Results 11 to 20 of about 80,652 (294)

Effect of Nd-Co on microstructure and magnetic properties of Nd-Ce-Y-Fe-B sintered magnets

open access: yesResults in Physics, 2022
The magnetic properties and microstructure of Nd-Ce-Y-Fe-B magnets with Nd-Co boundary additions (0, 1, 3, and 5 wt%) have been systematically investigated.
Zhi Jia   +9 more
doaj   +1 more source

Feasibility analysis of implant movement along arc trajectory under non-contact control in magnetic stereotaxic system

open access: yesСучасний стан наукових досліджень та технологій в промисловості, 2023
In this paper, the non-contact control of magnetic implants by changing the external magnetic field in the magnetic stereotaxic system is introduced, and the feasibility of making them move along the arc trajectory is analyzed.
Цзяо Ханкунь   +1 more
doaj   +3 more sources

Efficient Nanostructuring of Isotropic Gas-Atomized MnAl Powder by Rapid Milling (30 s)

open access: yesEngineering, 2020
An unprecedentedly short milling time of 30 s was applied to gas-atomized MnAl powder in order to develop permanent magnet properties and, in particular, coercivity. It is shown that such a short processing time followed by annealing results in efficient
J. Rial, E.M. Palmero, A. Bollero
doaj   +1 more source

Development of a torsional vibration suppression device using permanent magnets

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Dual mass flywheel (DMF) dampers are conventionally used for torsional vibration suppression in automobile powertrains. The torsional vibration in powertrains has increased in recent years owing to the widespread downsizing of internal combustion engines
Tomohiro MIYABE   +3 more
doaj   +1 more source

The possibility of using permanent magnets without rare earth elements in electric motors

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. The use of rare earth permanent magnets in electric motors has become commonplace. The use of rare earth magnets in electric motors, such as neodymium (NdFeB), gives a significant increase in the characteristics of the electric motor.
A. A. Маiorov, A. R. Safin
doaj   +1 more source

Comparative Study on Variable Flux Memory Machines With Different Arrangements of Permanent Magnets

open access: yesIEEE Access, 2020
Compared with conventional permanent magnet synchronous motor, variable flux memory motor (VFMM) possesses the advantage of adjusting the magnetization state online.
Ying Xie, Zhaoyang Ning, Zexin Ma
doaj   +1 more source

Comparative study on equivalent models calculating magnetic force between permanent magnets [PDF]

open access: yesJournal of Intelligent Manufacturing and Special Equipment, 2020
Purpose – An appropriate equivalent model is the key to the effective analysis of the system and structure in which permanent magnet takes part. At present, there are several equivalent models for calculating the interacting magnetic force between ...
Yuyang Zhang   +6 more
doaj   +1 more source

Reduction of cogging torque of radial flux permanent magnet brushless DC motor by magnet shifting technique

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. In spite of many advantages of radial flux permanent magnet brushless DC motors it suffers from the distinct disadvantage of high cogging torque. The designer must emphasize to reduce the cogging torque during the design stage.
T. H. Panchal, A. N. Patel, R. M. Patel
doaj   +1 more source

Improved analytical model for predicting the magnetic field distribution in brushless permanent-magnet machines [PDF]

open access: yes, 2002
A general analytical technique predicts the magnetic field distribution in brushless permanent magnet machines equipped with surface-mounted magnets. It accounts for the effects of both the magnets and the stator windings.
Chan, C.C., Howe, D., Zhu, Z.Q.
core   +2 more sources

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

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