JPS6447841A - Production of rare earth alloy magnet - Google Patents

Production of rare earth alloy magnet

Info

Publication number
JPS6447841A
JPS6447841A JP62199999A JP19999987A JPS6447841A JP S6447841 A JPS6447841 A JP S6447841A JP 62199999 A JP62199999 A JP 62199999A JP 19999987 A JP19999987 A JP 19999987A JP S6447841 A JPS6447841 A JP S6447841A
Authority
JP
Japan
Prior art keywords
rare earth
alloy
denotes
production
magnet
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.)
Pending
Application number
JP62199999A
Other languages
Japanese (ja)
Inventor
Jun Nakagawa
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP62199999A priority Critical patent/JPS6447841A/en
Publication of JPS6447841A publication Critical patent/JPS6447841A/en
Pending 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
    • 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
    • H01F1/0573—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 obtained by reduction or by hydrogen decrepitation or embrittlement

Landscapes

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

Abstract

PURPOSE:To produce the titled magnet having high magnetic anisotropy by letting a rare earth-transition metal-B crystallized alloy occlude hydrogen and thereafter subjecting it to heat treatment in the specific temp. range. CONSTITUTION:The R-T-M crystallized alloy (R denotes rare earth elements, T denotes transition metallic elements contg. Fe as essential components and may contain one or more kinds among Zr, Nb, Ti, V, Hf and Ta and M denotes semimetals contg. B as essential components) is ground. Hydrogen is occluded into said alloy, and after that, it is subjected to a heat treatment in the temp. range of 500-900 deg.C in a vacuum or inner gas, etc. R is preferably incorporated thereto in about 5.5-12at.% based on the total amount of said alloy. By this method, the rare earth magnet having high anisotropy and high magnetic characteristics can be obtd.
JP62199999A 1987-08-12 1987-08-12 Production of rare earth alloy magnet Pending JPS6447841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62199999A JPS6447841A (en) 1987-08-12 1987-08-12 Production of rare earth alloy magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62199999A JPS6447841A (en) 1987-08-12 1987-08-12 Production of rare earth alloy magnet

Publications (1)

Publication Number Publication Date
JPS6447841A true JPS6447841A (en) 1989-02-22

Family

ID=16417114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62199999A Pending JPS6447841A (en) 1987-08-12 1987-08-12 Production of rare earth alloy magnet

Country Status (1)

Country Link
JP (1) JPS6447841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664086A1 (en) * 1990-07-02 1992-01-03 Centre Nat Rech Scient IMPROVED PROCESS FOR THE OPTIMIZATION OF MAGNETIC PROPERTIES OF POWDER MAGNETIC MATERIALS AND PRODUCTS THUS OBTAINED.
EP0477810A2 (en) * 1990-09-26 1992-04-01 Mitsubishi Materials Corporation R-Fe-B type permanent magnet powder and bonded magnet therefrom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664086A1 (en) * 1990-07-02 1992-01-03 Centre Nat Rech Scient IMPROVED PROCESS FOR THE OPTIMIZATION OF MAGNETIC PROPERTIES OF POWDER MAGNETIC MATERIALS AND PRODUCTS THUS OBTAINED.
EP0477810A2 (en) * 1990-09-26 1992-04-01 Mitsubishi Materials Corporation R-Fe-B type permanent magnet powder and bonded magnet therefrom
US5250206A (en) * 1990-09-26 1993-10-05 Mitsubishi Materials Corporation Rare earth element-Fe-B or rare earth element-Fe-Co-B permanent magnet powder excellent in magnetic anisotropy and corrosion resistivity and bonded magnet manufactured therefrom

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