GB668700A - Ceramic magnetic materials with high saturation flux density - Google Patents

Ceramic magnetic materials with high saturation flux density

Info

Publication number
GB668700A
GB668700A GB11667/50A GB1166750A GB668700A GB 668700 A GB668700 A GB 668700A GB 11667/50 A GB11667/50 A GB 11667/50A GB 1166750 A GB1166750 A GB 1166750A GB 668700 A GB668700 A GB 668700A
Authority
GB
United Kingdom
Prior art keywords
saturation flux
flux density
magnetic materials
high saturation
magnetic
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
GB11667/50A
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.)
Steatite Research Corp
Original Assignee
Steatite Research Corp
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 Steatite Research Corp filed Critical Steatite Research Corp
Publication of GB668700A publication Critical patent/GB668700A/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
    • C04B35/2608—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)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

668,700. Magnetic compositions. STEATITE RESEARCH CORPORATION. May 10, 1950 [May 26, 1949], No. 11667/50. Class 38 (ii). Magnetic mixed ferrite compositions suitable for use at frequencies up to 10 Mc/sec., having Curie points of at least 250‹ C. initial permeabilities 200-350, saturation flux-densities at least 3750 and temperature coefficients of 25- 35 per cent (measured on a toroid) between room temperature and 125‹ C., comprise the following materials within the stated mol. proportions: MgO (0.05-0.15); MnO (0.2- 0.4); ZnO (0.3-0.4); NiO (0.15-0.4); Fe 2 O 3 (about 1.0). The constituents may be added as oxides or as compounds which become oxides during firing. The components are ground, mixed with water optionally containing plasticizers such as emulsified waxes, moulded, fired at Seger cones 7-10 and cooled in air.
GB11667/50A 1949-05-26 1950-05-10 Ceramic magnetic materials with high saturation flux density Expired GB668700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US95581A US2565058A (en) 1949-05-26 1949-05-26 Ceramic magnetic materials with high saturation-flux density

Publications (1)

Publication Number Publication Date
GB668700A true GB668700A (en) 1952-03-19

Family

ID=22252655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11667/50A Expired GB668700A (en) 1949-05-26 1950-05-10 Ceramic magnetic materials with high saturation flux density

Country Status (6)

Country Link
US (1) US2565058A (en)
CH (1) CH288263A (en)
DE (1) DE907995C (en)
FR (1) FR1018561A (en)
GB (1) GB668700A (en)
NL (1) NL78165C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670331A (en) * 1951-09-28 1954-02-23 Steatite Res Corp Magnesium-zinc ceramic ferrite containing copper
GB737284A (en) * 1952-02-15 1955-09-21 Steatite Res Corp Rectangular loop ferro nagnetic materials
US2773039A (en) * 1952-11-24 1956-12-04 Steatite Res Corp Magnetically strong ferromagnetic magnesium-zinc type of ferrite
US2981903A (en) * 1954-02-26 1961-04-25 Bell Telephone Labor Inc Gyromagnetic wave transmission devices
US3023165A (en) * 1956-08-17 1962-02-27 Bell Telephone Labor Inc Magnesium ferrite containing aluminum and method of making same
US2830162A (en) * 1954-06-22 1958-04-08 Raytheon Mfg Co Heating method and apparatus
BE539375A (en) * 1954-06-30
US2981690A (en) * 1957-06-18 1961-04-25 Steatite Res Corp Ferrites with square hysteresis loops
US3031407A (en) * 1959-03-24 1962-04-24 Ibm Method of producing ferrite bodies

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE227787C (en) *
US2452529A (en) * 1941-10-24 1948-10-26 Hartford Nat Bank & Trust Co Magnet core
NL61937C (en) * 1941-10-24 1948-11-15
CH239838A (en) * 1942-06-16 1945-11-15 Philips Nv Process for the production of magnetic cores and core produced by this process.
CH265894A (en) * 1943-03-10 1949-12-31 Philips Nv Process for the production of a ferromagnetic coil jacket.
US2382136A (en) * 1943-03-13 1945-08-14 Henry L Crowley & Company Inc Ceramic bodies and method of producing same
US2452530A (en) * 1943-05-15 1948-10-26 Hartford Nat Bank & Trust Co Magnetic core
CH260717A (en) * 1943-05-31 1949-03-31 Philips Nv A method of manufacturing a magnetic core, and a magnetic core manufactured by this method.
US2452531A (en) * 1943-05-31 1948-10-26 Hartford Nat Bank & Trust Co Process of manufacturing a magnetic material and magnetic core
AT164420B (en) * 1944-07-06 1949-11-10 Philips Nv Magnetic core made from a ferromagnetic ferrite

Also Published As

Publication number Publication date
FR1018561A (en) 1953-01-09
CH288263A (en) 1953-01-15
US2565058A (en) 1951-08-21
DE907995C (en) 1954-04-01
NL78165C (en) 1955-06-15

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