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HUT64108A - Sintered permanent magnet (material) and process for producing same - Google Patents

Sintered permanent magnet (material) and process for producing same

Info

Publication number
HUT64108A
HUT64108A HU929200403A HU9200403A HUT64108A HU T64108 A HUT64108 A HU T64108A HU 929200403 A HU929200403 A HU 929200403A HU 9200403 A HU9200403 A HU 9200403A HU T64108 A HUT64108 A HU T64108A
Authority
HU
Hungary
Prior art keywords
permanent magnet
hre
phase
magnetic phase
particle
Prior art date
Application number
HU929200403A
Other languages
Hungarian (hu)
Other versions
HU9200403D0 (en
HU213284B (en
Inventor
Oskar Pacher
Siegfried Heiss
Adolf Diebold
Original Assignee
Boehler Ybbstalwerke
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 Boehler Ybbstalwerke filed Critical Boehler Ybbstalwerke
Publication of HU9200403D0 publication Critical patent/HU9200403D0/en
Publication of HUT64108A publication Critical patent/HUT64108A/en
Publication of HU213284B publication Critical patent/HU213284B/en

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
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered

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)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Compounds Of Iron (AREA)

Abstract

The invention relates to a sintered permanent magnet (material) and a process for its production using a magnetic phase of the type Se2(FeCO)14B and at least one further sinter-active or particle-combining phase. In order to achieve a high saturation magnetisation, high coercive force and high energy product with good temperature stability and high Curie point of the permanent magnet (material), it is proposed according to the invention that the magnetic phase is formed of diffusion-moulded particles, which are decreased in their surface energy, having a diameter of at most 60 mu m, the magnetic phase has contents of Co and heavy rare earths (HRE) in a certain ratio to one another, the HRE concentration being inhomogeneous over the particle cross-section and the particle-binding phase having a higher activity of the HRE at the diffusion temperature compared to the magnetic phase.
HU9200403A 1991-02-11 1992-02-10 Sintered permanent magnet (material) and method for producing it HU213284B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0028791A AT398861B (en) 1991-02-11 1991-02-11 SINTERED PERMANENT MAGNET (MATERIAL) AND METHOD FOR THE PRODUCTION THEREOF

Publications (3)

Publication Number Publication Date
HU9200403D0 HU9200403D0 (en) 1992-04-28
HUT64108A true HUT64108A (en) 1993-11-29
HU213284B HU213284B (en) 1997-04-28

Family

ID=3486534

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9200403A HU213284B (en) 1991-02-11 1992-02-10 Sintered permanent magnet (material) and method for producing it

Country Status (6)

Country Link
EP (1) EP0499600B1 (en)
AT (2) AT398861B (en)
CZ (1) CZ281161B6 (en)
DE (1) DE59200795D1 (en)
HU (1) HU213284B (en)
PL (1) PL169844B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331563A1 (en) * 1992-09-18 1994-03-24 Hitachi Metals Ltd Sintered permanent magnet with good thermal stability - containing defined percentages by weight of specified elements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1316375C (en) * 1982-08-21 1993-04-20 Masato Sagawa Magnetic materials and permanent magnets
US4601875A (en) * 1983-05-25 1986-07-22 Sumitomo Special Metals Co., Ltd. Process for producing magnetic materials
EP0265006A1 (en) * 1986-10-13 1988-04-27 Koninklijke Philips Electronics N.V. Method of manufacturing a permanent magnet
US5147447A (en) * 1988-06-03 1992-09-15 Mitsubishi Materials Corporation Sintered rare earth metal-boron-iron alloy magnets and a method for their production
US5000800A (en) * 1988-06-03 1991-03-19 Masato Sagawa Permanent magnet and method for producing the same
AT393177B (en) * 1989-04-28 1991-08-26 Boehler Gmbh PERMANENT MAGNET (MATERIAL) AND METHOD FOR PRODUCING THE SAME

Also Published As

Publication number Publication date
ATE114383T1 (en) 1994-12-15
PL293427A1 (en) 1992-10-19
CZ281161B6 (en) 1996-07-17
CZ39292A3 (en) 1993-12-15
HU9200403D0 (en) 1992-04-28
EP0499600B1 (en) 1994-11-23
AT398861B (en) 1995-02-27
DE59200795D1 (en) 1995-01-05
HU213284B (en) 1997-04-28
ATA28791A (en) 1994-06-15
EP0499600A1 (en) 1992-08-19
PL169844B1 (en) 1996-09-30

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Legal Events

Date Code Title Description
DGB9 Succession in title of applicant

Owner name: VACUUMSCHMELZE GMBH, DE

HMM4 Cancellation of final prot. due to non-payment of fee