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GB902784A - Ferrite material containing fluorine - Google Patents

Ferrite material containing fluorine

Info

Publication number
GB902784A
GB902784A GB13490/60A GB1349060A GB902784A GB 902784 A GB902784 A GB 902784A GB 13490/60 A GB13490/60 A GB 13490/60A GB 1349060 A GB1349060 A GB 1349060A GB 902784 A GB902784 A GB 902784A
Authority
GB
United Kingdom
Prior art keywords
bivalent
oxide
april
magnetic
material containing
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
GB13490/60A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB902784A publication Critical patent/GB902784A/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
    • C04B35/2633—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 barium, strontium or calcium
    • 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
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)

Abstract

902,784. Magnetic compositions. FREI, E. H., SCHIEBER, M., and SHTRIKMAN, S. April 14, 1960 [April 15, 1959], No. 13490/60. Drawings to Specification. Class 38 (2). Ferromagnetic materials exhibiting a hexagonal magneto-plumbite structure have the formula Me 1 F 2 .5Fe 2 O 3 .2Me 2 O, wherein Me 1 is an alkaline earth or bivalent lead and Me 2 is magnesium, zinc, bivalent iron or bivalent cobalt. In preparation, the material Me 1 F 2 (e.g. BaF 2 ) is mixed with ferric oxide and, if required, the bivalent oxide Me 2 O or one of its oxide-yielding compounds. The mixture is ground and prefired at 1000‹ C. or 1100‹ C., magnetized and washed in a magnetic field to remove non-magnetic material. The ground mass is then pressed into shape under 500 kg./cm. in a field of 7000 Oe, dried for 2 hours at 120‹ C. and sintered at 1250‹ C. or 1280‹ C. in an atmosphere of dry oxygen.
GB13490/60A 1959-04-15 1960-04-14 Ferrite material containing fluorine Expired GB902784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US806655A US3093453A (en) 1959-04-15 1959-04-15 Ferrite material containing fluorine

Publications (1)

Publication Number Publication Date
GB902784A true GB902784A (en) 1962-08-09

Family

ID=25194530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13490/60A Expired GB902784A (en) 1959-04-15 1960-04-14 Ferrite material containing fluorine

Country Status (2)

Country Link
US (1) US3093453A (en)
GB (1) GB902784A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227653A (en) * 1962-07-02 1966-01-04 Yeda Res & Dev Fluorine containing spinel-type ferrites
US3365269A (en) * 1964-09-14 1968-01-23 Du Pont Ferromagnetic metal oxyfluorides
US4243697A (en) * 1979-03-14 1981-01-06 The United States Of America As Represented By The Secretary Of The Air Force Self biased ferrite resonators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736708A (en) * 1951-06-08 1956-02-28 Henry L Crowley & Company Inc Magnetic compositions
IT492518A (en) * 1951-10-30
NL93755C (en) * 1951-12-21
GB842005A (en) * 1955-08-10 1960-07-20 Philips Electrical Ind Ltd Improvements in or relating to ferromagnetic materials
US2893830A (en) * 1957-07-19 1959-07-07 Du Pont Ferromagnetic material of the formula bafe3o5f and its preparation
US2962345A (en) * 1957-11-29 1960-11-29 Du Pont Fluorine-containing ferromagnetic material

Also Published As

Publication number Publication date
US3093453A (en) 1963-06-11

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