GB734243A - Improvements in or relating to ferromagnetic ferrite cores - Google Patents
Improvements in or relating to ferromagnetic ferrite coresInfo
- Publication number
- GB734243A GB734243A GB18796/53A GB1879653A GB734243A GB 734243 A GB734243 A GB 734243A GB 18796/53 A GB18796/53 A GB 18796/53A GB 1879653 A GB1879653 A GB 1879653A GB 734243 A GB734243 A GB 734243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- temperature
- july
- permeability
- nickel
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title abstract 4
- 230000005294 ferromagnetic effect Effects 0.000 title abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 230000005291 magnetic effect Effects 0.000 abstract 2
- BAVMXDNHWGQCSR-UHFFFAOYSA-N 1-[2-(2,3-dimethylphenyl)ethyl]-2,3-dimethylbenzene Chemical group CC1=CC=CC(CCC=2C(=C(C)C=CC=2)C)=C1C BAVMXDNHWGQCSR-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin 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
- 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
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0311—Compounds
- H01F1/0313—Oxidic compounds
- H01F1/0315—Ferrites
-
- 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
Abstract
734,243. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 7, 1953 [July 10, 1952], No. 18796/53. Drawings to Specification. Class 38 (2). A ferromagnetic ferrite core having an initial permeability which is substantially constant over a range of temperature, comprises two or more layers of ferrite material having mutually differing initial permeability-temperature characteristics over that temperature range. Examples are described in which ring cores consist of two layers of equal or differing thicknesses of nickel zinc ferrites, the proportion of nickel to zinc varying between the layers. These layers may adhere by being moulded from superposed layers of powder, they may be clamped together, or stuck together with a non- magnetic binder, e.g. an ethoxylene resin. The results are illustrated by permeability-temperature curves. The layers may have different Curie points.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US734243XA | 1952-07-10 | 1952-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB734243A true GB734243A (en) | 1955-07-27 |
Family
ID=22113609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18796/53A Expired GB734243A (en) | 1952-07-10 | 1953-07-07 | Improvements in or relating to ferromagnetic ferrite cores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB734243A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3028337A (en) * | 1957-10-15 | 1962-04-03 | Ibm | Method of preparing ferrite cores |
| US3065181A (en) * | 1956-09-24 | 1962-11-20 | Sprague Electric Co | Inductor materials |
| CN107658092A (en) * | 2016-07-25 | 2018-02-02 | 施耐德电气工业公司 | FERRITE CORE, current transformer and earth leakage circuit-breaker |
-
1953
- 1953-07-07 GB GB18796/53A patent/GB734243A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3065181A (en) * | 1956-09-24 | 1962-11-20 | Sprague Electric Co | Inductor materials |
| US3028337A (en) * | 1957-10-15 | 1962-04-03 | Ibm | Method of preparing ferrite cores |
| CN107658092A (en) * | 2016-07-25 | 2018-02-02 | 施耐德电气工业公司 | FERRITE CORE, current transformer and earth leakage circuit-breaker |
| GB2553908A (en) * | 2016-07-25 | 2018-03-21 | Schneider Electric Ind Sas | Ferrite core, current mutual inductor and current leakage protection switch |
| AU2017208249B2 (en) * | 2016-07-25 | 2021-08-05 | Schneider Electric Industries Sas | Ferrite core, current transformer and leakage protection switch |
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