JPS6467902A - Rare earth permanent magnet - Google Patents

Rare earth permanent magnet

Info

Publication number
JPS6467902A
JPS6467902A JP62224764A JP22476487A JPS6467902A JP S6467902 A JPS6467902 A JP S6467902A JP 62224764 A JP62224764 A JP 62224764A JP 22476487 A JP22476487 A JP 22476487A JP S6467902 A JPS6467902 A JP S6467902A
Authority
JP
Japan
Prior art keywords
rare earth
magnets
tetragonal system
earth permanent
range
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
JP62224764A
Other languages
Japanese (ja)
Inventor
Takeshi Ohashi
Yoshio Tawara
Toshiichi Yokoyama
Makoto Osugi
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP62224764A priority Critical patent/JPS6467902A/en
Publication of JPS6467902A publication Critical patent/JPS6467902A/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

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 achieve the stabilization of tetragonal system compounds and obtain a rare earth permanent magnet having high magnetic characteristics instead of Sm-Co system magnets using expensive Co, by adding the prescribed amount of Ti to R-Fe system magnets. CONSTITUTION:The ingredients of magnets are exhibited by an expression: RxTiyFe100-x-y where R represents one kind or two kinds or more of rare earth elements including Y; x represents the range of 12-30%; y represents the range of 1-10% and their principal phases take pad in rare earth permanent magnets having a body-centered tetragonal system structure. R comprises rare earth elements: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, as well as Y. when R is beyond the above range, the body-centered tetragonal system ThMn12 structure lacks stability and coercive force, when R is 12% or less, or coercivity, when R is 30% or more, decreases extremely. Further, when Ti is beyond the above range, the body-centered tetragonal system ThMn12 structure lacks stability and in particular when Ti is 10% of more, as the ratio of tetragonal system structure decreases, it is necessary to maintain the above ranges.
JP62224764A 1987-09-08 1987-09-08 Rare earth permanent magnet Pending JPS6467902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224764A JPS6467902A (en) 1987-09-08 1987-09-08 Rare earth permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224764A JPS6467902A (en) 1987-09-08 1987-09-08 Rare earth permanent magnet

Publications (1)

Publication Number Publication Date
JPS6467902A true JPS6467902A (en) 1989-03-14

Family

ID=16818862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224764A Pending JPS6467902A (en) 1987-09-08 1987-09-08 Rare earth permanent magnet

Country Status (1)

Country Link
JP (1) JPS6467902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6475302B2 (en) 1999-12-28 2002-11-05 Kabushiki Kaisha Toshiba Permanent magnet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60144909A (en) * 1984-01-06 1985-07-31 Daido Steel Co Ltd Manufacture of permanent magnet material
JPS6328845A (en) * 1986-07-18 1988-02-06 エヌ・ベ−・フィリップス・フル−イランペンファブリケン Hard magnetic material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60144909A (en) * 1984-01-06 1985-07-31 Daido Steel Co Ltd Manufacture of permanent magnet material
JPS6328845A (en) * 1986-07-18 1988-02-06 エヌ・ベ−・フィリップス・フル−イランペンファブリケン Hard magnetic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6475302B2 (en) 1999-12-28 2002-11-05 Kabushiki Kaisha Toshiba Permanent magnet

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