GB1031629A - High permeability ferromagnetic ferrite materials - Google Patents

High permeability ferromagnetic ferrite materials

Info

Publication number
GB1031629A
GB1031629A GB1617565A GB1617565A GB1031629A GB 1031629 A GB1031629 A GB 1031629A GB 1617565 A GB1617565 A GB 1617565A GB 1617565 A GB1617565 A GB 1617565A GB 1031629 A GB1031629 A GB 1031629A
Authority
GB
United Kingdom
Prior art keywords
mol
weight
compositions
high permeability
mno
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
GB1617565A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1031629A publication Critical patent/GB1031629A/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
    • C04B35/265—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

1,031,629. Magnetic compositions. STANDARD TELEPHONES & CABLES Ltd. April 15, 1965 [April 17, 1964], No. 16175/65. Heading H1H. A manganese-zinc ferrite contains at the grain boundaries Cu and one of the metals Ca, Sb and V in order to improve the properties. In preparation the metal oxides are mixed, compressed under 1-15 metric tons/sq. cm., sintered for five hours at 1200-1300‹ C. in N 2 containing 1-5% O 2 and cooled in N 2 over 15 hours. The quantity of CuO added may lie between 0À05 and 0À5% by weight, and that of the other additional oxide between 0À1 and 2À0% by weight, the total additions being less than 2.5% by weight. The examples specify as main compositions (i.e. without the additions) the following compositions 52À5 mol. % Fe 2 O 3 , 28À3 mol. % MnO, 19À2 mol. % ZnO, 54À5 mol. % Fe 2 O3, 30À0 mol. % MnO, 15À5 mol. % ZnO.
GB1617565A 1964-04-17 1965-04-15 High permeability ferromagnetic ferrite materials Expired GB1031629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971234A FR1401286A (en) 1964-04-17 1964-04-17 Improvement in magnetic materials such as ferrite with high permeability

Publications (1)

Publication Number Publication Date
GB1031629A true GB1031629A (en) 1966-06-02

Family

ID=8827981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1617565A Expired GB1031629A (en) 1964-04-17 1965-04-15 High permeability ferromagnetic ferrite materials

Country Status (5)

Country Link
BE (1) BE662694A (en)
DE (1) DE1571561B2 (en)
FR (1) FR1401286A (en)
GB (1) GB1031629A (en)
NL (1) NL6504921A (en)

Also Published As

Publication number Publication date
DE1571561A1 (en) 1971-02-25
DE1571561B2 (en) 1973-10-04
BE662694A (en) 1965-10-20
FR1401286A (en) 1965-06-04
NL6504921A (en) 1965-10-18

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