GB1321511A - Sintered ferrite having a garnet structure for high frequency - Google Patents

Sintered ferrite having a garnet structure for high frequency

Info

Publication number
GB1321511A
GB1321511A GB2479371A GB2479371A GB1321511A GB 1321511 A GB1321511 A GB 1321511A GB 2479371 A GB2479371 A GB 2479371A GB 2479371 A GB2479371 A GB 2479371A GB 1321511 A GB1321511 A GB 1321511A
Authority
GB
United Kingdom
Prior art keywords
high frequency
sintered ferrite
garnet structure
mixture
garnet
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
GB2479371A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1321511A publication Critical patent/GB1321511A/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
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
    • 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
    • C04B35/2675—Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets

Abstract

1321511 Magnetic garnets MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 April 1971 [20 March 1970] 24793/71 Heading H1H A garnet has the formula where 0 < x < 1À5 and 0 < 2x+g < 3À0. It may be made by mixing Y 2 O 3 , CaO, Fe 2 O 3 , T 1 O 2 and V 2 O 5 in the required molar proportions calcining the mixture, grinding the calcined mixture, moulding the resulting particles, and then sintering. Examples describe the preparation of Elements made of these ferrites show a high density (more than 95% theoretical), a low anisotropy constant and a small halfline width.
GB2479371A 1970-03-20 1971-04-19 Sintered ferrite having a garnet structure for high frequency Expired GB1321511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2385270 1970-03-20

Publications (1)

Publication Number Publication Date
GB1321511A true GB1321511A (en) 1973-06-27

Family

ID=12121938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2479371A Expired GB1321511A (en) 1970-03-20 1971-04-19 Sintered ferrite having a garnet structure for high frequency

Country Status (4)

Country Link
CA (1) CA946600A (en)
FR (1) FR2084925A5 (en)
GB (1) GB1321511A (en)
NL (1) NL155393B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000001317A (en) * 1998-04-14 2000-01-07 Tdk Corp Controlling method of intermodulation product of irreversible circuit elements
US6933799B1 (en) 1998-04-14 2005-08-23 Tdk Corporation Method of controlling intermodulation distortion of non-reciprocal device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000001317A (en) * 1998-04-14 2000-01-07 Tdk Corp Controlling method of intermodulation product of irreversible circuit elements
EP1083153A1 (en) * 1998-04-14 2001-03-14 TDK Corporation Method for controlling intermodulation product of non-reciprocal circuit element
US6933799B1 (en) 1998-04-14 2005-08-23 Tdk Corporation Method of controlling intermodulation distortion of non-reciprocal device
EP1083153A4 (en) * 1998-04-14 2006-11-15 Tdk Corp Method for controlling intermodulation product of non-reciprocal circuit element
JP4586215B2 (en) * 1998-04-14 2010-11-24 Ｔｄｋ株式会社 Method for controlling intermodulation product of nonreciprocal circuit element, ferrimagnetic material, and nonreciprocal circuit element using the same

Also Published As

Publication number Publication date
NL7103641A (en) 1971-09-22
DE2113344A1 (en) 1971-10-21
CA946600A (en) 1974-05-07
NL155393B (en) 1977-12-15
DE2113344B2 (en) 1976-08-12
FR2084925A5 (en) 1971-12-17

Similar Documents

Publication Publication Date Title
US2715109A (en) Ferromagnetic ceramic materials with hysteresis loops of rectangular shape
GB780278A (en) Improvements in or relating to methods of manufacturing non-metallic anisotropic permanent magnets
GB1143448A (en) Improvements in or relating to manganese-zinc-ferrites
US3886077A (en) Garnet structure ferrimagnetic material having a saturation magnetisation less than 1000 gauss for microwave applications
GB1321511A (en) Sintered ferrite having a garnet structure for high frequency
GB1281498A (en) Improvements in calcium-vanadium ferrimagnetic garnets
GB1060598A (en) Ferromagnetic cores and processes for the preparation thereof
SE314144B (en)
GB995375A (en) Methods of making ferrite magnets
GB1105788A (en) Improvements relating to ferrimagnetic materials
GB1317250A (en) Ferrite materials
GB1358423A (en) Process and apparatus for the preparation of anisotropic permanent magnets
GB1286468A (en) Improvements in or relating to magnetic materials
GB1462305A (en) High frequency magnetic materials
GB988836A (en) Improvements in or relating to permanent magnet materials
GB1022969A (en) Method of producing a permanent magnet material
GB1086406A (en) Improvements relating to ferrimagnetic material
GB1077427A (en) Method of producing magnetic materials with low dielectric losses for use at microwave frequencies
GB685065A (en) Improvements in magnetic cores
US3644207A (en) Lithium-titanium-zinc ferrites
JPS51133797A (en) Rare earth cobalt system permanent magnet
GB1045260A (en) Garnet compositions
JPS5678428A (en) Magnetic oxide material
GB1024423A (en) Ferromagnetic ferrite material
GB1069879A (en) Improvements in ferrite compositions

Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee