In this paper, Fe soft magnetic composites (SMCs) coated with MnO 2 were prepared successfully by ball milling and following spark plasma sintering. The effect of MnO 2 content on microstructure and magnetic properties for the Fe/MnO 2 SMCs was investigated in detail. The analysis results show that a uniform MnO 2 coating layer can be formed on the …

Soft magnetic composites (SMC) are consolidated ferromagnetic powders surrounded by an electrically insulating film that is manufactured through a process similar to powder metallurgy [1]. ... study on the mechanical strength of soft magnetic composite prepared by ultra-high aspect ratio flake iron powder using ball-milling process. Koki Ohba a ...

This study uses ball milling at various milling times to create an aluminum matrix composite (AMC) reinforced with magnetite nanoparticles. The milling time was optimized to create an AMC with favorable mechanical and magnetic properties, and its effect on magnetism, microstructure, and hardness was studied.

Request PDF | Separable and reactivated magnetic mZVAl/nFe3O4 composite induced by ball milling for efficient adsorption-reduction- sequestration of aqueous Cr(VI) | Destruction of the dense oxide ...

The room-temperature magnetic properties of ball-milled strontium hexaferrite particles consolidated by spark-plasma sintering are strongly influenced by the milling time. Scanning electron ...

Ball milling is a simple and convenient method for the preparation of powders, alloys, and composite materials. This technique results in products having very fine particle …

Another Fe-biochar composite was synthesized via ball milling and achieved 97.8% removal of Cr(VI) in acidic conditions (Wang et al., 2020b). Ball milling was found to …

In this study, we examined the optimal pre- and post-annealing conditions for soft magnetic composites (SMCs) using amorphous flake powders produced through ball milling of amorphous Fe-Si-B ribbons, leading to enhanced …

In this study, a novel magnetic poly (tetrafluoroethylene, PTFE) (Fe@PTFE) piezoelectric catalytic material was successfully prepared by a simple ball milling treatment. …

Another work analyze the ball milling effect and the microstructure on a composite alloy of Eurofer97 steel reinforced 3 wt.% of NbC. Likewise, it was tested the effect of high energy ball milling on the morphology, microstructure, and properties of TiC particle-reinforced 6005A aluminum alloy matrix composite with 1.5, 3, and 6 wt.% .

Carbon nanotubes (CNTs) reinforced FeCo alloys were produced by high energy ball-milling and spark plasma sintering (SPS). CNTs distribution in the FeCo alloy was gradually improved as ball-milling time increased, with a uniform dispersion achieved after 6 h ball-milling. Tensile tests demonstrated that, as the ball-milling time increased, the yield strength …

Regarding the application of wet ball milling for the fabrication of composite cathodes for SSBs, Zagórski et al. ... ball milling and magnetic stirring. Concerning ball milling, LFP and Super C65 carbon black were transferred into a zirconia ball mill jar together with a PEO-LiTFSI solution and NMP solvent. The materials were milled at 200 ...

The ball milling medium was a 3 mm small stainless steel ball, with the ball material ratio of 15:1, and the rotation speed of the ball mill was 200 r/min. The milling time was set as 1, 2 and 4 h. (b) The composite powder as-prepared was annealed in an argon atmosphere at 600 °C for 2 h to eliminate the internal stress.

A novel Fe-PTFE magnetic composite prepared by ball milling for the efficient degradation of imidacloprid: Insights into interaction mechanisms based on ultrasonic …

Another Fe-biochar composite was synthesized via ball milling and achieved 97.8% removal of Cr(VI) in acidic conditions ... the magnetic ball-milled biochar showed an excellent performance in the dye adsorption with increased aromatic C = C bonds and enhanced π-π and electrostatic interactions.

In this work, Fe 2 SiO 4 /SiO 2 coated Fe-Si soft magnetic composites (SMCs) have been prepared successfully via ball milling Fe-6.5wt%Si/Fe 3 O 4 composite particles combined with subsequent spark plasma sintering (SPS) process. The formation mechanism of Fe 2 SiO 4 /SiO 2 insulating layer and effect of Fe 3 O 4 coating content on the microstructure …

Insights on ball milling enhanced iron magnesium layered double oxides bagasse biochar composite for ciprofloxacin adsorptive removal from water ... removal by a novel ball milled FeO-biochar composite: Role of biochar electron transfer capacity under high pyrolysis temperature. Chemosphere ... Although magnetic modification has potential for ...

Shan et al. achieved biochar/activated carbon-Fe 3 O 4 composite through ball milling to avoid the formation of Fe 2 O 3 which yields materials ... J. et al. Magnetic ball-milled FeS@biochar as ...

Solid-state 13 C and 29 Si nuclear magnetic resonance (NMR) experiments were conducted on a 400 MHz NMR spectrometer. The 13 C NMR spectra were acquired at 100.63 MHz, with ... After undergoing the ball-milling process using 5 mm zirconium beads, the BMS1 sample displayed a higher CA of 120.7°, indicating an enhancement in its hydrophobicity ...

Ball milling is a simple and convenient method for the preparation of powders, alloys, and composite materials. This technique results in products having very fine particle size and grain size. Anisotropic magnetic particles with nanosized grain structures can be fabricated by ball-milling under a magnetic field . The structural and magnetic ...

Ultrafine Sm 2 Fe 17 N 3 powders obtained via ball or airflow milling usually exhibit defects and localized demagnetization owing to their irregular morphologies. Therefore, this study employs the ultrasonic spray pyrolysis–reduction diffusion method in conjunction with CaO coating to control the precursor size of the oxides and obtain a size-controllable nearly spherical …

Planar anisotropy carbonyl iron (PACI) particles were prepared from commercial spherical carbonyl iron particles through a high performance ball-milling technique. The paraffin composites with orientation of shape anisotropy field for these PACI particles were obtained by applying an external magnetic field during the fabrication process.

In this study, pure iron powders were processed with ball-milling to obtain the ultra-thin powder and prepare the SMC. The effect of aspect ratio of the powder on the mechanical …

milling. Tensile tests demonstrated that, as the ball-milling time increased, the yield strength increased in the composites; a maximum 50 % relative increase in tensile strength due to the addition of CNTs was achieved after 1 h ball-milling, which then decreased with further ball-milling. The elongation to fracture was significantly increased ...

SrFe 12 O 19 /CoFe 2 O 4 nanostructured magnetic composites were fabricated by ball milling. • Magnetic interactions are strongly influenced by the frequency of milling. • Competition between exchange coupling and dipolar interactions are observed. • 20 % increasement of (BH) max is achieved for certain conditions of manufacturing.

In this work, an iron-based soft magnetic composite coated with a composite layer of sodium silicate and nano ferroferric oxide was prepared by two-step ball milling. The presence of sodium silicate reduces the eddy current loss which increases the resistivity and makes the distribution of Fe 3 O 4 on the surface more uniform.

We report the magnetoelectric (ME) response in 0–3 particulate composites of Ba 0.9 Sr 0.1 TiO 3 –Ni 0.9 Zn 0.1 Fe 1.98 O 4−δ assisted by high energy ball milling. Dielectric and magnetic characterizations are found to follow combination and dilution properties, respectively.

Fe 3 O 4 /Fe flaky composites were prepared by a simple one-step ball-milling process.. The magnetization of Fe 3 O 4 /Fe composites has been improved compared with raw Fe 3 O 4.. The optimal RL value of Fe 3 O 4 /Fe composites can reach −25.9 dB at 16.1 GHz under 1.25 mm.

Carbon nanotubes (CNTs) reinforced FeCo alloys were produced by high energy ball-milling and spark plasma sintering (SPS). CNTs distribution in the FeCo alloy was gradually improved as ball-milling time increased, with a uniform dispersion achieved after 6 h ball-milling.Tensile tests demonstrated that, as the ball-milling time increased, the yield strength …

The effect of high energy ball milling on the structure and magnetic properties of SmCo 5 –x%FeNi (x: 5,15), magnetically hard–soft phase composites, has been investigated as a function of composition ratio, ball milling time, and annealing temperature using x-ray diffraction and room temperature magnetometry.The milling resulted in decomposition of …