EP0453270A3 - Rare-earth based magnetic materials, production process and use - Google Patents

Rare-earth based magnetic materials, production process and use Download PDF

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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
Application number
EP19910303442
Other languages
German (de)
French (fr)
Other versions
EP0453270B1 (en
EP0453270A2 (en
Inventor
John Michael David Coey
Hong Sun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin
Original Assignee
College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin filed Critical College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin
Publication of EP0453270A2 publication Critical patent/EP0453270A2/en
Publication of EP0453270A3 publication Critical patent/EP0453270A3/en
Application granted granted Critical
Publication of EP0453270B1 publication Critical patent/EP0453270B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

A new magnetic material of the general formula: RxFeyX′aZb is derived from an intermetallic compound of rhomohedral or hexagonal crystal structure wherein R is one or more rare earth elements, X′ is an element of groups IIIA, IIIB, IVA or IVB of the periodic table, Z is one or more elements of group VA of the periodic table, x is a value from 1 to 2, y is a value from 11 to 19, a is a value from 0 to 3, b is a value from 0.5 to 3 and Fe is unsubstituted or partly, substitued with the proviso that if the component Z is antimony or bismuth the element X′ is not boron.
These new materials exhibit increased Curie temperatures, magnetic strength and easy uniaxial anisotropy and are therefore suitable for fabricating into permanent magnets. Processes for preparing materials RxFeyX′aZb are also described.
EP91303442A 1990-04-18 1991-04-17 Rare-earth based magnetic materials, production process and use Expired - Lifetime EP0453270B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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