JPS57118604A - Rare-earth metal-cobalt permanent magnet - Google Patents
Rare-earth metal-cobalt permanent magnetInfo
- Publication number
- JPS57118604A JPS57118604A JP56004878A JP487881A JPS57118604A JP S57118604 A JPS57118604 A JP S57118604A JP 56004878 A JP56004878 A JP 56004878A JP 487881 A JP487881 A JP 487881A JP S57118604 A JPS57118604 A JP S57118604A
- Authority
- JP
- Japan
- Prior art keywords
- ingot
- alloy
- rare
- permanent magnet
- earth metal
- 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.)
- Granted
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
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)
Abstract
PURPOSE:To promote columnar crystallization of alloy ingot, by adding such special elements as S, Se, Te, Ce, Pb, Cd, Bi, and Si to Sm-Co-Fe-Zr alloy. CONSTITUTION:An ingot is made by casting the alloy which is composed of Sm, Co, Cu, Fe, Zr, and M (M: more than at least one kind of S, Se, Te, Pb, Cd, and Bi), and has main ingredients of Sm2Co17 type crystallization (compound range: 0<U<0.2, 0<V<0.5, 0<W<0.1, 0<X<0.1, 6.5<=Z<=9) when expressed as Sm(Co1-u-w-xCuuFevZrwMx)z in a compound equation with atomic ratio. Adding the elements M results in the increase of columnar structure. The ingot is made a magnet by heat-treating, grinding, mixing with binder, forming in a magnetic field, and hardening the binder. This makes a magnet of high performance obtainable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56004878A JPS57118604A (en) | 1981-01-16 | 1981-01-16 | Rare-earth metal-cobalt permanent magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56004878A JPS57118604A (en) | 1981-01-16 | 1981-01-16 | Rare-earth metal-cobalt permanent magnet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57118604A true JPS57118604A (en) | 1982-07-23 |
JPS6111447B2 JPS6111447B2 (en) | 1986-04-03 |
Family
ID=11595921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56004878A Granted JPS57118604A (en) | 1981-01-16 | 1981-01-16 | Rare-earth metal-cobalt permanent magnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57118604A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5183517A (en) * | 1988-12-08 | 1993-02-02 | Fuji Electrochemical Co., Ltd. | Permanent magnet composition |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63268884A (en) * | 1987-04-24 | 1988-11-07 | 永井 五一郎 | Card key device for automobile |
-
1981
- 1981-01-16 JP JP56004878A patent/JPS57118604A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5183517A (en) * | 1988-12-08 | 1993-02-02 | Fuji Electrochemical Co., Ltd. | Permanent magnet composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6111447B2 (en) | 1986-04-03 |
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