Results 31 to 40 of about 380,880 (314)

Eddy current generation enhancement using ferrite for electromagnetic acoustic transduction [PDF]

open access: yes, 2006
Eddy currents are generated in an electrically conducting surface as a step in electromagnetic acoustic transduction (EAT). In eddy current testing, wire coils are often wound onto a ferrite core to increase the generated eddy current.
S. Dixon, Sophian A., X. Jian
core   +1 more source

Direct-on-line-start permanent-magnet-assisted synchronous reluctance motors with ferrite magnets for driving constant loads

open access: diamond, 2020
For driving constant loads in industry, the use of direct-on-line-start permanent-magnet-assisted synchronous reluctance motors with ferrite magnets (DOL-Start-PMa-SynRM) is proposed.
Percy R. Viego   +3 more
openalex   +3 more sources

Performance comparison of conventional synchronous reluctance machines and PM-assisted types with combined star-delta winding [PDF]

open access: yes, 2017
This paper compares four prototype Synchronous Reluctance Motors (SynRMs) having an identical geometry of iron lamination stacks in the stator and rotor.
Ibrahim, Mohamed Nabil Fathy   +2 more
core   +3 more sources

Magnet selection for permanent magnet synchronous machines by decision science

open access: yesResults in Materials, 2023
This work investigates magnet selection for permanent magnet synchronous machines (PMSMs) by decision science. 20 multiple-attribute decision-making (MADM) methods ranked a list of 45 industrial-grade permanent magnets based on eight property ...
T.V. Jayaraman
doaj   +1 more source

Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]

open access: yes, 2014
The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful
Sergeant, Peter, Van den Bossche, Alex
core   +2 more sources

High-Torque-Density Low-Cost Magnetic Gear Utilizing Hybrid Magnets and Advanced Materials [PDF]

open access: yes, 2019
Two major challenges of existing high-performance magnetic gears are: (i) High content of rare-earth permanent magnets which results in high cost as well as price fluctuation; (ii) Conflict between mechanical and electromagnetic performances, especially ...
Al-Qarni, Ali Hussain   +2 more
core   +2 more sources

Comparative Analysis and Design Optimization of Ferrite-Based Surface PM Vernier Machines

open access: yesEnergies
This paper presents the results of a comprehensive investigation into the comparative analysis and design optimization of ferrite-based surface permanent magnet vernier machines (SPMVMs).
Gwan-Hui Jang, Abdur Rehman, Gilsu Choi
doaj   +1 more source

Optimization and analysis of asymmetrical hybrid permanent magnetmotor for electric vehicle

open access: yesJournal of Hebei University of Science and Technology, 2022
Aiming at the problems of large amount of rare earth materials and too high cogging torque of traditional rare earth permanent magnet motor,an asymmetrical hybrid magnetic pole permanent magnet motor structure was proposed.The equivalent magnetic circuit
Kaiwen LIU   +4 more
doaj   +1 more source

A Novel Magnet-Axis-Shifted Hybrid Permanent Magnet Machine for Electric Vehicle Applications

open access: yesEnergies, 2019
This paper proposes a novel magnet-axis-shifted hybrid permanent magnet (MAS-HPM) machine, which features an asymmetrical magnet arrangement, i.e., low-cost ferrite and high-performance NdFeB magnets, are placed in the two sides of a “▽„ ...
Ya Li   +4 more
doaj   +1 more source

Achieving Large and Anisotropic Spin‐Mediated Thermal Transport in Textured Quantum Magnets

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced solvent‐cast cold pressing method is developed to synthesize highly textured quantum magnets. By aligning spin chains in Ca2CuO3 perpendicular to the pressing direction, a spin‐mediated thermal conductivity of 10 ± 1 W m⁻¹ K⁻¹ is achieved, the highest reported for polycrystalline quantum materials.
Shucheng Guo   +6 more
wiley   +1 more source

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