EP0453270A3 - Rare-earth based magnetic materials, production process and use - Google Patents
Rare-earth based magnetic materials, production process and use Download PDFInfo
- Publication number
- EP0453270A3 EP0453270A3 EP19910303442 EP91303442A EP0453270A3 EP 0453270 A3 EP0453270 A3 EP 0453270A3 EP 19910303442 EP19910303442 EP 19910303442 EP 91303442 A EP91303442 A EP 91303442A EP 0453270 A3 EP0453270 A3 EP 0453270A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- value
- rare
- production process
- magnetic materials
- based magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE135990 | 1990-04-18 | ||
IE320190 | 1990-09-04 | ||
IE320190 | 1990-09-04 | ||
IE67191 | 1991-02-28 | ||
IE67191 | 1991-02-28 | ||
IE135990A IE76721B1 (en) | 1990-09-04 | 1991-04-18 | Rare-earth based magnetic materials production process and use |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0453270A2 EP0453270A2 (en) | 1991-10-23 |
EP0453270A3 true EP0453270A3 (en) | 1991-11-27 |
EP0453270B1 EP0453270B1 (en) | 1996-04-10 |
Family
ID=27270319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91303442A Expired - Lifetime EP0453270B1 (en) | 1990-04-18 | 1991-04-17 | Rare-earth based magnetic materials, production process and use |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0453270B1 (en) |
JP (1) | JPH06349612A (en) |
AT (1) | ATE136680T1 (en) |
CA (1) | CA2040686A1 (en) |
DE (1) | DE69118577T2 (en) |
IE (1) | IE76721B1 (en) |
PT (1) | PT97411A (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06509211A (en) * | 1990-06-08 | 1994-10-13 | エスピーエス・テクノロジーズ・インコーポレーテッド | Improved magnetic material and its manufacturing method |
DE4023575A1 (en) * | 1990-07-25 | 1992-01-30 | Siemens Ag | METHOD FOR PRODUCING MAGNETIC MATERIAL BASED ON THE SM-FE-N POWER SYSTEM |
US5288339A (en) * | 1990-07-25 | 1994-02-22 | Siemens Aktiengesellschaft | Process for the production of magnetic material based on the Sm-Fe-N system of elements |
DE4116857A1 (en) * | 1991-05-23 | 1992-11-26 | Siemens Ag | Magnetic material based on thorium-dodeca:manganese crystal structure - with interstitial nitrogen, carbon or hydrogen atmos. obtd. by heat-treatment in suitable atmos. |
DE4135122A1 (en) * | 1991-10-24 | 1993-04-29 | Vacuumschmelze Gmbh | METHOD FOR PRODUCING A N-CONTAINING PERMANENT MAGNET, LIKE SM2FE17N BY ADDING A SOLID, N-CONTAINING COMPOUND |
GB9217760D0 (en) * | 1992-08-21 | 1992-10-07 | Martinex R & D Inc | Permanent manget material containing a rare-earth element,iron,nitrogen & carbon |
DE4237346C1 (en) * | 1992-11-05 | 1993-12-02 | Goldschmidt Ag Th | Method for the production of rare earth alloys of the type SE¶2¶Fe¶1¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ |
US5403407A (en) * | 1993-04-08 | 1995-04-04 | University Of Delaware | Permanent magnets made from iron alloys |
JP3304726B2 (en) * | 1995-11-28 | 2002-07-22 | 住友金属鉱山株式会社 | Rare earth-iron-nitrogen magnet alloy |
CN100437841C (en) | 2006-09-19 | 2008-11-26 | 北京大学 | Anisotropic rare-earth permanent magnet material and its magnetic powder and magnet mfg. method |
US8145766B2 (en) | 2007-08-08 | 2012-03-27 | Research In Motion Limited | Method for pre-fetching data chunks of an email attachment on a portable electronic device |
JP5055345B2 (en) * | 2009-11-30 | 2012-10-24 | 株式会社日立製作所 | Ferromagnetic compound magnet |
JP6248689B2 (en) * | 2014-02-20 | 2017-12-20 | 日立金属株式会社 | Ferromagnetic alloy and method for producing the same |
US10062482B2 (en) | 2015-08-25 | 2018-08-28 | GM Global Technology Operations LLC | Rapid consolidation method for preparing bulk metastable iron-rich materials |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402770A (en) * | 1981-10-23 | 1983-09-06 | The United States Of America As Represented By The Secretary Of The Navy | Hard magnetic alloys of a transition metal and lanthanide |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60131949A (en) * | 1983-12-19 | 1985-07-13 | Hitachi Metals Ltd | Iron-rare earth-nitrogen permanent magnet |
JPS60144909A (en) * | 1984-01-06 | 1985-07-31 | Daido Steel Co Ltd | Manufacture of permanent magnet material |
JPS60176202A (en) * | 1984-02-22 | 1985-09-10 | Hitachi Metals Ltd | Iron-rare earth-nitrogen permanent magnet |
JPH0685369B2 (en) * | 1985-05-17 | 1994-10-26 | 日立金属株式会社 | Permanent magnet manufacturing method |
JPH01274401A (en) * | 1988-04-26 | 1989-11-02 | Tdk Corp | Permanent magnet |
DE4025277A1 (en) * | 1990-08-09 | 1992-02-13 | Siemens Ag | METHOD FOR PRODUCING ANISOTROPICAL MAGNETIC MATERIAL BASED ON THE SM-FE-N FABRIC SYSTEM |
-
1991
- 1991-04-17 CA CA002040686A patent/CA2040686A1/en not_active Abandoned
- 1991-04-17 DE DE69118577T patent/DE69118577T2/en not_active Expired - Fee Related
- 1991-04-17 AT AT91303442T patent/ATE136680T1/en active
- 1991-04-17 EP EP91303442A patent/EP0453270B1/en not_active Expired - Lifetime
- 1991-04-18 JP JP3086632A patent/JPH06349612A/en active Pending
- 1991-04-18 IE IE135990A patent/IE76721B1/en not_active IP Right Cessation
- 1991-04-18 PT PT97411A patent/PT97411A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402770A (en) * | 1981-10-23 | 1983-09-06 | The United States Of America As Represented By The Secretary Of The Navy | Hard magnetic alloys of a transition metal and lanthanide |
Non-Patent Citations (6)
Title |
---|
IEEE TRANSACTIONS ON MAGNETICS, vol. 23, no. 5II, September 1987, pages 3098-3100; S. HIGANO et al.: "Magnetic properties of RE-TM-N system" * |
NRC HANDELSBLAD, 4th April 1991, NL; "Nieuwe legering ontwikkeld voor permanente magneten" * |
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 11 (E-374)[2068], 17th January 1986; & JP-A-60 176 202 (HITACHI KINZOKU K.K.) 10-09-1985 * |
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 117 (E-498)[2564], 11th April 1987; & JP-A-61 263 201 (HITACHI METALS LTD) 21-11-1986 * |
PATENT ABSTRACTS OF JAPAN, vol. 14, no. 41 (E-879)[3984], 25th January 1990; & JP-A-1 274 401 (TDK CORP.) 02-11-1989 * |
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 310 (E-364)[2033], 6th December 1985; & JP-A-60 144 909 (DAIDO TOKUSHUKO K.K.) 31-07-1985 * |
Also Published As
Publication number | Publication date |
---|---|
ATE136680T1 (en) | 1996-04-15 |
JPH06349612A (en) | 1994-12-22 |
IE76721B1 (en) | 1997-11-05 |
EP0453270B1 (en) | 1996-04-10 |
IE901359A1 (en) | 1991-11-06 |
DE69118577D1 (en) | 1996-05-15 |
CA2040686A1 (en) | 1991-10-19 |
PT97411A (en) | 1992-01-31 |
DE69118577T2 (en) | 1996-11-14 |
EP0453270A2 (en) | 1991-10-23 |
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