DE3877589D1 - USE OF A MATERIAL AS A HARD MAGNETIC MATERIAL. - Google Patents

USE OF A MATERIAL AS A HARD MAGNETIC MATERIAL.

Info

Publication number
DE3877589D1
DE3877589D1 DE8888101333T DE3877589T DE3877589D1 DE 3877589 D1 DE3877589 D1 DE 3877589D1 DE 8888101333 T DE8888101333 T DE 8888101333T DE 3877589 T DE3877589 T DE 3877589T DE 3877589 D1 DE3877589 D1 DE 3877589D1
Authority
DE
Germany
Prior art keywords
max
rare earth
pref
hard magnetic
present
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.)
Expired - Fee Related
Application number
DE8888101333T
Other languages
German (de)
Inventor
Alfred Dr Mueller
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE8888101333T priority Critical patent/DE3877589D1/en
Application granted granted Critical
Publication of DE3877589D1 publication Critical patent/DE3877589D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

The alloy consists of at least 3 elements, i.e. Fe 60-85 at.%, pref. max. 82 at.%, 4-35 at.% of Mo and/or W and 2-20 at.% of a rare earth element. The alloy contains a tetragonal ThMn12 structure. The allowable concns. are defined by the pentagon indicated in a 3-component phase-diagram (fig.2) with the corners P1-P5 with the compsns. resp. giving the amt. of rare earth, Fe and Mo or W in at.%: P1 : 4, 65, 31; P2 : 4, 85, 11; P3 : 9, 85, 6; P4 : 15, 79, 6; P5 : 15, 65, 20. In addn. to the ThMn12 structure at least one other phase in the RFeM-system may be present. A fourth element may be present, max. 10 at.%, pref. max. 8 at.%, of Co substituting Fe. The R-component rare earth can consist of more than 1 element. The material can be mixed in or attached to another material.
DE8888101333T 1987-02-11 1988-01-29 USE OF A MATERIAL AS A HARD MAGNETIC MATERIAL. Expired - Fee Related DE3877589D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888101333T DE3877589D1 (en) 1987-02-11 1988-01-29 USE OF A MATERIAL AS A HARD MAGNETIC MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873704238 DE3704238A1 (en) 1987-02-11 1987-02-11 IRONIC, MAGNETIC MATERIAL
DE8888101333T DE3877589D1 (en) 1987-02-11 1988-01-29 USE OF A MATERIAL AS A HARD MAGNETIC MATERIAL.

Publications (1)

Publication Number Publication Date
DE3877589D1 true DE3877589D1 (en) 1993-03-04

Family

ID=6320754

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873704238 Withdrawn DE3704238A1 (en) 1987-02-11 1987-02-11 IRONIC, MAGNETIC MATERIAL
DE8888101333T Expired - Fee Related DE3877589D1 (en) 1987-02-11 1988-01-29 USE OF A MATERIAL AS A HARD MAGNETIC MATERIAL.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19873704238 Withdrawn DE3704238A1 (en) 1987-02-11 1987-02-11 IRONIC, MAGNETIC MATERIAL

Country Status (4)

Country Link
EP (1) EP0278342B1 (en)
JP (1) JPS63203745A (en)
AT (1) ATE84902T1 (en)
DE (2) DE3704238A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2970809B2 (en) * 1987-12-28 1999-11-02 信越化学工業株式会社 Rare earth permanent magnet
JP3057448B2 (en) * 1988-05-26 2000-06-26 信越化学工業株式会社 Rare earth permanent magnet
DE3832472A1 (en) * 1988-09-23 1990-03-29 Siemens Ag METHOD FOR PRODUCING A MATERIAL WITH A HARD MAGNETIC PHASE FROM POWDER-BASED STARTING COMPONENTS
GB2232165A (en) * 1989-03-22 1990-12-05 Cookson Group Plc Magnetic compositions
DE102012207308A1 (en) * 2012-05-02 2013-11-07 Robert Bosch Gmbh Magnetic material, its use and process for its preparation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110209A (en) * 1984-06-26 1986-01-17 Toshiba Corp Permanent magnet
CA1273783A (en) * 1986-03-05 1990-09-11 Yung-Tsai Yen Mounting preparation for optical membrane

Also Published As

Publication number Publication date
ATE84902T1 (en) 1993-02-15
EP0278342A3 (en) 1989-11-15
EP0278342A2 (en) 1988-08-17
EP0278342B1 (en) 1993-01-20
DE3704238A1 (en) 1988-08-25
JPS63203745A (en) 1988-08-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee