GB1347763A - Sintering cobalt-rare earth intermetallic product and process using solid sintering additive - Google Patents
Sintering cobalt-rare earth intermetallic product and process using solid sintering additiveInfo
- Publication number
- GB1347763A GB1347763A GB1087571*[A GB1087571A GB1347763A GB 1347763 A GB1347763 A GB 1347763A GB 1087571 A GB1087571 A GB 1087571A GB 1347763 A GB1347763 A GB 1347763A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sintering
- rare earth
- cobalt
- solid
- earth intermetallic
- 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
- 238000005245 sintering Methods 0.000 title abstract 5
- 229910052761 rare earth metal Inorganic materials 0.000 title abstract 3
- 239000007787 solid Substances 0.000 title abstract 2
- 239000000654 additive Substances 0.000 title 1
- 230000000996 additive effect Effects 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 2
- 229910001122 Mischmetal Inorganic materials 0.000 abstract 1
- 229910000691 Re alloy Inorganic materials 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 abstract 1
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
- H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
Abstract
1347763 Cobalt - rare earth alloys GENERAL ELECTRIC CO 22 April 1971 [30 April 1970] 10875/71 Headings C7A, C7D A sintered product comprises at least 65% of Co 5 RE (RE being a rare earth, including Y) and up to 35% of a Co-RE phase richer in RE than the Co 5 RE. The product may be Co- Smmisch metal, Co - Ce - Pr, Co - Y - Pr or Co - Pr - mischmetal. The alloy may be produced by pressing and sintering a mixture of COs RE powder and a powder of a CO-RE alloy, richer in RE; both alloys being solid at the sintering temperature. The pressing may take place in a magnetic field. Sintering may be at 950 - 1200 C in an inert atmosphere.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3334870A | 1970-04-30 | 1970-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1347763A true GB1347763A (en) | 1974-02-27 |
Family
ID=21869888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1087571*[A Expired GB1347763A (en) | 1970-04-30 | 1971-04-22 | Sintering cobalt-rare earth intermetallic product and process using solid sintering additive |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3655463A (en) |
| JP (1) | JPS5614731B1 (en) |
| CA (1) | CA929384A (en) |
| DE (1) | DE2121453B2 (en) |
| GB (1) | GB1347763A (en) |
| NL (1) | NL7105958A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2116861A5 (en) * | 1970-12-10 | 1972-07-21 | Rech Magnetiques D Et | METHOD AND DEVICE FOR MANUFACTURING ALLOYS OF TRANSITION ELEMENTS AND METALS OF THE RARE EARTH GROUP INTENDED FOR THE PRODUCTION OF MATERIALS FOR PERMANENT MAGNETS |
| US3755007A (en) * | 1971-04-01 | 1973-08-28 | Gen Electric | Stabilized permanent magnet comprising a sintered and quenched body of compacted cobalt-rare earth particles |
| US3919003A (en) * | 1971-12-17 | 1975-11-11 | Gen Electric | Sintered cobalt-rare earth intermetallic product |
| US3798391A (en) * | 1972-06-22 | 1974-03-19 | Gen Electric | Movable magnet loudspeaker |
| US3858308A (en) * | 1973-06-22 | 1975-01-07 | Bendix Corp | Process for making a rotor assembly |
| JPS5724058B2 (en) * | 1973-11-12 | 1982-05-21 | ||
| US4075042A (en) * | 1973-11-16 | 1978-02-21 | Raytheon Company | Samarium-cobalt magnet with grain growth inhibited SmCo5 crystals |
| US3892598A (en) * | 1974-01-07 | 1975-07-01 | Gen Electric | Cobalt-rare earth magnets comprising sintered products bonded with solid cobalt-rare earth bonding agents |
| US3919001A (en) * | 1974-03-04 | 1975-11-11 | Crucible Inc | Sintered rare-earth cobalt magnets comprising mischmetal plus cerium-free mischmetal |
| US4092184A (en) * | 1975-10-08 | 1978-05-30 | General Electric Company | Method of preparing and installing cobalt-rare earth permanent magnets |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3425828A (en) * | 1966-03-11 | 1969-02-04 | Coast Metals Inc | Production of cobalt strip and the like |
| NL6608335A (en) * | 1966-06-16 | 1967-12-18 | ||
| US3424578A (en) * | 1967-06-05 | 1969-01-28 | Us Air Force | Method of producing permanent magnets of rare earth metals containing co,or mixtures of co,fe and mn |
| CH519361A (en) * | 1968-11-22 | 1972-02-29 | Raytheon Co | Process for manufacturing a permanent magnet |
| NL6907499A (en) * | 1969-05-14 | 1970-11-17 |
-
1970
- 1970-04-30 US US33348A patent/US3655463A/en not_active Expired - Lifetime
-
1971
- 1971-04-22 GB GB1087571*[A patent/GB1347763A/en not_active Expired
- 1971-04-28 CA CA111547A patent/CA929384A/en not_active Expired
- 1971-04-29 NL NL7105958A patent/NL7105958A/xx unknown
- 1971-04-30 JP JP2935671A patent/JPS5614731B1/ja active Pending
- 1971-04-30 DE DE2121453A patent/DE2121453B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE2121453B2 (en) | 1980-12-04 |
| US3655463A (en) | 1972-04-11 |
| CA929384A (en) | 1973-07-03 |
| DE2121453A1 (en) | 1971-11-11 |
| JPS5614731B1 (en) | 1981-04-06 |
| NL7105958A (en) | 1971-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |