Initial Irreversible Losses and Enhanced High‐Temperature Performance of Rare‐Earth Permanent Magnets
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201900690
Abstract: There is an increasing demand for permanent magnets with high‐temperature stability. Normally, the magnets are heat treated above the operating temperature range to saturate the irreversible losses, thereby producing magnets that are stable, but with… read more here.
Keywords: irreversible losses; initial irreversible; permanent magnets; performance ... See more keywords
Magnetohydrodynamics modelling of a permanent magnets activated MRF clutch–brake
Sign Up to like & getrecommendations! Published in 2020 at "Microsystem Technologies"
DOI: 10.1007/s00542-020-04910-w
Abstract: Chattering due to vibrations on the machine tool shaft and control of the transmitted torque are both a concern in precision machining. Hence, a magnetorheological fluid clutch–brake, also acting as a rotary damper could be… read more here.
Keywords: clutch brake; magnetohydrodynamics; permanent magnets; magnetohydrodynamics modelling ... See more keywords
Lateral Position Effect of Auxiliary Permanent Magnets on the Magnetic Force Properties of Cylindrical YBCO
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-016-3685-x
Abstract: The magnetic levitation force (MLF) and the guidance force (GF) should be improved for loading capacity and stability of Maglev systems, respectively. Although there are some ways to increase these properties, using of auxiliary onboard… read more here.
Keywords: auxiliary pms; lateral position; permanent magnets; force ... See more keywords
Reversible Changes of Coercive Force in Sm – Co – Cu – Fe – Zr Alloy for Permanent Magnets Under Cyclic Heat Treatment
Sign Up to like & getrecommendations! Published in 2018 at "Metal Science and Heat Treatment"
DOI: 10.1007/s11041-018-0306-2
Abstract: Causes of reversible changes in the coercivity of alloys for permanent magnets as a result of cyclic heat treatment are analyzed. The magnetic properties and the metallographic and magnetic domain structures of alloy Sm(Co0.65Fe0.26Cu0.07Zr0.02)7 are… read more here.
Keywords: heat treatment; cyclic heat; reversible changes; permanent magnets ... See more keywords
Permanent Magnets Produced by Cold Spray Additive Manufacturing for Electric Engines
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Thermal Spray Technology"
DOI: 10.1007/s11666-019-00917-6
Abstract: With the global trend towards electrification of transport, the interest for various configurations of electric motors is growing. Unfortunately, the low versatility of the motor magnet fabrication technologies limits the development of new motor geometries.… read more here.
Keywords: cold spray; spray; permanent magnets; additive manufacturing ... See more keywords
Compression Molding and Novel Sintering Treatments for Alnico Type-8 Permanent Magnets in Near-Final Shape with Preferred Orientation
Sign Up to like & getrecommendations! Published in 2017 at "JOM"
DOI: 10.1007/s11837-017-2453-0
Abstract: AbstractEconomic uncertainty in the rare earth (RE) permanent magnet marketplace, as well as in an expanding electric drive vehicle market that favors permanent magnet alternating current synchronous drive motors, motivated renewed research in RE-free permanent… read more here.
Keywords: near final; compression molding; permanent magnets; final shape ... See more keywords
Structure and Magnetic Properties of Heat-Resistant Sm(Co0.796−xFe0.177CuxZr0.027)6.63 Permanent Magnets with High Coercivity
Sign Up to like & getrecommendations! Published in 2018 at "JOM"
DOI: 10.1007/s11837-018-3240-2
Abstract: The structure and temperature stability of high-temperature permanent magnets Sm(Co0.796−xFe0.177CuxZr0.027)6.63 (x = 0.117 and 0.130) were studied using x-ray diffraction analysis, thermomagnetic analysis, and scanning and transmission electron microscopy. The magnets have a nanocrystalline cellular structure composed… read more here.
Keywords: xfe0 177cuxzr0; temperature; co0 796; permanent magnets ... See more keywords
Laser powder bed fusion of Nd–Fe–B permanent magnets
Sign Up to like & getrecommendations! Published in 2020 at "Progress in Additive Manufacturing"
DOI: 10.1007/s40964-020-00117-7
Abstract: In this work, we use laser powder bed fusion (LPBF) to produce Nd–Fe–B magnets. A suitable process window is developed, which allows to fabricate isotropic samples with outstanding magnetic performance. The sample quality is mainly… read more here.
Keywords: powder bed; bed fusion; powder; permanent magnets ... See more keywords
Material and magnetic properties of Sm2(Co, Fe, Cu, Zr)17 permanent magnets processed by Spark Plasma Sintering
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.08.186
Abstract: Abstract Improvements to the properties of Rare Earth Permanent Magnets (REPMs) are needed to advance the capabilities of electric motors and generators, and refinement of the microstructure by the use of different approaches to processing… read more here.
Keywords: plasma sintering; magnetic properties; sm2 permanent; permanent magnets ... See more keywords
A review of radiation-induced demagnetization of permanent magnets
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Nuclear Materials"
DOI: 10.1016/j.jnucmat.2018.02.029
Abstract: Abstract Radiation-induced demagnetization of permanent magnets is important for a number of applications including space missions, particle accelerators and robots designed to carry out rescue missions at nuclear accidents where magnet failure can lead to… read more here.
Keywords: radiation induced; demagnetization permanent; permanent magnets; induced demagnetization ... See more keywords
Microstructure and magnetic properties of Nd-Fe-B permanent magnets produced by laser powder bed fusion
Sign Up to like & getrecommendations! Published in 2021 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2021.113921
Abstract: Abstract Additive manufacturing of Nd-Fe-B is a novel approach for the fabrication of permanent magnets. We present an analysis of the magnetic properties and microstructure of Nd-Fe-B permanent magnets, which were produced by laser powder… read more here.
Keywords: produced laser; powder; microstructure; magnets produced ... See more keywords