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Block Magnets with Uniform Core–Shell Microstructure Regenerated from NdFeB Grain Boundary Diffusion Sheet Magnets [PDF]

open access: yesNanomaterials
The grain boundary diffusion (GBD) process is currently the relatively effective method for utilizing heavy rare earth (HRE) elements in NdFeB magnets, especially for magnetic sheets.
Xiangheng Zhuge   +10 more
doaj   +2 more sources

Facile Synthesis of Nd2Fe14B Hard Magnetic Particles with Microwave-Assisted Hydrothermal Method

open access: yesMolecules, 2023
The synthesis of Nd-Fe-B magnetic powders via chemical techniques presents significant promise, but poses challenges due to their inherent chemical instability.
Ling Wang, Xiaofen Xu
doaj   +1 more source

Effects of Fe, Mn Individual Doping and (Fe, Mn) Co-Doping on Ferromagnetic Properties of Co2Si Powders

open access: yesNanomaterials, 2022
Magnetic materials are crucial energy materials that are widely used in day-to-day life. Therefore, the development and study of high-performance magnetic materials are of great significance.
Jiang Zou   +4 more
doaj   +1 more source

FRACTAL ANALYSIS OF THE NANOSTRUCTURE OF A HETEROGENEOUS HIGH COERCITY ALLOY

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The atomic force microscopy was used to obtain images of the nanostructure of components of a heterogeneous intermetallic SmCoCuFeZr compound in a highly coercive state.
E.M. Semenova   +5 more
doaj   +1 more source

Relationship between coercivity and stress of X80 pipeline steel

open access: yesYou-qi chuyun, 2022
The operation environment along the long-distance oil and gas pipelines is complex, and the abnormal external load during pipeline operation may lead to local stress concentration, which will increase the operation risk of pipeline.The coercivity-based ...
CHENG Fanju   +5 more
doaj   +1 more source

Most frequently asked questions about the coercivity of Nd-Fe-B permanent magnets

open access: yesScience and Technology of Advanced Materials, 2021
Physically, the coercivity of permanent magnets should scale with the anisotropy field of ferromagnetic compounds, HA; however, the typical coercivity values of commercial polycrystalline sintered magnets are only ~0.2 HA, which is known as Brown’s ...
Jiangnan Li   +4 more
doaj   +1 more source

Influence of Cu on the Improvement of Magnetic Properties and Structure of L10 FePt Nanoparticles

open access: yesNanomaterials, 2021
L10 ordered FePt and FePtCu nanoparticles (NPs) with a good dispersion were successfully fabricated by a simple, green, one-step solid-phase reduction method.
Luran Zhang   +8 more
doaj   +1 more source

Morphology of NdFeB-Type Permanent Magnet Coercivity Enhancement by Heat Treatment Process

open access: yesIndonesian Journal of Chemistry, 2020
To understand the morphology of the coercivity enhancement by heat treatment, a commercial sintered NdFeB-type permanent magnet is annealed, and the coercivity is measured by Permagraph.
Eva Afrilinda   +5 more
doaj   +1 more source

Additive Manufacturing of Bulk Nanocrystalline FeNdB Based Permanent Magnets

open access: yesMicromachines, 2021
Lab scale additive manufacturing of Fe-Nd-B based powders was performed to realize bulk nanocrystalline Fe-Nd-B based permanent magnets. For fabrication a special inert gas process chamber for laser powder bed fusion was used.
Dagmar Goll   +5 more
doaj   +1 more source

On the remarkable coercivity in MnBi by microstructural engineering [PDF]

open access: yesAPL Materials
MnBi materials with different microstructures were prepared by severe plastic deformation using different processing conditions. The coercivity can be controlled by tuning the grain size, defect density, and the phase distribution of the MnBi in the ...
Andrea Bachmaier   +4 more
doaj   +1 more source

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