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 milling, Sm 2 Fe 17 …
Effect of milling on the structure and magnetic
Request PDF | On Mar 1, 2016, K.P. Su and others published Effect of milling on the structure and magnetic properties in Mn54Al46 flakes prepared by surfactant-assisted ball milling | Find, read ...
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 vital part …
(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 ...
(PDF) Permanent Magnetic Nanoparticles and Nanoflakes Prepared …
Effect of ball milling parameters, types, amount of surfactants and external magnetic field on the morphology, structure and magnetic properties of permanent magnetic materials are reviewed.
Microstructure and magnetic properties of MnBi alloys with …
MnBi alloys with high content of low temperature phase (LTP) MnBi and excellent magnetic properties were prepared by surfactant assistant ball milling (SABM), using annealed ribbons as precursors.
The effect of milling conditions on the magnetic and …
Magnesium diboride, MgB2, is known to be an important high-temperature superconductor material. High-energy ball milling with subsequent low-temperature sintering remains an attractive solid-state method for its synthesis. One main optimization parameter of this method is to ensure a balance between cold welding and fracturing at the milling stages. …
Processing and characterization of Nd2Fe14B microparticles …
The synthesis of hard magnetic nanoparticles based on the Nd2Fe14B system has been studied by means of surfactant-assisted ball milling technique. The XRD results show that, in the range of milling time employed (5, 10 and 20 h), a majority of Nd2Fe14B phase was detected in the nanoparticles, indicating that no oxidation took place during milling. Möss …
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.
Synthesis of FeCoNiCuZn single-phase high-entropy alloy by …
@article{Yingzhe2020SynthesisOF, title={Synthesis of FeCoNiCuZn single-phase high-entropy alloy by high-frequency electromagnetic-field assisted ball milling}, author={Zhang Yingzhe and Chen Yudao and Qin Qingdong and Li Wei}, journal={Journal of Magnetism and Magnetic Materials}, year={2020}, volume={498}, pages={166151}, url={https://api ...
Structure and size-dependent properties of NdFeB …
surfactant-assisted ball milling and magnetic-field processing Narayan Poudyal, Van Vuong Nguyen, Chuan-bing Rong et al.-Recent citations Spin reorientation temperature of ultrafine and nanostructured Nd2Fe14B particles obtained by surfactant-assisted ball milling Santosh K. Pal et al-Preliminary Quality Control of Magnetic
Ultrathin SmCo5 nanoflakes with high-coercivity prepared by …
In this articles, a novel method of the solid particle (NaCl) and surfactant co-assisted ball milling (SPSABM) are used for preparing the ultrathin rare-earth permanent …
(PDF) Multiwalled Carbon Nanotube-Coated SmCo 5 /Fe Magnetic …
Consequently, many efforts have been made to transfigure the milling process through introducing either surfactant15 or magnetic field16 during conventional ball milling (referred as surfactant- or magnetic field-assisted ball milling) to achieve anisotropic hard magnetic particles with nanosized grains.
Oxidative Magnetic Modification of Pristine Biochar Assisted by Ball
Ball-milling assisted K 2 FeO 4 modification succeeded in efficiently oxidizing pristine biochar and impregnating magnetic γ-Fe 2 O 3 within a short time. Various oxygen-containing groups such as –OH, C=O, and C-O-C were introduced with nonmagnetic iron oxides; meanwhile, the specific surface area and pore volume were significantly enhanced.
Magnetic field-assisted finishing: mechanism, application, …
Magnetic field-assisted finishing (MFAF) technology, as a non-traditional surface finishing technology, has a unique advantage in machining components composed of complex shapes and difficult-to-process materials and has been widely concerned. To date, more than thirty MFAF technologies have been developed; however, there has not been a detailed study …
Improved efficiency for preparing hard magnetic …
The plasma assisted ball milling technology is employed for the preparation of hard magnetic Sm2Fe17NX magnetic powders for the first time. Using conventional high-energy ball milling, Sm2Fe17 ...
Synthesis of FeCoNiCuZn single-phase high-entropy alloy by …
In this study, FeCoNiCuZn single-phase high-entropy alloy powders were synthesized at room temperature for the first time using high-frequency electromagnetic-field assisted ball milling. FeCoNiCuZn was found to be a type of soft magnetic material exhibiting saturation magnetization as high as 65.92 emu/g.
The effect of plasma-assisted ball milling on preparation …
The ball milling efficiency can be improved by the combination of mechanical field and others in field-assisted ball milling, which is the process of introducing other physical fields into the mechanical field of the high-energy ball milling process [34, 35].Calka introduces an electromagnetic field into the ball mill to control the trajectory of the grinding ball through the …
Microstructure and magnetic properties of MnBi powders …
In the case of surfactant assisted low energy ball milling the increase of ball milling duration decreases the average particle size while the particles seem to be more separated.
SmCo5/Fe nanocomposite magnetic powders processed by magnetic field
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 ...
A structural investigation of SmCo5/Fe nanostructured
SmCo5/Fe nanostructured alloys with 20 wt% Fe, obtained by high-energy ball milling of SmCo5 and Fe powders, were investigated by 57Fe M ̈oss spectrometry, x-ray …
A structural investigation of SmCo5/Fe nanostructured
SmCo5/Fe nanocomposite magnetic powders processed by magnetic field-assisted ball milling P Saravanan, R Gopalan, N V Rama Rao et al.-The magnetoresistive properties of Cu Sm Co Fe ribbons R Lardé, J M Le Breton, F Richomme et al.-Recent citations Exchange-Coupling Behavior in SrFe12O19/La0.7Sr0.3MnO3 Nanocomposites Jiba Nath Dahal et al-
Microstructure and magnetic properties of surfactant …
The melt-spinning process combined with surfactant-assisted ball milling (SABM) effectively refined the grain size and eliminated the need for subsequent annealing. Compared to regular …
(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.
Morphology and magnetic properties of CeCo5 submicron …
CeCo5 permanent magnetic alloy has been processed by surfactant assisted high energy ball milling. Heptane and oleic acid were used as the solvent and surfactant, respectively.
Magnetic properties of TbFe2 particles prepared by magnetic field
We have studied the effect of the ball milling with and without the application of magnetic field on the morphology, structure and magnetic properties of TbFe 2 alloy. The magnetic field assisted milled powder exhibits a remarkable improvement in coercivity when compared with the powder milled without the aid of external magnetic field, and consequently …
Correlation between Microstructure and Magnetism in Ball …
So far, SmCo 5-based nanocomposites have been synthesized in an argon atmosphere or by the use of the wet SA-HEBM procedure, usually applied for up to 10 h, and also by magnetic field …
SmCo5/Fe nanocomposite magnetic powders processed …
Many efforts have been made to transfigure the milling process through introducing either surfactant or magnetic field during conventional ball milling (referred to as surfactant— or …
Strong textured SmCo5 nanoflakes with ultrahigh coercivity prepared …
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 ...
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 phase-based chips, …