TW200535873A - Nanocomposite permanent magnets - Google Patents
Nanocomposite permanent magnets Download PDFInfo
- Publication number
- TW200535873A TW200535873A TW093141815A TW93141815A TW200535873A TW 200535873 A TW200535873 A TW 200535873A TW 093141815 A TW093141815 A TW 093141815A TW 93141815 A TW93141815 A TW 93141815A TW 200535873 A TW200535873 A TW 200535873A
- Authority
- TW
- Taiwan
- Prior art keywords
- rare earth
- transition metal
- nanocomposite
- yttrium
- permanent magnet
- Prior art date
Links
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 109
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 160
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 158
- 238000000034 method Methods 0.000 claims abstract description 60
- 229910052727 yttrium Inorganic materials 0.000 claims description 75
- 229910045601 alloy Inorganic materials 0.000 claims description 67
- 239000000956 alloy Substances 0.000 claims description 67
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 64
- -1 yttrium transition metal compounds Chemical class 0.000 claims description 59
- 229910052723 transition metal Inorganic materials 0.000 claims description 48
- 229910052742 iron Inorganic materials 0.000 claims description 42
- 150000001875 compounds Chemical class 0.000 claims description 33
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 21
- 150000003624 transition metals Chemical class 0.000 claims description 18
- 238000007731 hot pressing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 150000003623 transition metal compounds Chemical class 0.000 claims description 8
- 229910052779 Neodymium Inorganic materials 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 229910052702 rhenium Inorganic materials 0.000 claims description 6
- 229910052772 Samarium Inorganic materials 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000002074 melt spinning Methods 0.000 claims description 4
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052771 Terbium Inorganic materials 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 claims 3
- 238000009760 electrical discharge machining Methods 0.000 claims 3
- 239000000853 adhesive Substances 0.000 claims 2
- 230000001070 adhesive effect Effects 0.000 claims 2
- 229910001020 Au alloy Inorganic materials 0.000 claims 1
- 229910052693 Europium Inorganic materials 0.000 claims 1
- 229910052688 Gadolinium Inorganic materials 0.000 claims 1
- 229910052765 Lutetium Inorganic materials 0.000 claims 1
- 229910001122 Mischmetal Inorganic materials 0.000 claims 1
- 229910000691 Re alloy Inorganic materials 0.000 claims 1
- 229910052769 Ytterbium Inorganic materials 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 229940125904 compound 1 Drugs 0.000 claims 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims 1
- 239000003353 gold alloy Substances 0.000 claims 1
- 229910052735 hafnium Inorganic materials 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 238000007750 plasma spraying Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract description 15
- 230000005347 demagnetization Effects 0.000 description 19
- 230000005291 magnetic effect Effects 0.000 description 17
- 230000009467 reduction Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000013078 crystal Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- 235000013339 cereals Nutrition 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 3
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000001192 hot extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910017524 LaCo5 Inorganic materials 0.000 description 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003748 yttrium compounds Chemical class 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0579—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B with exchange spin coupling between hard and soft nanophases, e.g. nanocomposite spring magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53367403P | 2003-12-31 | 2003-12-31 | |
| US11/024,590 US20060054245A1 (en) | 2003-12-31 | 2004-12-29 | Nanocomposite permanent magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200535873A true TW200535873A (en) | 2005-11-01 |
Family
ID=34752441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW093141815A TW200535873A (en) | 2003-12-31 | 2004-12-31 | Nanocomposite permanent magnets |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060054245A1 (enExample) |
| EP (1) | EP1704573A2 (enExample) |
| JP (1) | JP2007517414A (enExample) |
| TW (1) | TW200535873A (enExample) |
| WO (1) | WO2005066980A2 (enExample) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7254133B2 (en) * | 2002-07-15 | 2007-08-07 | Intel Corporation | Prevention of denial of service attacks |
| GB2458039B (en) | 2007-02-12 | 2012-07-25 | Vacuumschmelze Gmbh & Co Kg | Article for magnetic heat exchange and method of manufacturing the same |
| GB2460774B8 (en) | 2007-12-27 | 2012-12-19 | Vacuumschmelze Gmbh & Co Kg | Composite article with magnetocalorically active material and method for its production |
| GB2463931B (en) | 2008-10-01 | 2011-01-12 | Vacuumschmelze Gmbh & Co Kg | Method for producing a magnetic article |
| JP5520306B2 (ja) | 2008-10-01 | 2014-06-11 | ヴァキュームシュメルツェ ゲーエムベーハー ウント コンパニー カーゲー | 少なくとも一つの磁気熱量活性相を有する製品，及び少なくとも一つの磁気熱量活性相を有する製品の加工方法 |
| US20120076684A1 (en) * | 2009-03-17 | 2012-03-29 | Magnequench International Inc. | magnetic material |
| KR20110040792A (ko) | 2009-05-06 | 2011-04-20 | 바쿰슈멜체 게엠베하 운트 코. 카게 | 자기 열교환용 물품 및 자기 열교환용 물품의 제조 방법 |
| GB2482880B (en) | 2010-08-18 | 2014-01-29 | Vacuumschmelze Gmbh & Co Kg | An article for magnetic heat exchange and a method of fabricating a working component for magnetic heat exchange |
| DE112011102958T5 (de) * | 2010-09-06 | 2013-06-20 | Daihatsu Motor Co., Ltd. | Magnetisches Material und Verfahren zu seiner Herstellung |
| CN102324814B (zh) * | 2011-08-26 | 2013-08-28 | 邓上云 | 一种永磁交流同步电机用钕铁硼/铁氧体复合磁体的制备工艺 |
| JP2013098319A (ja) * | 2011-10-31 | 2013-05-20 | Toyota Motor Corp | Ｎｄ−Ｆｅ−Ｂ系磁石の製造方法 |
| JP5725200B2 (ja) | 2011-11-14 | 2015-05-27 | トヨタ自動車株式会社 | 希土類磁石 |
| CN102403079A (zh) * | 2011-11-17 | 2012-04-04 | 中国科学院宁波材料技术与工程研究所 | 各向异性纳米晶钕铁硼永磁材料的制备方法 |
| DE112012005566T8 (de) * | 2012-01-04 | 2014-11-13 | National Institute For Materials Science | Seltenerdnanoverbundmagnet |
| JP5790617B2 (ja) | 2012-10-18 | 2015-10-07 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| JP5751237B2 (ja) * | 2012-11-02 | 2015-07-22 | トヨタ自動車株式会社 | 希土類磁石とその製造方法 |
| CN109300640B (zh) | 2013-06-05 | 2021-03-09 | 丰田自动车株式会社 | 稀土磁体及其制造方法 |
| KR20150033423A (ko) * | 2013-09-24 | 2015-04-01 | 엘지전자 주식회사 | 열간가압성형 공정을 이용한 이방성 열간가압성형 자석의 제조방법 및 이 방법으로 제조된 열간가압성형 자석 |
| US9687037B1 (en) * | 2014-02-06 | 2017-06-27 | Virginia Commonwealth University | Magnetic football helmet to reduce concussion injuries |
| JP6003920B2 (ja) | 2014-02-12 | 2016-10-05 | トヨタ自動車株式会社 | 希土類磁石の製造方法 |
| CN104150891B (zh) * | 2014-03-15 | 2015-12-30 | 南通万宝磁石制造有限公司 | 一种永磁交流同步电机用铁氧体永磁体制备工艺 |
| RU2578211C1 (ru) * | 2014-10-29 | 2016-03-27 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Магнитный материал для постоянных магнитов и изделие, выполненное из него |
| US10062482B2 (en) | 2015-08-25 | 2018-08-28 | GM Global Technology Operations LLC | Rapid consolidation method for preparing bulk metastable iron-rich materials |
| CN106531382B (zh) | 2015-09-10 | 2019-11-05 | 燕山大学 | 一种永磁材料及其制备方法 |
| US11213890B2 (en) * | 2016-08-17 | 2022-01-04 | Urban Mining Technology Company, Inc. | Sub-micron particles of rare earth and transition metals and alloys, including rare earth magnet materials |
| CN108242305B (zh) * | 2016-12-27 | 2020-03-27 | 有研稀土新材料股份有限公司 | 稀土永磁材料及其制备方法 |
| EP3858515A1 (en) * | 2020-01-30 | 2021-08-04 | Jozef Stefan Institute | Filament with oriented magnetic particles for 3d printing of anisotropic magnets |
| CN113205937B (zh) * | 2021-04-23 | 2022-10-04 | 安徽吉华新材料有限公司 | 一种无重稀土高性能烧结钕铁硼永磁材料及其制备工艺 |
| CN113205938B (zh) * | 2021-04-23 | 2022-10-14 | 安徽吉华新材料有限公司 | 一种低成本高性能的烧结钕铁硼永磁材料及其制备工艺 |
| CN113903585B (zh) * | 2021-09-07 | 2023-10-03 | 江西理工大学 | 一种具有各向异性的稀土永磁材料及其制备方法 |
| CN115458317B (zh) * | 2022-09-30 | 2025-09-02 | 四川大学 | 一种高剩磁、高矫顽力和高电阻率的各向异性纳米晶稀土永磁材料及其制备方法和应用 |
| CN116190033A (zh) * | 2023-02-23 | 2023-05-30 | 中国计量大学 | 一种PrCo5/SmCo5双相复合永磁体的制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558372A (en) * | 1968-01-31 | 1971-01-26 | Gen Electric | Method of making permanent magnet material powders |
| US3560200A (en) * | 1968-04-01 | 1971-02-02 | Bell Telephone Labor Inc | Permanent magnetic materials |
| US3919004A (en) * | 1970-04-30 | 1975-11-11 | Gen Electric | Liquid sintered cobalt-rare earth intermetallic product |
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-
2004
- 2004-12-29 US US11/024,590 patent/US20060054245A1/en not_active Abandoned
- 2004-12-30 WO PCT/US2004/043993 patent/WO2005066980A2/en not_active Ceased
- 2004-12-30 JP JP2006547583A patent/JP2007517414A/ja active Pending
- 2004-12-30 EP EP04815980A patent/EP1704573A2/en not_active Withdrawn
- 2004-12-31 TW TW093141815A patent/TW200535873A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007517414A (ja) | 2007-06-28 |
| WO2005066980A2 (en) | 2005-07-21 |
| US20060054245A1 (en) | 2006-03-16 |
| WO2005066980A3 (en) | 2005-09-15 |
| EP1704573A2 (en) | 2006-09-27 |
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