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GB756374A - A method for the manufacture of ferrite cores - Google Patents

A method for the manufacture of ferrite cores

Info

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
Application number
GB30480/53A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB756374A publication Critical patent/GB756374A/en
Expired legal-status Critical Current

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.
GB30480/53A 1952-11-08 1953-11-04 A method for the manufacture of ferrite cores Expired GB756374A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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