Stellarators with Permanent Magnets [PDF]
Physical Review Letters, 2020 It is shown that the magnetic-field coils of a stellarator can, at least in principle, be substantially simplified by the use of permanent magnets. Such magnets cannot create toroidal magnetic flux but they can be used to shape the plasma and thus to create poloidal flux and rotational transform, thereby easing the requirements on the magnetic-field ...
P. Helander +3 more
openaire +6 more sources
Magnetic Guiding with Permanent Magnets: Concept, Realization and Applications to Nanoparticles and Cells. [PDF]
Cells, 2021 The idea of remote magnetic guiding is developed from the underlying physics of a concept that allows for bijective force generation over the inner volume of magnet systems. This concept can equally be implemented by electro- or permanent magnets.
Blümler P.
europepmc +2 more sources
Additive Manufacturing of Bulk Nanocrystalline FeNdB Based Permanent Magnets. [PDF]
Micromachines (Basel), 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.
Goll D +5 more
europepmc +2 more sources
Most frequently asked questions about the coercivity of Nd-Fe-B permanent magnets. [PDF]
Sci Technol Adv Mater, 2021 Physically, the coercivity of permanent magnets should scale with the anisotropy field of ferromagnetic compounds, H A; however, the typical coercivity values of commercial polycrystalline sintered magnets are only ~0.2 H A, which is known as Brown’s ...
Li J +4 more
europepmc +2 more sources
Additive Manufacturing of Isotropic NdFeB PPS Bonded Permanent Magnets. [PDF]
Materials (Basel), 2020 Extrusion based additive manufacturing of polymer composite magnets can increase the solid loading volume fraction with greater mechanical force through the printing nozzle as compared to traditional injection molding process.
Paranthaman MP +8 more
europepmc +2 more sources
Perspective and Prospects for Rare Earth Permanent Magnets
Engineering, 2020 J. Coey
exaly +2 more sources
Current progress and future challenges in rare-earth-free permanent magnets
Acta Materialia, 2018 Jun Cui, Matthew J Kramer, Lin Zhou
exaly +2 more sources
Collaborative Magnetic Manipulation via Two Robotically Actuated Permanent Magnets
IEEE Transactions on robotics, 2023 Magnetically actuated robots have proven effective in several applications, specifically in medicine. However, generating high actuating fields with a high degree of manipulability is still a challenge, especially when the application needs a large ...
G. Pittiglio +5 more
semanticscholar +1 more source
The influence of Holmium substitution on the magnetic and mechanical properties of Nd2Fe14B: a first principle study [PDF]
MATEC Web of Conferences, 2023 In this study, the ab initio density functional theory (DFT) approach is used to investigate the effect of Holmium (Ho) on the magnetic and mechanical properties of Nd2Fe14B magnets.
Baloyi Mphamela Enos +2 more
doaj +1 more source
Manufacturing Processes for Permanent Magnets: Part I—Sintering and Casting
JOM, 2022 Permanent magnets (PMs) produce magnetic fields and maintain the field even in the presence of an opposing magnetic field. Electrical machines using permanent magnets are more efficient than those without. Currently, all known strong magnets contain rare
Jun Cui +11 more
semanticscholar +1 more source