GB1548954A - Permanent magnet materials - Google Patents
Permanent magnet materialsInfo
- Publication number
- GB1548954A GB1548954A GB3690876A GB3690876A GB1548954A GB 1548954 A GB1548954 A GB 1548954A GB 3690876 A GB3690876 A GB 3690876A GB 3690876 A GB3690876 A GB 3690876A GB 1548954 A GB1548954 A GB 1548954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rare earths
- atom
- permanent magnet
- magnet materials
- samarium
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
-
- 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
-
- 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
- H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
Permanent-magnetic material containing cerium mischmetal, whose composition is based on rare earths and cobalt with an atomic ratio of rare earths to cobalt of approximately 1:5, and samarium, in which the proportion of the rare earths consists up to a half, based on the atomic ratio of the rare earths amongst themselves, of the natural alloy didymium which is produced in the metallurgical extraction of rare earths and contains approximately 75 atom% of neodymium, 22 atom% of praseodymium and up to 3 atom% of a mixture of cerium, lanthanum and samarium.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1162375A CH616776A5 (en) | 1975-09-08 | 1975-09-08 | Permanent-magnetic material containing predominantly cerium mischmetal (CeMM) and cobalt, and process for the preparation thereof. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1548954A true GB1548954A (en) | 1979-07-18 |
Family
ID=4375252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3690876A Expired GB1548954A (en) | 1975-09-08 | 1976-09-06 | Permanent magnet materials |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5233098A (en) |
CA (1) | CA1047281A (en) |
CH (1) | CH616776A5 (en) |
DE (1) | DE2543916C2 (en) |
FR (1) | FR2329759A2 (en) |
GB (1) | GB1548954A (en) |
NL (1) | NL7609901A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988004464A1 (en) * | 1986-12-10 | 1988-06-16 | Ios Spa | Rare earth-cobalt based magnetic material and permanent magnet |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1332055A (en) * | 1970-08-24 | 1973-10-03 | Gen Electric | Sintered intermetallic product and magnets produced therefrom |
FR2106019A5 (en) * | 1970-08-27 | 1972-04-28 | Philips Nv | Anisotropic non-aging permanent magnets - from sintered powdered cobalt and rare earth cpds |
-
1975
- 1975-09-08 CH CH1162375A patent/CH616776A5/en not_active IP Right Cessation
- 1975-10-01 DE DE19752543916 patent/DE2543916C2/en not_active Expired
-
1976
- 1976-09-02 CA CA260,413A patent/CA1047281A/en not_active Expired
- 1976-09-06 GB GB3690876A patent/GB1548954A/en not_active Expired
- 1976-09-07 FR FR7626932A patent/FR2329759A2/en active Granted
- 1976-09-07 NL NL7609901A patent/NL7609901A/en not_active Application Discontinuation
- 1976-09-08 JP JP51107687A patent/JPS5233098A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CA1047281A (en) | 1979-01-30 |
FR2329759B2 (en) | 1982-12-03 |
FR2329759A2 (en) | 1977-05-27 |
CH616776A5 (en) | 1980-04-15 |
DE2543916A1 (en) | 1977-03-17 |
DE2543916C2 (en) | 1986-03-20 |
JPS5233098A (en) | 1977-03-12 |
NL7609901A (en) | 1977-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |