Surfactant-assisted. High energy ball milling. 1. ... 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 …
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 stages with respect to the structure and magnetism.
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 ...
FePt nanoparticles were prepared by high energy ball milling (HEBM) in two different ways. In the first one, elemental powders were mixed and milled whereas in …
Heptane (99.8%) was used as the milling medium and octanoic acid (99%) as the surfactant. The amount of surfactant used in the high-energy ball milling (HEBM) experiments was 15, 30, 50 and 100 wt.% by the weight of the starting powder. For a comparison, the amount of oleic acid used as surfactant to ball milling SmCo 5 was 15 …
WEBIn the present study, nano-flake SmCo5 powders with typical flake thickness of 300 nm were prepared by 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 method, a combination of two surfactants, such as...
Magnetic nanocomposites SmCo5/α-Fe were synthesized mechanically by high-energy ball milling (HEBM) from SmCo5 and 5%wt. of α-Fe powders. The X-ray diffraction analysis reveals the hexagonal 1:5 ...
Recently reported Sm 2 (Co 0.8 Fe 0.2) 17 nano-flakes were prepared by surfactant-assisted high-energy ball milling. And a coercivity value of 2.3 kOe was achieved. Wang D et al. [12] successfully produced the nano-flakes of anisotropic Sm 2 Co 17 with an out-of-plane texture along the [00l] direction. They utilized a combination of …
We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this method, a combination of two surfactants, such as oleic acid ...
To overcome this, surfactant assisted ball milling can be used to reduce particulate surface energy by forming thin organic films around the particulates [353]; with various surfactants employed ...
We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this method, a combination of two surfactants, such as oleic acid and …
FePt nanoparticles were prepared by high energy ball milling (HEBM) in two different ways. In the first one, elemental powders were mixed and milled whereas in the second one the milling was performed in the presence of oleyl amine and oleic acid as surfactants and hexane as a solvent.
In the present study, nano-flake SmCo5 powders with typical flake thickness of 300 nm were prepared by high energy ball milling using valeric acid as a surfactant.
Crystallographically anisotropic SmCo 5 nanoflakes were fabricated directly by one-step surfactant-assisted high energy ball milling (HEBM) of Sm 17 Co 83 ingot …
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 …
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 ...
We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this method, a combination of …
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 stages with respect to …
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.
surfactant assisted high energy ball milling has been exploited for the synthesis of various nanomaterials, nanograins, and nanocomposites from solid bulk materials. Promising results have been obtained in terms of nanostructure assembly, micro/nano-environment, surface functionalities and dispersion.
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.
In high-energy ball milling, plastic deformation, cold-welding and fracture predominantly contribute to bring a change in size, shape and microenvironment of nanoparticles. This review systematically presented the basic concept and applications of sur- factant assisted mechanical milling in the synthesis of various nanomaterials and nanocomposites.
Highlights CeCo 5 permanent magnetic alloy has been processed by surfactant assisted high energy ball milling (HEBM). The particles show a flake-like morphology with several μm in length and width and tens nm in thickness. The flakes are crystallographic and magnetic anisotropic and the c-axes, also the easy magnetization …
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 ...
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
We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this method, ... Characterization and magnetic behavior of fe and Nd-Fe-B nanoparticles by surfactant-capped high-energy ball mill. H. Cha Young-Hwan Kim Chang Woo Kim and Hae Woong Kwon Y. Kang.
We herein exploit the advantages of surfactant assisted-high energy ball milling (SA-HEBM) for the processing of Mn–Al alloy. In this method, a combination of two surfactants, such as oleic acid and oleylamine, was used along with a …
A correlation between the coercivity and internal strain has been established for as-milled τ-phase Mn 51 Al 46 C 3 flakes obtained by surfactant-assisted ball milling (SABM) . These researchers reported that the high coercivity up to 266.2 kA/m was accompanied by a relatively large residual strain, due to the domain wall pinning effect …
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نشانی: شماره 1688، جاده شرقی گاوک، منطقه جدید پودونگ، شانگهای، چین.
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