Magnetic Field Assisted Ball Milling
Anisotropic nanostructured SmCo5 bonded magnets fabricated by magnetic
In present study, surfactant assisted ball-milling method was applied to prepare SmCo 5 nanoflakes, which were then magnetically aligned and warm compacted with a liquid binder to make bulk anisotropic SmCo 5 bonded magnets. Warm compaction with magnetic-field-assisted liquid phase processing can decrease the viscosity of the binder to enhance …
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Improved efficiency for preparing hard magnetic Sm2Fe17NX powders …
The plasma assisted ball milling technology is employed for the preparation of hard magnetic Sm 2 Fe 17 N X magnetic powders for the first time. Using conventional high-energy ball milling, Sm 2 Fe 17 alloy powders can only be prepared from Sm 2 Fe 17 alloy precursor but not from Sm and Fe metal precursor. However, by the plasma-assisted ball …
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Magnetic Evolution of PrCo5 Nanoflakes Obtained by Surfactant-Assisted
Anisotropic magnetic SmCo5 nanoflakes have been fabricated by surfactant-assisted ball milling (SABM) using hardened steel balls of one of the following sizes: 4, 6.5, 9.5 and 12.7 mm in diameters.
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Anisotropic Sm2Co17 nano-flakes produced by surfactant and magnetic
DOI: 10.1016/S1002-0721(12)60287-7 Corpus ID: 136358113; Anisotropic Sm2Co17 nano-flakes produced by surfactant and magnetic field assisted high energy ball milling @article{Wang2013AnisotropicSN, title={Anisotropic Sm2Co17 nano-flakes produced by surfactant and magnetic field assisted high energy ball milling}, author={Da-peng …
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Evolution of Nd 2Fe 14B nanoparticles magnetism during surfactant
A magnetic field-assisted ball milling has been employed for the preparation of SmCo5 + 10 wt% Fe nanocomposite powders in the presence of oleic acid as surfactant. Milling experiments were also ...
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Anisotropic Bonded Magnets Fabricated via Surfactant-Assisted Ball …
Anisotropic bonded magnets are fabricated by surfactant-assisted ball milling in a magnetic field and magnetic field alignment of the milled chip-like nanoparticles of the Sm–Co and Nd–Fe–B ...
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The synthesis of Cu/Fe/Fe3O4 catalyst through the aqueous solution ball
In this paper, nano-magnetic Cu/Fe/Fe3O4 catalyst was prepared by a new aqueous solution ball milling method assisted by high-frequency electromagnetic field at room temperature.
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Sm–Co hard magnetic nanoparticles prepared by surfactant-assisted ball
Hard magnetic nanoparticles based on the Sm(2)Co(17) and SmCo(5) systems have been successfully produced using a surfactant-assisted ball milling technique.
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Recent Developments on the Synthesis of Nanocomposite …
This review is focused on the topical developments in the synthesis of nanocomposites using the simplest top-down approach, mechanochemical milling, and the related aspects of the interfacial interactions. Milling constraints include time duration of milling, ball size, the ball-to-sample content proportion, rotation speed, and energy that took part in a …
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Anisotropic Sm2Co17 nano-flakes produced by surfactant and magnetic …
Anisotropic Sm 2 Co 17 flakes with high aspect ratio were prepared by magnetic field assisted high energy ball milling in the presence of heptane and oleic acid (OA). The thickness of flakes was only tens of nanometers. Coercivity of 3 kOe was achieved in the nano-flakes. Most interestingly, the magnetic crystalline anisotropy of Sm 2 Co 17 flakes was …
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(PDF) Multiwalled Carbon Nanotube-Coated SmCo5/Fe Magnetic …
Nanostructured anisotropic hard magnetic particles of SmCo5/Fe coated with multiwalled carbon nanotubes (MWNTs) were prepared by magnetic field-assisted ball milling technique.
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Improved efficiency for preparing hard magnetic Sm
The plasma assisted ball milling technology is employed for the preparation of hard magnetic Sm 2 Fe 17 N X magnetic powders for the first time. Using conventional high-energy ball milling, Sm 2 Fe 17 alloy powders can only be prepared from Sm 2 Fe 17 alloy precursor but not from Sm and Fe metal precursor. However, by the plasma-assisted ball …
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Ball milling as a way to produce magnetic and …
Ball milling (BM) is a well-established technique for producing different materials in powder shape. Dynamical analysis of BM helps to optimize the process through simple but …
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SmCo 5 /Fe nanocomposite magnetic powders processed by magnetic field
The flake-like structures may be due to the individual particle after magnetic field-assisted ball milling has developed anisotropy characteristics. The XRD patterns for the field-milled SmCo5 /Fe powders without and with surfactant are shown in figure 4. The XRD analysis revealed that all the powder samples comprised SmCo5 and Fe as the ...
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Anisotropic Sm2Co17 nano-flakes produced by surfactant and magnetic
Anisotropic Sm2Co17 flakes with high aspect ratio were prepared by magnetic field assisted high energy ball milling in the presence of heptane and oleic acid (OA). The thickness of flakes was only ...
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Anisotropic PrCo Nanoparticles by Surfactant-Assisted Ball Milling
The high coercivity of 26.2 kOe for SmCo5 nanoflakes are obtained by multistep (three steps) surfactant-assisted ball milling. The magnetic properties, phase structure and morphology are studied ...
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Magnetic nanoparticles produced by surfactant-assisted ball …
A magnetic field-assisted ball milling has been employed for the preparation of SmCo5 + 10 wt% Fe nanocomposite powders in the presence of oleic acid as surfactant. Milling …
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SmCo5/Fe nanocomposite magnetic powders processed …
For field-induced ball milling, blocks of Nd2Fe14B magnets were fixed around the vial to create a radial magnetic field inside the vial to synthesize anisotropic powders during milling. The …
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Microstructure and magnetic properties of surfactant …
With increasing ball milling time and nitriding temperature, the remanence (M r) and coercivity (H c) of the alloy powder increase first and then decrease. The alloy powder obtained from ball milling for 3 h after nitriding at 475 ℃ for 3 h, resulting in M r was 44.43 …
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Microstructure and magnetic properties of MnBi alloys with …
Fig. 3 (d) shows the dependence of magnetization measured at magnetic field of 2.5 T (M 2.5 T) and coercivity H ci on the ball milling time. The magnetization decreases with increasing the milling time and this can be attributed to the decomposition of LTP MnBi in ball-milling process, in agreement with the XRD analysis (see Fig. 1 ) and the ...
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SmCo5/Fe nanocomposite magnetic powders processed …
SmCo5/Fe nanocomposite magnetic powders processed by magnetic field-assisted ball milling Figure 3. SEM micrographs of the field-milled SmCo 5/Fe nanocomposite powders collected after 10h of milling time. (a) Without and (b) with surfactant.of 20kOe. 57Fe Moss experiments were performed¨ on 10h milled powders at room temperature in transmission
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An advancement in the synthesis of unique soft magnetic
Very recently FeCoNiCuZn high entropy alloy system has been reported by ball milling 9 ... magnetic field is injected using a co-planar wave guide into the thin film while a dc …
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Magnetic nanoparticles produced by surfactant-assisted ball milling
Nanoparticles of Fe, Co, FeCo, SmCo, and NdFeB systems with sizes smaller than 30 nm and narrow size distribution have been successfully prepared by ball milling in the presence of surfactants and organic carrier liquid. It has been observed that the nanoparticles prepared by milling Fe and FeCo powders were close to spherical in their shapes, whereas …
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Anisotropic bonded magnets fabricated via surfactant-assisted ball
Anisotropic bonded magnets are fabricated by surfactant-assisted ball milling in a magnetic field and magnetic field alignment of the milled chip-like nanoparticles of the Sm–Co and Nd–Fe–B materials. It is found that the application of magnetic fields during the ball milling strengthens the anisotropy of the chips and therefore improves ...
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Study on the Magnetic Characteristics of Anisotropic …
texture, magnetic field-assisted ball-milling, and melt-spinning at low wheel speeds have induced texture in Sm-Co alloys either with low degree of texture or with a moderate degree of texture resulting in a non-unidirec-tional easy axis [22-25]. This paper presents the preparation and characterization of SmCo 7-type alloys with out-of-plane ...
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Microstructure and magnetic properties of surfactant-assisted ball …
With increasing ball milling time and nitriding temperature, the remanence (M r) and coercivity (H c) of the alloy powder increase first and then decrease. The alloy powder obtained from ball milling for 3 h after nitriding at 475 ℃ for 3 h, resulting in M r was 44.43 Am 2 /kg, H c was 0.434 T, and saturation magnetization (M s) was 74.89 Am ...
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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 bonded magnets fabricated via surfactant-assisted ball …
Anisotropic bonded magnets are fabricated by surfactant-assisted ball milling in a magnetic field and magnetic field alignment of the milled chip-like nanoparticles of the Sm–Co and Nd–Fe–B materials. It is found that the application of magnetic fields during the ball milling strengthens the anisotropy of the chips and therefore improves the alignment. For SmCo5 …
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Structural and magnetic properties of Mn50Al46Cu4C3
Preparation of high performance Mn-Al based anisotropic magnetic powders with high content of magnetic phase is a challenging task due to the poor stability of the ι-MnAl phase. In this work, Mn50Al46Cu4C3 flakes with a micron, submicron and nanosize thickness have been fabricated by surfactant assisted ball milling.
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(PDF) Crystallographic alignment evolution and magnetic properties …
The microstructure, crystal structure, and magnetic properties were studied for Nd-Fe-B nanoflakes prepared by surfactant-assisted high-energy ball milling (HEBM) with heptane and oleic acid as ...
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