GB849219A - Improvements in or relating to magnetic ferrites - Google Patents

Improvements in or relating to magnetic ferrites

Info

Publication number
GB849219A
GB849219A GB35588/56A GB3558856A GB849219A GB 849219 A GB849219 A GB 849219A GB 35588/56 A GB35588/56 A GB 35588/56A GB 3558856 A GB3558856 A GB 3558856A GB 849219 A GB849219 A GB 849219A
Authority
GB
United Kingdom
Prior art keywords
nov
copper
weight
relating
magnetic ferrites
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
GB35588/56A
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.)
Steatit Magnesia AG
Steatite Research Corp
Original Assignee
Steatit Magnesia AG
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 Steatit Magnesia AG, Steatite Research Corp filed Critical Steatit Magnesia AG
Publication of GB849219A publication Critical patent/GB849219A/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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/58—Processes of forming magnets

Abstract

849,219. Magnetic compositions. STEATIT-MAGNESIA A. G., and STEATITE RESEARCH CORPORATION. Nov. 21, 1956 [Nov. 21, 1955, Nov. 25, 1955], No. 35588/56. Addition to 849,217. Class 38 (2). Ferromagnetic ferrites having constricted hysteresis loops and comprising between 0.1% and 5% by weight of cobalt oxide added to copper-zinc; copper cadmium or magnesium copper ferrite, are produced as described in the parent Specification. The allowable percentages by weight of the main constituents are shown by the areas ABCD in Figs. 4-6. Reference has been directed by the Comptroller to Specification 803,625.
GB35588/56A 1955-11-21 1956-11-21 Improvements in or relating to magnetic ferrites Expired GB849219A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE849219X 1955-11-21
DE2989479X 1955-11-25

Publications (1)

Publication Number Publication Date
GB849219A true GB849219A (en) 1960-09-21

Family

ID=32394777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35588/56A Expired GB849219A (en) 1955-11-21 1956-11-21 Improvements in or relating to magnetic ferrites

Country Status (3)

Country Link
US (2) US2989477A (en)
FR (1) FR1163981A (en)
GB (1) GB849219A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633043A (en) * 1962-05-31
FR2432754A1 (en) * 1978-08-01 1980-02-29 Thomson Csf METHOD FOR MANUFACTURING A DIELECTRIC MATERIAL WITH INSULATING BARRIERS DISTRIBUTED BY VOLUME, FOR USE AT HIGH VOLTAGE, AND ELECTRONIC DEVICE MADE WITH THIS MATERIAL

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646608A (en) * 1943-02-25 1953-07-28 Hartford Nat Bank & Trust Co Process of manufacturing a magnetic material
GB645056A (en) * 1944-05-30 1950-10-25 Philips Nv Improved process of manufacturing magnetic material
US2565861A (en) * 1947-09-26 1951-08-28 Rca Corp Magnetic materials
US2549089A (en) * 1948-12-15 1951-04-17 Rca Corp Mixed ferrite compositions, including lithium ferrite
US2656319A (en) * 1949-01-03 1953-10-20 Aladdin Ind Inc Magnetic core composition and method of producing the same
GB682838A (en) * 1950-02-06 1952-11-19 Centre Nat Rech Scient Improvements in the manufacture of permanent magnets made of oxides
US2736708A (en) * 1951-06-08 1956-02-28 Henry L Crowley & Company Inc Magnetic compositions
CA525699A (en) * 1952-02-07 1956-05-29 Albers-Schoenberg Ernst Ferromagnetic ceramic materials with hysteresis loops of rectangular shape
US2723239A (en) * 1952-09-29 1955-11-08 Rca Corp Ferrospinel compositions
FR1125577A (en) * 1955-05-03 1956-11-02 Lignes Telegraph Telephon Ferromagnetic materials with rectangular hysteresis cycle
US2886530A (en) * 1955-07-19 1959-05-12 Greger Herbert Hans Process of manufacturing ceramic ferrites
FR1129275A (en) * 1955-07-28 1957-01-17 Lignes Telegraph Telephon Permanent magnets

Also Published As

Publication number Publication date
FR1163981A (en) 1958-10-03
US2989477A (en) 1961-06-20
US2989479A (en) 1961-06-20

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