JPS57120307A - Rare earth cobalt permanent magnet - Google Patents

Rare earth cobalt permanent magnet

Info

Publication number
JPS57120307A
JPS57120307A JP56007036A JP703681A JPS57120307A JP S57120307 A JPS57120307 A JP S57120307A JP 56007036 A JP56007036 A JP 56007036A JP 703681 A JP703681 A JP 703681A JP S57120307 A JPS57120307 A JP S57120307A
Authority
JP
Japan
Prior art keywords
composition
ingot
permanent magnet
rare earth
alloy
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
JP56007036A
Other languages
Japanese (ja)
Inventor
Tsuyoshi Kitabayashi
Tatsuya Shimoda
Itaru Okonogi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP56007036A priority Critical patent/JPS57120307A/en
Publication of JPS57120307A publication Critical patent/JPS57120307A/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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together

Abstract

PURPOSE:To provide high performance of resin, metal or ceramic bond Sm2Co17 type magnet by adding ultrafine quantity of S, Se, Te, Ce, Pb, Cd, Bi or Si to an Sm-Co-Cu-Fe-Ta alloy, thereby accelerating the columnar crystal growth of an alloy ingot. CONSTITUTION:When the composition of an alloy containing Sm, Co, Cu, Fe, Ta and M(M represents at least one or more of S, Se, Te, Ce, Pb, Cd, Bi and Si) is the following formula with atomc ratio: (Co1-u-v-w-xCuuFevTawMx)z the range of the composition is under the following conditions: 0<U<0.2, 0<V<0.5, 0< W<0.05, 0<X<0.1, 6.5<=Z<=9.0. An alloy containing mainly Sm2Co17 type crystal is produced with this composition, and the macrostructure of the ingot at the time of casting is columnar crystal. Then, the columnar crystal growth of the ingot is accelerated, and high performance of resin, metal or ceramic bond Sm2 Co17 type magnet is provided.
JP56007036A 1981-01-19 1981-01-19 Rare earth cobalt permanent magnet Pending JPS57120307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56007036A JPS57120307A (en) 1981-01-19 1981-01-19 Rare earth cobalt permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56007036A JPS57120307A (en) 1981-01-19 1981-01-19 Rare earth cobalt permanent magnet

Publications (1)

Publication Number Publication Date
JPS57120307A true JPS57120307A (en) 1982-07-27

Family

ID=11654805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56007036A Pending JPS57120307A (en) 1981-01-19 1981-01-19 Rare earth cobalt permanent magnet

Country Status (1)

Country Link
JP (1) JPS57120307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6328844A (en) * 1986-07-23 1988-02-06 Toshiba Corp Permanent magnet material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6328844A (en) * 1986-07-23 1988-02-06 Toshiba Corp Permanent magnet material
JPH0322457B2 (en) * 1986-07-23 1991-03-26 Tokyo Shibaura Electric Co

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