GB634504A - Improvements in or relating to magnetic cores for use at high frequencies - Google Patents

Improvements in or relating to magnetic cores for use at high frequencies

Info

Publication number
GB634504A
GB634504A GB8015/47A GB801547A GB634504A GB 634504 A GB634504 A GB 634504A GB 8015/47 A GB8015/47 A GB 8015/47A GB 801547 A GB801547 A GB 801547A GB 634504 A GB634504 A GB 634504A
Authority
GB
United Kingdom
Prior art keywords
oxygen
mixture
hour
ferrite
heated
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
Application number
GB8015/47A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PHILLIPS LAMPS Ltd
Original Assignee
PHILLIPS LAMPS Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PHILLIPS LAMPS Ltd filed Critical PHILLIPS LAMPS Ltd
Publication of GB634504A publication Critical patent/GB634504A/en
Expired legal-status Critical Current

Links

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
    • C04B35/265—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)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
GB8015/47A 1946-03-27 1947-03-24 Improvements in or relating to magnetic cores for use at high frequencies Expired GB634504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL269325X 1946-03-27

Publications (1)

Publication Number Publication Date
GB634504A true GB634504A (en) 1950-03-22

Family

ID=19781855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8015/47A Expired GB634504A (en) 1946-03-27 1947-03-24 Improvements in or relating to magnetic cores for use at high frequencies

Country Status (4)

Country Link
BE (1) BE472170A (en:Method)
CH (1) CH269325A (en:Method)
FR (1) FR943955A (en:Method)
GB (1) GB634504A (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019279B (de) * 1957-05-27 1957-11-14 Drummond Patents Ltd Vorrichtung zum Nassreinigen und Waschen von Luft oder Gasen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1035737B (de) * 1953-12-07 1958-08-07 Licentia Gmbh Halbleiterkoerper mit grossem negativem Temperaturkoeffizienten
DE1088627B (de) * 1955-07-16 1960-09-08 Siemens Ag Verfahren zur Herstellung eines magnetisierbaren Kernes aus Ferrit
NL282192A (en:Method) * 1962-08-16
DE1278921B (de) * 1963-09-06 1968-09-26 Siemens Ag Verfahren zur Verbesserung der zeitlichen Permeabilitaetskonstanz von Mangan-Zink-Ferritkernen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019279B (de) * 1957-05-27 1957-11-14 Drummond Patents Ltd Vorrichtung zum Nassreinigen und Waschen von Luft oder Gasen

Also Published As

Publication number Publication date
CH269325A (de) 1950-06-30
FR943955A (fr) 1949-03-23
BE472170A (en:Method)

Similar Documents

Publication Publication Date Title
US2579978A (en) Soft ferromagnetic material and method of making same
US2551711A (en) Manganese zinc ferrite core
GB673720A (en) Magnetic core composition and method of producing the same
GB661721A (en) Magnetic core composition and method for producing the same
US2751353A (en) Magnetic material
GB634504A (en) Improvements in or relating to magnetic cores for use at high frequencies
GB906119A (en) Mixed ferrospinels
GB759244A (en) Improvements in or relating to a method of producing non-metallic magnetic cores having substantially rectangular hysteresis loops
GB823971A (en) Improvements in or relating to ferromagnetic ferrite materials
GB839860A (en) Improvements in or relating to ferromagnetic ferrite materials
GB739069A (en) Improvements in or relating to methods of manufacturing magnetic ferrites
GB780975A (en) Manufacture of metal oxides and of ferrites
GB842005A (en) Improvements in or relating to ferromagnetic materials
GB668700A (en) Ceramic magnetic materials with high saturation flux density
GB759245A (en) Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop
GB674828A (en) Improvements in or relating to the manufacture of magnetic materials
US3057802A (en) Magnetic materials of the high permeability ferrite type
GB759248A (en) Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop
GB669571A (en) Improvements in or relating to magnet cores for electromagnetic devices
US3019189A (en) Mixed ferrites by a coprecipitation process
US3180833A (en) Molybdenum oxide containing high permeability zinc-manganese ferrite
US3450635A (en) Nickel ferrites containing cobalt,lead and silicon
GB756374A (en) A method for the manufacture of ferrite cores
GB789099A (en) Improvements in or relating to a method of producing magnetic cores
GB797168A (en) Improvements in or relating to ferrite material for use at microwave frequencies andto methods of manufacturing such material