GB661721A - Magnetic core composition and method for producing the same - Google Patents
Magnetic core composition and method for producing the sameInfo
- Publication number
- GB661721A GB661721A GB15008/49A GB1500849A GB661721A GB 661721 A GB661721 A GB 661721A GB 15008/49 A GB15008/49 A GB 15008/49A GB 1500849 A GB1500849 A GB 1500849A GB 661721 A GB661721 A GB 661721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- oxides
- aldehydes
- june
- binder
- 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
- 239000000203 mixture Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 3
- 239000011230 binding agent Substances 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004202 carbamide Substances 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
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229940056960 melamin Drugs 0.000 abstract 1
- -1 melamin aldehydes Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 229910052861 titanite Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2625—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing magnesium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Ceramic Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Magnetic Ceramics (AREA)
- Compounds Of Iron (AREA)
- Soft Magnetic Materials (AREA)
Abstract
661,721. Magnetic cores. ALADDIN INDUSTRIES, Inc. June 3, 1949 [June 26, 1948], No. 15008/49. Drawings to Specification. Class 38 (ii). A high frequency magnetic core comprises by weight 60-75 per cent of Fe 2 O 3' 10-25 per cent of ZnO and 15-25 per cent of one or more of MgO, MnO 2 , Ni 2 O 4 and CO 2 O 3 . A mixture of the powdered oxides is heated at 2200-2500 F. for 2 or more hours. The product is again powdered, mixed with a binder, moulded to any desired shape, heated at about 1900-2200 F. for at least one hour and slowly cooled at say 100 F. per hour. The binder (2-8 per cent of the mixture) may be organic material such as the phenol-aldehydes, urea or melamin aldehydes, vinyl material or polystyrene and be burned off during heating. The product when used as a core in a tuned circuit increases the tuning range and has an increased value of Q. If oxides of lead and titanium (lead titanite) are added (2-12 per cent), the mechanical strength is increased, and the thermal drift of the tuned circuit is reduced, while the tuning range and Q continue to show improvement over their normal values. Examples of manufacture are described where the metals whose oxides are used in addition to those of iron and zinc, are nickel or cobalt or magnesium and manganese together. Values of above-mentioned properties of each example are set out in the Figures (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35444A US2640813A (en) | 1948-06-26 | 1948-06-26 | Reaction product of a mixed ferrite and lead titanate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB661721A true GB661721A (en) | 1951-11-28 |
Family
ID=21882716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15008/49A Expired GB661721A (en) | 1948-06-26 | 1949-06-03 | Magnetic core composition and method for producing the same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2640813A (en) |
| FR (1) | FR987672A (en) |
| GB (1) | GB661721A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1008181B (en) * | 1952-02-15 | 1957-05-09 | Steatite Res Corp | Ferromagnetic ferrites |
| DE1064412B (en) * | 1952-02-28 | 1959-08-27 | Centre Nat Rech Scient | Process for the production of an iron-manganese-magnesium-zinc ferrite |
| US3020235A (en) * | 1956-10-19 | 1962-02-06 | Philips Corp | Ferromagnetic material |
| DE1148477B (en) * | 1959-01-16 | 1963-05-09 | Siemens Ag | Process for the production of molded porcelain bodies |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1033268A (en) * | 1951-03-01 | 1953-07-09 | Centre Nat Rech Scient | Process for manufacturing mixed ferrites of manganese, magnesium and zinc, and products obtained |
| US2736708A (en) * | 1951-06-08 | 1956-02-28 | Henry L Crowley & Company Inc | Magnetic compositions |
| US2981689A (en) * | 1953-02-03 | 1961-04-25 | Steatite Res Corp | Square loop ferrites |
| DE1108605B (en) * | 1954-10-19 | 1961-06-08 | Standard Elektrik Lorenz Ag | Process for the production of manganese-zinc ferrites |
| FR1121088A (en) * | 1955-02-03 | 1956-07-20 | Lignes Telegraph Telephon | Ferromagnetic materials with rectangular hysteresis cycle |
| NL104059C (en) * | 1955-05-03 | |||
| NL114043C (en) * | 1955-06-30 | |||
| DE1204993B (en) * | 1955-09-28 | 1965-11-11 | Siemens Ag | Process for the production of magnetizable ferrite cores |
| US2950251A (en) * | 1955-09-19 | 1960-08-23 | Rca Corp | Magnetic materials having rectangular hysteresis characteristics |
| NL96342C (en) * | 1955-10-20 | |||
| US3015788A (en) * | 1956-04-13 | 1962-01-02 | Raytheon Co | Microwave device |
| US3004918A (en) * | 1956-05-01 | 1961-10-17 | Bell Telephone Labor Inc | Production of magnetic ferrite bodies |
| BE563783A (en) * | 1957-01-08 | |||
| NL108776C (en) * | 1957-04-18 | 1964-07-15 | ||
| US3109817A (en) * | 1957-05-22 | 1963-11-05 | Ncr Co | Method of making ferrite cores |
| US2981690A (en) * | 1957-06-18 | 1961-04-25 | Steatite Res Corp | Ferrites with square hysteresis loops |
| US3027327A (en) * | 1957-10-08 | 1962-03-27 | Gen Electric | Preparation of ferromagnetic ferrite materials |
| NL95813C (en) * | 1957-10-21 | 1960-11-15 | ||
| US3096288A (en) * | 1957-12-23 | 1963-07-02 | Union Carbide Corp | Ferri-magnetic spinel bodies |
| US3100194A (en) * | 1958-01-15 | 1963-08-06 | Philips Corp | Ferromagnetic material and method of making the same |
| US3072576A (en) * | 1958-05-27 | 1963-01-08 | Aladdin Ind Inc | Ferrites having rectangular hysteresis loops and method for manufacture of same |
| US3052634A (en) * | 1958-11-26 | 1962-09-04 | Hughes Aircraft Co | Low loss, high curie temperature ferrites for high power applications |
| US3007875A (en) * | 1959-06-23 | 1961-11-07 | Steatite Res Corp | Square loop ferrites |
| US2981688A (en) * | 1960-05-27 | 1961-04-25 | Steatite Res Corp | Ferrites for microwave applications |
| DE1217835B (en) * | 1963-05-31 | 1966-05-26 | Siemens Ag | Process for the production of a hot conductor made of lead oxide, manganese oxide and / or nickel oxide |
| NL8403282A (en) * | 1984-10-30 | 1986-05-16 | Philips Nv | TITANIC AND COBALT-CONTAINING MANGANESE-ZINC FERRITE CORE AND METHOD OF MANUFACTURING THE SAME |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1292206A (en) * | 1918-06-28 | 1919-01-21 | Western Electric Co | Magnet-core. |
| US1976230A (en) * | 1930-12-25 | 1934-10-09 | Mitsubishi Electric Corp | Permanent magnet and method of manufacturing same |
| US1946964A (en) * | 1933-07-11 | 1934-02-13 | Boonton Res Corp | Magnetic material and process of making the same |
| US2452529A (en) * | 1941-10-24 | 1948-10-26 | Hartford Nat Bank & Trust Co | Magnet core |
| US2452530A (en) * | 1943-05-15 | 1948-10-26 | Hartford Nat Bank & Trust Co | Magnetic core |
| US2452531A (en) * | 1943-05-31 | 1948-10-26 | Hartford Nat Bank & Trust Co | Process of manufacturing a magnetic material and magnetic core |
| US2462162A (en) * | 1944-07-03 | 1949-02-22 | Bell Telephone Labor Inc | Metallic oxide resistor |
| US2443636A (en) * | 1945-07-10 | 1948-06-22 | Bell Telephone Labor Inc | Magnetic materials |
| US2496346A (en) * | 1945-07-30 | 1950-02-07 | Hartford Nat Bank & Trust Co | Semiconductive resistance provided with metal contacts |
-
1948
- 1948-06-26 US US35444A patent/US2640813A/en not_active Expired - Lifetime
-
1949
- 1949-05-31 FR FR987672D patent/FR987672A/en not_active Expired
- 1949-06-03 GB GB15008/49A patent/GB661721A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1008181B (en) * | 1952-02-15 | 1957-05-09 | Steatite Res Corp | Ferromagnetic ferrites |
| DE1064412B (en) * | 1952-02-28 | 1959-08-27 | Centre Nat Rech Scient | Process for the production of an iron-manganese-magnesium-zinc ferrite |
| US3020235A (en) * | 1956-10-19 | 1962-02-06 | Philips Corp | Ferromagnetic material |
| DE1148477B (en) * | 1959-01-16 | 1963-05-09 | Siemens Ag | Process for the production of molded porcelain bodies |
Also Published As
| Publication number | Publication date |
|---|---|
| FR987672A (en) | 1951-08-17 |
| US2640813A (en) | 1953-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB661721A (en) | Magnetic core composition and method for producing the same | |
| US2579978A (en) | Soft ferromagnetic material and method of making same | |
| US2736708A (en) | Magnetic compositions | |
| US2656319A (en) | Magnetic core composition and method of producing the same | |
| GB673719A (en) | Magnetic core and method for manufacturing same | |
| US2565111A (en) | Ceramic magnetic material with a small temperature coefficient | |
| US2751353A (en) | Magnetic material | |
| GB820959A (en) | Improvements in or relating to ferromagnetic materials of the ferrite type and methods of manufacturing same | |
| US2744873A (en) | Mixed nickel, zinc, vanadium ferrite | |
| US2685568A (en) | Soft ferromagnetic mixed ferrite material | |
| US2734034A (en) | Magnetic compositions | |
| GB751623A (en) | Improvements in or relating to ferromagnetic ceramic bodies | |
| US2961407A (en) | Mixed ferrite composition | |
| US2773039A (en) | Magnetically strong ferromagnetic magnesium-zinc type of ferrite | |
| US2565058A (en) | Ceramic magnetic materials with high saturation-flux density | |
| GB906119A (en) | Mixed ferrospinels | |
| GB823971A (en) | Improvements in or relating to ferromagnetic ferrite materials | |
| ES219075A1 (en) | Method of producing magnet cores having an approximately rectangular shape of the hysteresis loop | |
| GB759245A (en) | Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop | |
| US2714580A (en) | Magnetic materials and methods of making the same | |
| GB671788A (en) | Ferromagnetic bodies having high insulating properties | |
| GB1073237A (en) | Magnetic memory core material for operation over wide temperature ranges and method for producing the same | |
| US3232877A (en) | Nickel ferrite containing cobalt and manganese | |
| GB1060598A (en) | Ferromagnetic cores and processes for the preparation thereof | |
| GB763494A (en) | Improvements in or relating to magnetic ferrites |