Results 21 to 30 of about 10,366 (260)

Ultrathin films of L10-MnAl on GaAs (001): A hard magnetic MnAl layer onto a soft Mn-Ga-As-Al interface

open access: yesAPL Materials, 2018
Ferromagnetic MnAl (L10-MnAl phase) ultrathin films with thickness varying from 1 to 5 nm have been epitaxially grown on a GaAs (001) substrate. A coercivity above 8 kOe has been obtained with no need of a buffer layer by tuning the sample preparation ...
C. Navío   +6 more
doaj   +1 more source

MnBi thin films for high temperature permanent magnet applications

open access: yesAIP Advances, 2019
Thin films of ferromagnetic LTP-MnBi (Low Temperature Phase of MnBi) have been grown by magnetron sputtering onto quartz substrates. Two particular issues related to LTP-MnBi have been investigated: the strong influence of the growth temperature and the ...
M. Villanueva   +6 more
doaj   +1 more source

CURRENT SITUATION AND PROSPECTS OF PRODUCTION AND RESERVES OF PERMANENT MAGNETS OF RARE EARTHS: BRAZIL × WORLD [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2012
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

Theoretical and experimental recommendations for the elimination of grinding cracks during the processing of permanent magnets

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2023
The manufacturing technology of permanent magnets has high precision characteristics and is based on extreme dependencies of physical and mechanical properties of magnets from the contents of the alloy, crystalline structure and temperature and force ...
Анатолій Васильович Усов   +2 more
doaj   +5 more sources

Permanent magnet based dipole magnets for next generation light sources

open access: yesPhysical Review Accelerators and Beams, 2017
We have developed permanent magnet based dipole magnets for the next generation light sources. Permanent magnets are advantageous over electromagnets in that they consume less power, are physically more compact, and there is a less risk of power supply ...
Takahiro Watanabe   +4 more
doaj   +1 more source

Investigating the magnetic and mechanical properties of NdCeFe14B permanent magnets: Ab initio study [PDF]

open access: yesMATEC Web of Conferences
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

open access: yesAIP Advances, 2023
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

Improvement of Torque Performance and Energy Density of PM-Type Vernier Motor Utilizing Saddle Coil and Salient Pole

open access: yesApplied Sciences, 2021
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

Improvement of thermal stability by co-introducing Dy and Co with dual-alloy method in NdFeB magnets

open access: yesJournal of Materials Research and Technology
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

Innovative Hybrid Halbach Array for Steering Magnetic Nanoparticles Through a Bifurcation

open access: yesCurrent Directions in Biomedical Engineering, 2023
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

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