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ThMn12-Type Alloys for Permanent Magnets Review

G.C. Hadjipanayis, A.M. Gabay, A.M. Schönhöbel, A. Martín-Cid, J.M. Barandiaran, D. Niarchos

Engineering 2020, Volume 6, Issue 2,   Pages 140-146 doi: 10.1016/j.eng.2018.12.011

Abstract: with the tetragonal ThMn12-type structure have the potential to meet current demands for rare-earth-leanpermanent magnets with high energy density and operating temperatures of 150–200 ℃.of underlying magnetic material, this gap has always been unusually large for ThMn12-type magnetsUnfortunately, progress in the development of magnets beyond polymer-bonded interstitially modified powders(Sm,Zr)(Fe,Co,Ti)12 powders may become suitable for sintering into powerful fully dense magnets

Keywords： Permanent magnets     Rare earths permanent magnets     ThMn12 structure    

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Editorial for the Special Issue on Rare Earth Permanent Magnets

Wei Li

Engineering 2020, Volume 6, Issue 2,   Pages 101-101 doi: 10.1016/j.eng.2019.12.010

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Rare Earth Permanent Magnets and Their Place in the Future Economy

Allan Trench, John P. Sykes

Engineering 2020, Volume 6, Issue 2,   Pages 115-117 doi: 10.1016/j.eng.2019.12.007

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Perspective and Prospects for Rare Earth Permanent Magnets Review

J.M.D. Coey

Engineering 2020, Volume 6, Issue 2,   Pages 118-130 doi: 10.1016/j.eng.2018.11.034

Abstract:

Rare earth permanent magnets constitute a mature technology, but the shock of the 2011 rare earthcrisis led to the re-evaluation of many ideas from the 1980s and 1990s about possible new hard magnetscontaining little or no rare earth (or heavy rare earth).As the limitations of particular permanent magnets become clearer, ingenuity and imagination are beingused to design around them, and to exploit the available mix of rare earth resources most efficiently

Keywords： Rare earth magnets     Magnetic anisotropy     Coercivity     Energy product     Magnetic composites     Additive manufacturing    

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Computational Design of Rare-Earth Reduced Permanent Magnets Article

Alexander Kovacs, Johann Fischbacher, Markus Gusenbauer, Harald Oezelt, Heike C. Herper, Olga Yu. Vekilova, Pablo Nieves, Sergiu Arapan, Thomas Schrefl

Engineering 2020, Volume 6, Issue 2,   Pages 148-153 doi: 10.1016/j.eng.2019.11.006

Abstract: 0cm 0.0001pt;text-align:justify;">Multiscale simulation is a key research tool in the quest for new permanentmagnets.Iron (Fe)-rich magnetic phases suitable for permanent magnets can be found by means of adaptive geneticmagnets with a realistic structure.Structure property relations of synthetic permanent magnets were computed for several candidate hard

Keywords： Rare-earth     Permanent magnets     Micromagnetics    

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Mechanism of hot-deformation and magnetic domains of anisotropic die-upset rare earth permanent magnets

Li Wei,Zhu Minggang

Strategic Study of CAE 2011, Volume 13, Issue 10,   Pages 4-12

Abstract: style="text-align: justify;">In this paper, high performance of anisotropic de-upset nanoscale Nd-Fe-B magnetsIt is found that the strain activation energy of the die-upset Nd-Fe-B magnets is about 380 kJ/mol basedThe interaction domains are the typical characteristics of the magnetic structures of the magnets.coercivity mechanism and the corresponding maximum application temperature for the die-upset Nd-Fe-B magnets

Keywords： nanoscale Nd-Fe-B magnets     hot press-hot deformation     anisotropy     magnetic domains    

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Rare Earth Industry Towards the 21st Century

Yang Yuchun

Strategic Study of CAE 2000, Volume 2, Issue 9,   Pages 91-100

Abstract:

China has the richest rare earth resources in the world.The annual processing capacity of REO (rareAs a result, its rare earth has to rely on export.The exported rare earth accounts for two thirds of its total production.The application of rare earth in fields of metallurgy, permanent magnet, hydrogen storage alloys (nickel

Keywords： rare earth oxides     permanent magnetic materials     hydrogen storage alloy     catatyst     fuel cell     laser materials    

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An Efficient Process for Recycling Nd–Fe–B Sludge as High-Performance Sintered Magnets Article

Xiaowen Yin, Ming Yue, Qingmei Lu, Min Liu, Feng Wang, Yubing Qiu, Weiqiang Liu, Tieyong Zuo, Shanshun Zha, Xuliang Li, Xiaofei Yi

Engineering 2020, Volume 6, Issue 2,   Pages 165-172 doi: 10.1016/j.eng.2019.11.007

Abstract: :0cm 0cm 0.0001pt;text-align:justify;">Given the increasing concern regarding the global decline in rareleftover sludge from the manufacturing process of neodymium-iron-boron (Nd–Fe–B) sintered magnetsblended with 37.7 wt% Nd4Fe14B powder to fabricate Nd–Fe–B sintered magnets

Keywords： Nd–Fe–B grinding sludge Recycled sintered magnets     Calcium reduction-diffusion     Rare-earth-rich alloy    

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

J. Rial, E.M. Palmero, A. Bollero

Engineering 2020, Volume 6, Issue 2,   Pages 172-176 doi: 10.1016/j.eng.2019.03.013

Abstract: unprecedentedly short milling time of 30 s was applied to gas-atomized MnAl powder in order to develop permanent

Keywords： Permanent magnets (PMs)     Nanostructuring     Phase transformation     MnAl     Gas atomization     Ball milling    

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Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1513-4

Abstract:

• Season and landform influenced spatiotemporal patterns of abundant and rare

Keywords： Rare taxa     Biogeography     Community assembly     Bacterioplankton     The Yangtze River    

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Recovery of rare and precious metals from urban mines—A review

Mengmeng Wang, Quanyin Tan, Joseph F. Chiang, Jinhui Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0963-1

Abstract: The recovery of rare and precious metals (RPMs) from urban mines has attracted increasing attention from

Keywords： Rare and precious metals (RPMs)     Distribution characteristics     Recycling technology     Emerging technology    

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Characteristics and Exploitation of Rare Earth,Rare Metal and Rare-Scattered Element Minerals in China

Wang Denghong, Sun Yan, Dai Hongzhang, Guo Weiming, Zhao Zhi, Zhao Ting,Li Jiankang, Wang Chenghui, Huang Fan, Yu Yang, Li Dexian

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 119-127 doi: 10.15302/J-SSCAE-2019.01.017

Abstract:

China is rich in rear earth, rear metal, and rare-scattered element (suggestions for their development and utilization, and further emphasize the basic idea that “rareearth should be regulated, rare metal should be found when needed, and rare-scattered elements should

Keywords： rare earth     rear metal     and rare-scattered element minerals     resource characteristics     exploitation    

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Three-dimensional electromagnetic analysis and design of permanent magnet retarder

Lezhi YE, Desheng LI, Bingfeng JIAO

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 438-441 doi: 10.1007/s11465-010-0111-0

Abstract: This paper proposes a novel permanent magnet retarder (PMR) for vehicles, whose cooling system connectsA three-dimensional finite element model is developed to model the electromagnetic behavior of a permanent

Keywords： auxiliary brake     permanent magnet retarder     water-cooling     finite element method    

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Migration of ammonium nitrogen in ion-absorbed rare earth soils during and post mining: a column study

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1702-4

Abstract:

● Column experiments with an inclined slope were applied to simulate NH4–N transport.

Keywords： Ion-absorbed rare earth     Ammonium nitrogen transport     HYDRUS-2D     Numerical simulation    

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Structure optimization for magnetic equipment of permanent magnet retarder

Bingfeng JIAO, Desheng LI, Yunkang SUI, Lezhi YE

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 442-445 doi: 10.1007/s11465-010-0112-z

Abstract: The main purpose of this research is to perform a magnetic analysis on the magnetic equipment of permanentThe design variables are structural parameters including the dimensions of permanent magnets and magnetic

Keywords： optimization     ANSYS     permanent magnet retarder     numerical simulation    

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Title Author Date Type Operation

ThMn12-Type Alloys for Permanent Magnets

G.C. Hadjipanayis, A.M. Gabay, A.M. Schönhöbel, A. Martín-Cid, J.M. Barandiaran, D. Niarchos

Journal Article

Editorial for the Special Issue on Rare Earth Permanent Magnets

Wei Li

Journal Article

Rare Earth Permanent Magnets and Their Place in the Future Economy

Allan Trench, John P. Sykes

Journal Article

Perspective and Prospects for Rare Earth Permanent Magnets

J.M.D. Coey

Journal Article

Computational Design of Rare-Earth Reduced Permanent Magnets

Alexander Kovacs, Johann Fischbacher, Markus Gusenbauer, Harald Oezelt, Heike C. Herper, Olga Yu. Vekilova, Pablo Nieves, Sergiu Arapan, Thomas Schrefl

Journal Article

Mechanism of hot-deformation and magnetic domains of anisotropic die-upset rare earth permanent magnets

Li Wei,Zhu Minggang

Journal Article

Rare Earth Industry Towards the 21st Century

Yang Yuchun

Journal Article

An Efficient Process for Recycling Nd–Fe–B Sludge as High-Performance Sintered Magnets

Xiaowen Yin, Ming Yue, Qingmei Lu, Min Liu, Feng Wang, Yubing Qiu, Weiqiang Liu, Tieyong Zuo, Shanshun Zha, Xuliang Li, Xiaofei Yi

Journal Article

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

J. Rial, E.M. Palmero, A. Bollero

Journal Article

Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare

Journal Article

Recovery of rare and precious metals from urban mines—A review

Mengmeng Wang, Quanyin Tan, Joseph F. Chiang, Jinhui Li

Journal Article

Characteristics and Exploitation of Rare Earth,Rare Metal and Rare-Scattered Element Minerals in China

Wang Denghong, Sun Yan, Dai Hongzhang, Guo Weiming, Zhao Zhi, Zhao Ting,Li Jiankang, Wang Chenghui, Huang Fan, Yu Yang, Li Dexian

Journal Article

Three-dimensional electromagnetic analysis and design of permanent magnet retarder

Lezhi YE, Desheng LI, Bingfeng JIAO

Journal Article

Migration of ammonium nitrogen in ion-absorbed rare earth soils during and post mining: a column study

Journal Article

Structure optimization for magnetic equipment of permanent magnet retarder

Bingfeng JIAO, Desheng LI, Yunkang SUI, Lezhi YE

Journal Article