ID: 212976651; Fabrication of remarkably magnetic-property-enhanced anisotropic Sm2Fe17Nx nanoflakes by surfactant assisted ball milling at low temperature

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Anisotropic SmCo5 nanoflakes by surfactant-assisted high energy ball

Crystallographically anisotropic SmCo5 nanoflakes were fabricated directly by one-step surfactant-assisted high energy ball milling (HEBM) of Sm17Co83 ingot powders for 5 h in heptane and oleic acid (OA) without preprocessing or further annealing. The SmCo5 nanoflakes have a strong [001] out-of-plane texture. The thickness of …

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Surfactant Assisted Ball Milling: A Simple Top down …

Among all the approaches, high energy ball milling with surfactant has been widely exploited for the synthesis of various nanomaterials, nanograins, nanocomposites from solid state. Self-assembled structures of surfactants provide a valuable tool for the controlled formation of nanostructure.

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Preparation of Nd–Fe–B nanoparticles by surfactant-assisted ball

Recently, rare-earth nanoparticles and nanoflakes fabricated by surfactant-assisted high-energy ball milling (HEBM) have received great attentions for their high room-temperature magnetic ...

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Magnetic Evolution of PrCo5 Nanoflakes Obtained by Surfactant-Assisted

In this work, PrCo 5 nanoflakes were obtained by a top-down approach using surfactant-assisted high-energy ball mill (SABM) technique. The coarse alloy powders were subjected to SABM employing ...

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Nitrogenation and Subsequent Surfactant-Assisted High Energy Ball

Sm2Fe17 melt-spun powders were subjected to the nitriding process and followed by surfactant-assisted high-energy ball milling (HEBM). The microstructures, morphology and magnetic properties were ...

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Sm2Co17 nanoparticles synthesized by surfactant-assisted high energy

Surfactant-assisted high energy ball milling (HEBM) is usually used for the preparation of separated Sm–Co-based hard nanoparticles. ... two-step or a multi-step ball milling with low energy in a roller and high energy in a SPEX 8000M mill. The ball-to-powder weight ratio was 10:1. Hetpane (99.8%) was used as the milling medium

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A surfactant-assisted high energy ball milling …

We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this …

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Anisotropic SmCo5 nanoflakes by surfactant-assisted high energy ball

Crystallographically anisotropic SmCo 5 nanoflakes were fabricated directly by one-step surfactant-assisted high energy ball milling (HEBM) of Sm 17 Co 83 ingot powders for 5 h in heptane and oleic acid (OA) without preprocessing or further annealing. The SmCo 5 nanoflakes have a strong [001] out-of-plane texture. The thickness of …

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Sm2Co17 nanoparticles synthesized by surfactant-assisted high energy

Surfactant-assisted high energy ball milling (HEBM) is usually used for the preparation of separated Sm–Co-based hard nanoparticles. ... Stirred ball mill grinding is advantageous for ...

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Structure and microwave properties of Fe powders prepared by surfactant

SEM images of the particles prepared by milling without surfactant (top) and surfactant-assisted ball milling (bottom). X-ray diffraction patterns of the powders are shown in Fig. 2 . The measured XRD patterns were quantitatively analyzed with the use of programs for X-ray analysis of polycrystals [30] based on the Rietveld refinement.

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Journal of Magnetism and Magnetic Materials

Anisotropic magnetic SmCo 5 nanoflakes have been fabricated by surfactant-assisted high-energy ball milling (HEBM) processes with different milling times. The influence of the milling time on the particle size distribution, morphology and magnetic properties of these SmCo 5 particles was investigated systematically. It is …

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SURFACTANT-ASSISTED BALL MILLING: A NOVEL …

2 M. Ullah, Md.E. Ali and Sh.B.A. Hamid a suitable medium in a high energy ball mill where the balls roll down the surface of the chamber in a series of parallel layers and energizes the powder

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(PDF) Surfactant-assisted ball milling: A novel …

Surfactant-assisted high energy ball milling (HEBM) is a widely used technique for producing nanostructured magnetic materials …

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Sm2Co17 nanoparticles synthesized by surfactant-assisted high energy

Surfactant-assisted high energy ball milling is another efficient technique to obtain hard magnetic Sm–Co nanoparticles. ... two-step or a multi-step ball milling with low energy in a roller and high energy in a SPEX 8000M mill. The ball-to-powder weight ratio was 10:1. Hetpane (99.8%) was used as the milling medium and oleic acid (99% …

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NITROGENATION AND SUBSEQUENT SURFACTANT …

Sm2Fe17 melt-spun powders were subjected to the nitriding process and followed by surfactant-assisted high-energy ball milling (HEBM). The microstructures, morphology …

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Corrigendum: Anisotropic bonded magnets fabricated via surfactant …

YCo5 alloy is processed by surfactant-assisted high-energy ball milling. Oleic acid is used as the surfactant and is 20% of the starting powder. ... In this work, PrCo 5 nanoflakes were obtained by a top-down approach using surfactant-assisted high-energy ball mill (SABM) technique. The coarse alloy powders were subjected to SABM …

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[PDF] Magnetic nanoparticles produced by surfactant …

Nanoparticles of Fe and Nd−Fe−B alloy with sizes less than 20 nm have been successfully fabricated by a high-energy ball-milling process in the presence of …

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Surfactant Assisted Ball Milling: A Simple Top down …

Crystallographically anisotropic SmCo5 nanoflakes were fabricated directly by one-step surfactant-assisted high energy ball milling (HEBM) of Sm17Co83 ingot …

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ChemInform Abstract: Surfactant Assisted Ball Milling: A …

Anisotropic magnetic SmCo5 nanoflakes have been fabricated by surfactant-assisted high-energy ball milling (HEBM) processes with different milling times.

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NITROGENATION AND SUBSEQUENT SURFACTANT-ASSISTED HIGH ENERGY BALL

Sm 2 Fe 17 melt-spun powders were subjected to the nitriding process and followed by surfactant-assisted high-energy ball milling (HEBM). The microstructures, morphology and magnetic properties were also investigated by X-ray diffractometer, scanning electron microscope and vibrating sample magnetometer.

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Sm--Co hard magnetic nanoparticles prepared by …

The surfactants used are absorbed by the fresh surface of particles crushed during the ball milling, leading to a surface modiﬁcation for the ground particles. Experimental results show that the function of the surfactants is multifold: (1) The surfactants prevent the re-welding of the crushed particles during the ball milling; thus ﬁne ...

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