GB1058203A - Improvements in or relating to ferrite compositions - Google Patents

Improvements in or relating to ferrite compositions

Info

Publication number
GB1058203A
GB1058203A GB30551/63A GB3055163A GB1058203A GB 1058203 A GB1058203 A GB 1058203A GB 30551/63 A GB30551/63 A GB 30551/63A GB 3055163 A GB3055163 A GB 3055163A GB 1058203 A GB1058203 A GB 1058203A
Authority
GB
United Kingdom
Prior art keywords
palladium
platinum
aug
effect
separate phase
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
GB30551/63A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1058203A publication Critical patent/GB1058203A/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
    • C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1,058,203. Magnetic compositions. WESTERN ELECTRIC CO. Inc. Aug. 1, 1963 [Aug. 3, 1962], No. 30551/63. Heading H1H. A square loop manganese ferrite contains between 0À5 and 20% by weight of palladium and/or platinum. The palladium or platinum exists as a separate phase in particles 1500 Š long and the effect of the separate phase is to inhibit domain wall movement. A memory matrix is described, in which each element has a sintered toroidal core of the material and flux switching takes place by domain rotation, thus achieving faster switching times than in known toroidal cores. Examples are given showing the effect of different proportions of palladium or platinum and different firing times.
GB30551/63A 1962-08-03 1963-08-01 Improvements in or relating to ferrite compositions Expired GB1058203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21459662A 1962-08-03 1962-08-03

Publications (1)

Publication Number Publication Date
GB1058203A true GB1058203A (en) 1967-02-08

Family

ID=22799702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30551/63A Expired GB1058203A (en) 1962-08-03 1963-08-01 Improvements in or relating to ferrite compositions

Country Status (3)

Country Link
FR (1) FR1364488A (en)
GB (1) GB1058203A (en)
NL (1) NL296030A (en)

Also Published As

Publication number Publication date
NL296030A (en)
FR1364488A (en) 1964-06-19

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