GB756374A - A method for the manufacture of ferrite cores - Google Patents
A method for the manufacture of ferrite coresInfo
- Publication number
- GB756374A GB756374A GB30480/53A GB3048053A GB756374A GB 756374 A GB756374 A GB 756374A GB 30480/53 A GB30480/53 A GB 30480/53A GB 3048053 A GB3048053 A GB 3048053A GB 756374 A GB756374 A GB 756374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nov
- added
- cobalt oxide
- molecular ratios
- manufacture
- 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
- 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
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Abstract
756,374. Magnetic compositions. LICENTIA PATENT - VERWALTUNGS - GES. Nov. 4, 1953 [Nov. 8, 1952], No. 30480/53. Class 38 (2). A ferrite composition for a magnetic core, having a loss angle related to unit permeability smaller than 0.006 over a frequency range of several hundred ketocycles, comprises Fe 2 0 3' NcO, ZnO, and CoO in the molecular ratios 50 : 16 : 34-x : x where x has a value between 0.1 and 5. A suitable composition is made by heating at 950‹ C. a mixture of iron, nickel and zinc oxides in the molecular ratios 50 : 16 : 33.8 to which 0.2 mol. per cent cobalt oxide has been added, griding, compressing into annular cores and firing below 1200‹ C. e.g. at 1050‹ C. for 2 hours. The cobalt oxide may be added as cobalt carbonate together with an organic binder for assisting in the pressing operation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE756374X | 1952-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB756374A true GB756374A (en) | 1956-09-05 |
Family
ID=6659818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30480/53A Expired GB756374A (en) | 1952-11-08 | 1953-11-04 | A method for the manufacture of ferrite cores |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB756374A (en) |
NL (1) | NL100075C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2985591A (en) * | 1956-10-30 | 1961-05-23 | Philips Nv | Ferrite core and method of making |
US2989473A (en) * | 1955-10-20 | 1961-06-20 | Steatit Magnesia Ag | Ferrite with constricted magnetic hysteresis loop |
US2995517A (en) * | 1956-02-16 | 1961-08-08 | Plessey Co Ltd | Ferrites containing niobium |
US3020426A (en) * | 1956-02-14 | 1962-02-06 | Philips Corp | Ferromagnetic material |
US3142645A (en) * | 1958-08-11 | 1964-07-28 | Steatit Magnesia Ag | Ferromagnetic, ceramic body with a high quality factor at high frequency |
-
0
- NL NL100075D patent/NL100075C/xx active
-
1953
- 1953-11-04 GB GB30480/53A patent/GB756374A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2989473A (en) * | 1955-10-20 | 1961-06-20 | Steatit Magnesia Ag | Ferrite with constricted magnetic hysteresis loop |
US2989472A (en) * | 1955-10-20 | 1961-06-20 | Steatit Magnesia Ag | Ferrite with constricted magnetic hysteresis loop |
US3020426A (en) * | 1956-02-14 | 1962-02-06 | Philips Corp | Ferromagnetic material |
US2995517A (en) * | 1956-02-16 | 1961-08-08 | Plessey Co Ltd | Ferrites containing niobium |
US2985591A (en) * | 1956-10-30 | 1961-05-23 | Philips Nv | Ferrite core and method of making |
US3142645A (en) * | 1958-08-11 | 1964-07-28 | Steatit Magnesia Ag | Ferromagnetic, ceramic body with a high quality factor at high frequency |
Also Published As
Publication number | Publication date |
---|---|
NL100075C (en) |
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