Magnetic Losses in Soft Ferrites
Magnetochemistry, 2022 We review the basic phenomenology of magnetic losses from DC to 1 GHz in commercial and laboratory-prepared soft ferrites considering recent concepts regarding their physical interpretation. This is based, on the one hand, on the identification of the contributions to the magnetization process provided by spin rotations and domain walls and, on the ...
Samuel Dobák +3 more
openaire +2 more sources
Novel Design of Six-Phase Spoke-Type Ferrite Permanent Magnet Motor for Electric Truck Application
Energies, 2022 This paper proposes a 300 kW 24-slot/10-pole 6-phase stator-shifted fractional-slot concentrated winding spoke-type ferrite permanent magnet machine for electric truck applications.
Hoyun Won +11 more
doaj +1 more source
Evaluation of the magnetization direction effects on ferrite PM brushless fractional machines [PDF]
, 2012 Permanent magnets are frequently adopted in small brushless machines for automotive applications. Normally anisotropic ferrites, but some research on bonded magnets is being carried on.
Ferraris, Luca +3 more
core +1 more source
Barium Ferrite Magnet As Anti-Radar Material
Techno, 2022 Artikel ini bertujuan untuk mendiskusikan tentang magnet barium ferit dan potensi penggunaannya sebagai material anti radar dalam teknologi siluman di Indonesia. Studi ini menggunakan berbagai macam literatur dan hasil penelitian terbaru.
Mohamad Ikhsan Nurulloh +2 more
doaj +1 more source
Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices. [PDF]
J ArrhythmThis study on 13 Cardiac implantable electronic device (CIED) models revealed that surface magnetic fields of tablets, laptops, smartphones, and household magnets exceeded 10 G, potentially triggering magnet response mode. Activation occurred at ≤15 mm for electronic devices and ≤7 mm for household magnets.
Kamitani N +11 more
europepmc +2 more sources
High Energy Ferrite Magnets [PDF]
Le Journal de Physique IV, 1997 Lanthanum and zinc substitution in M-type hexaferrite was studied in detail in order to increase the saturation magnetization. For the composition Sr0.7La0.3Fe11.7Zn0.3O19, the saturation magnetization was increased by more than 4% and the uniaxial anisotropy constant (K 1) was almost the same as that of non-substituted Ba-ferrite.
Hitoshi Taguchi +4 more
openaire +2 more sources
High-Torque-Density Low-Cost Magnetic Gear Utilizing Hybrid Magnets and Advanced Materials [PDF]
, 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
On the Optimal Pole Width for Direct Drive Linear Wave Power Generators Using Ferrite Magnets
Energies, 2018 In this work, ferrite magnet linear generators for wave power applications are considered. These machines operate at unusually low speeds, around and even below 1 m/s, at which the optimal geometry differs from standard machines, since the copper loss ...
Anders Hagnestål
doaj +1 more source
Permanent Magnet Selections for AFPM Disc Generators
Energies, 2022 In this article, the field (FEM) and analytical analyses were used for the optimal selection of magnets material for the Axial Flux Permanent Magnet Generator (AFPMG), without building the prototype before.
Natalia Radwan-Pragłowska +1 more
doaj +1 more source
Establishing the Relative Merits of Interior and Spoke-Type Permanent-Magnet Machines With Ferrite or NdFeB Through Systematic Design Optimization [PDF]
, 2015 In this paper, a multiobjective design optimization method combining design-of-experiments techniques and differential-evolution algorithms is presented.
Demerdash, Nabeel +3 more
core +2 more sources