CURRENT SITUATION AND PROSPECTS OF PRODUCTION AND RESERVES OF PERMANENT MAGNETS OF RARE EARTHS: BRAZIL × WORLD [PDF]
Generating energy from renewable sources is not an easy task since it requires different types of technologies, which can add much cost to the system. For this reason, investment in research in this area can be an alternative for economic feasibility ...
Franciele Weschenfelder +5 more
doaj +1 more source
The magnetism of permanent magnets [PDF]
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openaire +1 more source
Analytical and numerical computation of air-gap magnetic fields in brushless motors with surface permanent magnets [PDF]
This paper extends the theory of the air-gap magnetic field in permanent-magnet (PM) brushless motors. Scalar and vector potential solutions to the field equations are brought together to unify many of the important practical methods already in use.
McGilp, M.I. +4 more
core +1 more source
Investigating the magnetic and mechanical properties of NdCeFe14B permanent magnets: Ab initio study [PDF]
Neodymium-based permanent magnets (Nd2Fe14B) are the potential permanent magnets for various applications in high-efficiency power conversion machines and devices such as wind turbines and electric vehicles.
Baloyi Mphamela +3 more
doaj +1 more source
A magnetic field model of rectangular permanent magnets in a magnetic pendulum array
The magnetic pendulum array (MPA) is a novel mechanical antenna for efficient and portable ultra-low-frequency transmission. Its natural frequency is affected by the magnetic field of its rectangular permanent magnets.
Weiye Song, Changgeng Shuai, Qi Zhai
doaj +1 more source
In electric motors, the use of rare-earth magnets has been increasing rapidly. A stronger magnet force of the magnet enables the motor’s higher performance, resulting in the most high-performance motors generally using rare-earth magnets.
Sungwoo Chang +3 more
doaj +1 more source
Innovative Hybrid Halbach Array for Steering Magnetic Nanoparticles Through a Bifurcation
Magnetic nanoparticles are used in a wide range of medical applications. However, the accurate steering of the particles through the vascular system is still an open research question.
Thalmayer Angelika S., Fischer Georg
doaj +1 more source
Improvement of thermal stability by co-introducing Dy and Co with dual-alloy method in NdFeB magnets
A dual-main-phase magnet with excellent thermal stability was prepared by co-mixing two types of magnetic powders, which was the conventional N55-grade powder without Dy elements, while the Co and Dy contents reached 50 wt% and 6 wt% respectively in ...
Xintong Yang +10 more
doaj +1 more source
Overview of Hybrid Excitation in Electrical Machines
Hybrid excitation is a technology that combines the advantages of field windings and permanent magnets for inducing magnetic flux. This article studies the benefits of hybrid excitation and provides an outlook on their possible applications, such as wind
Gustav Mörée, Mats Leijon
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Line-start permanent-magnet motor single-phase steady-state performance analysis [PDF]
This paper describes an efficient calculating procedure for the steady-state operation of a single-phase line-start capacitor-run permanent-magnet motor.
Cossar, C. +13 more
core +1 more source

