GB1187853A - Improvements relating to Permanent Magnets. - Google Patents
Improvements relating to Permanent Magnets.Info
- Publication number
- GB1187853A GB1187853A GB27915/67A GB2791567A GB1187853A GB 1187853 A GB1187853 A GB 1187853A GB 27915/67 A GB27915/67 A GB 27915/67A GB 2791567 A GB2791567 A GB 2791567A GB 1187853 A GB1187853 A GB 1187853A
- Authority
- GB
- United Kingdom
- Prior art keywords
- combination
- june
- alloy
- cooling
- rare earth
- 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
-
- 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
- C22C19/00—Alloys based on nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
1,187,853. Cobalt alloys. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 16, 1967 [June 16, 1966], No.27915/67. Heading C7A. [Also in Divisions C1 and H1] A magnetic Co alloy has the formula M 5 R where M is Co or a combination of Co with one or more of Fe, Cu, Ni, and R is La, Th, a combination of Th with one or more rare earth metals, or a combination of at least 3 rare earth metals, and has a hexagonal crystal structure and a particle size of less than 100 microns. The alloy is made by melting the components M and R, cooling, annealing in a non-oxidizing atmosphere, e. g. at 900-1100 C. in Ar, cooling to room temperature, e. g. by quenching pulversing, and optionally baking. Alloys expemplified are: Co 5 La Co 5 Th Co 4 Cu La Co 3 Fe 2 Th Co 5 Th o . 2 Yo.8 Co 5 La 0À33 Sm 0À33 Th 0À34 Co 5 La 0À5 Ce 0À25 Sm 0À25 It is also stated that if M is Co + Fe, when R is La the maximum Fe content is 5 at. per cent, and when R is Th it is 60 at. per cent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6608335A NL6608335A (en) | 1966-06-16 | 1966-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1187853A true GB1187853A (en) | 1970-04-15 |
Family
ID=19796894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27915/67A Expired GB1187853A (en) | 1966-06-16 | 1967-06-16 | Improvements relating to Permanent Magnets. |
Country Status (11)
Country | Link |
---|---|
US (1) | US3546030A (en) |
AT (1) | AT286657B (en) |
BE (1) | BE700002A (en) |
CH (1) | CH499857A (en) |
DE (1) | DE1558550B2 (en) |
DK (1) | DK117970B (en) |
ES (1) | ES341762A1 (en) |
GB (1) | GB1187853A (en) |
NL (1) | NL6608335A (en) |
NO (1) | NO122852B (en) |
SE (1) | SE332866B (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3839102A (en) * | 1967-11-15 | 1974-10-01 | Matsushita Electric Ind Co Ltd | Permanent magnet |
US3790414A (en) * | 1967-11-15 | 1974-02-05 | Matsushita Electric Ind Co Ltd | As-CAST, RARE-EARTH-Co-Cu PERMANENT MAGNET MATERIAL |
US3664892A (en) * | 1968-01-31 | 1972-05-23 | Gen Electric | Permanent magnet material powders having superior magnetic characteristics |
NL6906305A (en) * | 1969-01-24 | 1970-10-27 | ||
US3625779A (en) * | 1969-08-21 | 1971-12-07 | Gen Electric | Reduction-fusion process for the production of rare earth intermetallic compounds |
US3956031A (en) * | 1969-12-24 | 1976-05-11 | Texas Instruments Incorporated | Magnetic materials and the formation thereof |
US3655464A (en) * | 1970-04-30 | 1972-04-11 | Gen Electric | Process of preparing a liquid sintered cobalt-rare earth intermetallic product |
US3919004A (en) * | 1970-04-30 | 1975-11-11 | Gen Electric | Liquid sintered cobalt-rare earth intermetallic product |
US3655463A (en) * | 1970-04-30 | 1972-04-11 | Gen Electric | Sintered cobalt-rare earth intermetallic process using solid sintering additive |
US3652343A (en) * | 1970-09-14 | 1972-03-28 | Gen Electric | Permanent magnet material powders having superior magnetic characteristics |
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 |
US3905839A (en) * | 1971-12-17 | 1975-09-16 | Gen Electric | Liquid sintered cobalt-rare earth intermetallic product |
US3919003A (en) * | 1971-12-17 | 1975-11-11 | Gen Electric | Sintered cobalt-rare earth intermetallic product |
US4003767A (en) * | 1971-12-27 | 1977-01-18 | Bbc Brown Boveri & Company Limited | Procedure for the production of permanent magnetic sinter bodies using a ternary cobalt-lanthanoid compound |
US3844850A (en) * | 1972-04-17 | 1974-10-29 | Gen Electric | Large grain cobalt-samarium intermetallic permanent magnet material and process |
US3919002A (en) * | 1972-06-15 | 1975-11-11 | Gen Electric | Sintered cobalt-rare earth intermetallic product |
US3856579A (en) * | 1972-12-04 | 1974-12-24 | Battelle Development Corp | Sputtered magnetic materials comprising rare-earth metals and method of preparation |
FR2217430B1 (en) * | 1973-02-09 | 1976-10-08 | Matsushita Electric Ind Co Ltd | |
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 |
FR2295130A1 (en) * | 1974-08-27 | 1976-07-16 | Aimants Ugimag Sa | COMPOSITION FOR PERMANENT MAGNETS OF THE "RARE-EARTH - TRANSITION METALS" FAMILY AND METHOD OF MANUFACTURING SUCH A MAGNET |
JPS52115000A (en) * | 1976-03-22 | 1977-09-27 | Tdk Corp | Material of permanent magnet |
US4210471A (en) * | 1976-02-10 | 1980-07-01 | Tdk Electronics, Co., Ltd. | Permanent magnet material and process for producing the same |
US4213803A (en) * | 1976-08-31 | 1980-07-22 | Tdk Electronics Company Limited | R2 Co17 Rare type-earth-cobalt, permanent magnet material and process for producing the same |
US4370296A (en) * | 1978-03-21 | 1983-01-25 | Fdx Associates, L.P. | Toroidal fusion reactor having ohmic heating coil substantially adjacent toroidal fusion region |
US4370295A (en) * | 1978-03-21 | 1983-01-25 | Fdx Associates, L.P. | Fusion-fission power generating device having fissile-fertile material within the region of the toroidal field coils generating means |
JPS601940B2 (en) * | 1980-08-11 | 1985-01-18 | 富士通株式会社 | Temperature sensing element material |
DE3040342C2 (en) * | 1980-10-25 | 1982-08-12 | Th. Goldschmidt Ag, 4300 Essen | Alloy suitable for making a permanent magnet |
JPS57100705A (en) * | 1980-12-16 | 1982-06-23 | Seiko Epson Corp | Permanent magnet |
US5382303A (en) * | 1992-04-13 | 1995-01-17 | Sps Technologies, Inc. | Permanent magnets and methods for their fabrication |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2813789A (en) * | 1952-04-08 | 1957-11-19 | Glaser Louis | Permanent magnet alloys |
US3102002A (en) * | 1960-03-25 | 1963-08-27 | Univ Pittsburgh | Ferromagnetic materials prepared from lanthanons and transition metals |
US3326637A (en) * | 1963-12-27 | 1967-06-20 | Ibm | Ferromagnetic intermetallic compounds and method of preparation |
US3342591A (en) * | 1964-08-31 | 1967-09-19 | Ibm | Ferromagnetic compounds and method of preparation |
US3421889A (en) * | 1966-01-13 | 1969-01-14 | Us Air Force | Magnetic rare earth-cobalt alloys |
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 |
-
1966
- 1966-06-16 NL NL6608335A patent/NL6608335A/xx unknown
-
1967
- 1967-06-07 US US644101A patent/US3546030A/en not_active Expired - Lifetime
- 1967-06-13 DE DE1967N0030688 patent/DE1558550B2/en not_active Ceased
- 1967-06-13 CH CH832467A patent/CH499857A/en not_active IP Right Cessation
- 1967-06-13 DK DK307367AA patent/DK117970B/en unknown
- 1967-06-13 NO NO168582A patent/NO122852B/no unknown
- 1967-06-13 SE SE08322/67A patent/SE332866B/xx unknown
- 1967-06-13 AT AT549567A patent/AT286657B/en not_active IP Right Cessation
- 1967-06-14 ES ES341762A patent/ES341762A1/en not_active Expired
- 1967-06-15 BE BE700002D patent/BE700002A/xx unknown
- 1967-06-16 GB GB27915/67A patent/GB1187853A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1558550A1 (en) | 1970-04-09 |
DK117970B (en) | 1970-06-22 |
US3546030A (en) | 1970-12-08 |
BE700002A (en) | 1967-12-15 |
NL6608335A (en) | 1967-12-18 |
ES341762A1 (en) | 1968-10-16 |
NO122852B (en) | 1971-08-23 |
DE1558550B2 (en) | 1977-06-30 |
CH499857A (en) | 1970-11-30 |
AT286657B (en) | 1970-12-28 |
SE332866B (en) | 1971-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1187853A (en) | Improvements relating to Permanent Magnets. | |
GB1457145A (en) | Permanent magnets | |
IL31907A (en) | Permanent magnetic materials | |
GB1347763A (en) | Sintering cobalt-rare earth intermetallic product and process using solid sintering additive | |
GB1320774A (en) | Nickel-base alloys | |
GB1369546A (en) | Heat treatment process for producing stabilized permanent magnet materials | |
GB1225079A (en) | ||
GB1481778A (en) | Copper-hardened permanentmagnet alloy | |
GB1318965A (en) | Rare earth intermetallic compounds by a reduction-diffusion process | |
GB1168761A (en) | Improvements in or relating to the manufacture of Magnetically Soft Nickel Base Alloys | |
GB1299257A (en) | Titanium-based alloys | |
GB1160788A (en) | Improvements in or relating to the Manufacture of Magnetically Soft Metallic Materials | |
GB1281164A (en) | Improvements in and relating to ferrous alloys | |
GB999438A (en) | Improvements in copper-nickel alloys | |
JPS58108708A (en) | Rare earth permanent magnet material | |
US3203838A (en) | Method of manufacturing permanent magnets having large coercive force | |
GB1209437A (en) | Improvements in or relating to magnetic materials having a nickel-iron basis | |
GB1347764A (en) | Heat-aged sintered cobalt-rare earth intermetallic product and process | |
GB1151178A (en) | Chromium-Iron-Nickel Alloys when used in Corrosive Atmospheres | |
GB1265714A (en) | ||
ES351660A1 (en) | Improved Sintered Alloys | |
GB1537427A (en) | Permanent magnet material and process for producing the same | |
GB1373019A (en) | Cobalt-based sintered permanent magnets | |
GB1127104A (en) | Electrical conductors and alloys for use therein | |
GB1431151A (en) | Alloy |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |