GB1462305A - High frequency magnetic materials - Google Patents

High frequency magnetic materials

Info

Publication number
GB1462305A
GB1462305A GB269774A GB269774A GB1462305A GB 1462305 A GB1462305 A GB 1462305A GB 269774 A GB269774 A GB 269774A GB 269774 A GB269774 A GB 269774A GB 1462305 A GB1462305 A GB 1462305A
Authority
GB
United Kingdom
Prior art keywords
ferrite
jan
high frequency
mixture
magnetic materials
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
GB269774A
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT SA
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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Publication of GB1462305A publication Critical patent/GB1462305A/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
    • C04B35/2666—Other ferrites containing 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
    • C04B35/265—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)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1462305 Nickel ferrites LIGNES TELEGRAPHIQUES ET TELEPHONIQUES 21 Jan 1974 [25 Jan 1973] 02697/74 Heading C1J A nickel ferrite optionally containing zinc, has a spinel structure, a density higher than 95% of the theoretical density, a mean grain size of approximately one micron and the following formula on an oxide basis mFe 2 O 3 , xNiO, yZnO, zCoO where m + x + y + z = 100, 45#m#49, 29#x#52, 0#y#12, 5#z#10 for y#0 and 3#z#10 for y=0. It may be made by mixing the oxides which will form the ferrite, presintering the mixture, grinding the presintered mixture, then isostatically compressing and finally annealing at a temperature of not more than 1250‹ C. in oxygen. The ferrite has microwave applications.
GB269774A 1973-01-25 1974-01-21 High frequency magnetic materials Expired GB1462305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7302553A FR2215682B1 (en) 1973-01-25 1973-01-25

Publications (1)

Publication Number Publication Date
GB1462305A true GB1462305A (en) 1977-01-26

Family

ID=9113811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB269774A Expired GB1462305A (en) 1973-01-25 1974-01-21 High frequency magnetic materials

Country Status (3)

Country Link
DE (1) DE2402935B2 (en)
FR (1) FR2215682B1 (en)
GB (1) GB1462305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114262221A (en) * 2021-12-28 2022-04-01 北京七星飞行电子有限公司 High-temperature stable nickel-zinc ferrite material and preparation method and application thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0427103A (en) * 1990-05-22 1992-01-30 Murata Mfg Co Ltd Magnetic material for high frequency

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL103798C (en) * 1955-04-11 1900-01-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114262221A (en) * 2021-12-28 2022-04-01 北京七星飞行电子有限公司 High-temperature stable nickel-zinc ferrite material and preparation method and application thereof
CN114262221B (en) * 2021-12-28 2022-09-16 北京七星飞行电子有限公司 High-temperature stable nickel-zinc ferrite material and preparation method and application thereof

Also Published As

Publication number Publication date
FR2215682A1 (en) 1974-08-23
DE2402935A1 (en) 1974-08-08
FR2215682B1 (en) 1977-07-29
DE2402935B2 (en) 1978-11-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee