FR2854981B1 - Materiau ferrite pour aimant permanent et procede de fabrication - Google Patents

Materiau ferrite pour aimant permanent et procede de fabrication

Info

Publication number
FR2854981B1
FR2854981B1 FR0305911A FR0305911A FR2854981B1 FR 2854981 B1 FR2854981 B1 FR 2854981B1 FR 0305911 A FR0305911 A FR 0305911A FR 0305911 A FR0305911 A FR 0305911A FR 2854981 B1 FR2854981 B1 FR 2854981B1
Authority
FR
France
Prior art keywords
manufacturing
same
permanent magnet
ferrite material
ferrite
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 - Lifetime
Application number
FR0305911A
Other languages
English (en)
Other versions
FR2854981A1 (fr
Inventor
Richard Lebourgeois
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.)
Thales SA
Original Assignee
Thales 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 Thales SA filed Critical Thales SA
Priority to FR0305911A priority Critical patent/FR2854981B1/fr
Priority to PCT/EP2004/050825 priority patent/WO2004102595A2/fr
Publication of FR2854981A1 publication Critical patent/FR2854981A1/fr
Application granted granted Critical
Publication of FR2854981B1 publication Critical patent/FR2854981B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • 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
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C04B2235/767—Hexagonal symmetry, e.g. beta-Si3N4, beta-Sialon, alpha-SiC or hexa-ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
FR0305911A 2003-05-16 2003-05-16 Materiau ferrite pour aimant permanent et procede de fabrication Expired - Lifetime FR2854981B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0305911A FR2854981B1 (fr) 2003-05-16 2003-05-16 Materiau ferrite pour aimant permanent et procede de fabrication
PCT/EP2004/050825 WO2004102595A2 (fr) 2003-05-16 2004-05-17 Materiau ferrite pour aimant permanent et procede de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0305911A FR2854981B1 (fr) 2003-05-16 2003-05-16 Materiau ferrite pour aimant permanent et procede de fabrication

Publications (2)

Publication Number Publication Date
FR2854981A1 FR2854981A1 (fr) 2004-11-19
FR2854981B1 true FR2854981B1 (fr) 2014-05-23

Family

ID=33306417

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0305911A Expired - Lifetime FR2854981B1 (fr) 2003-05-16 2003-05-16 Materiau ferrite pour aimant permanent et procede de fabrication

Country Status (2)

Country Link
FR (1) FR2854981B1 (fr)
WO (1) WO2004102595A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6596829B2 (ja) * 2014-03-07 2019-10-30 Ｔｄｋ株式会社 フェライト焼結磁石及びそれを備えるモータ
FR3074170A1 (fr) * 2017-11-30 2019-05-31 Thales Materiau ferrite de structure grenat a haute permittivite et a basse temperature de frittage
CN110078492B (zh) * 2019-04-30 2021-09-24 电子科技大学 一种镁铁氧体基低损耗磁介材料及其制备方法
CN111116192B (zh) * 2019-12-25 2021-12-03 深圳顺络电子股份有限公司 一种微波铁氧体材料、制备方法及微波通信器件
WO2022038531A1 (fr) * 2020-08-19 2022-02-24 Mahindra Cie Automotive Ltd. Matériau magnétique permanent et procédé de préparation de celui-ci
CN114804847B (zh) * 2021-01-21 2023-05-23 自贡市江阳磁材有限责任公司 一种永磁铁氧体及其制备方法
CN115084870A (zh) * 2022-08-02 2022-09-20 厦门大学 一种软磁铁氧体吸波材料及其制备方法以及一种复合吸波材料
CN116903358A (zh) * 2023-08-10 2023-10-20 上海阖煦微波技术有限公司 一种微波旋磁铁氧体材料及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842015A1 (de) * 1988-12-14 1990-07-05 Bayer Ag Verfahren zur herstellung feinteiliger magnetischer hexaferrite durch spruehtrocknen von bariumsalzen mit eisenoxiden sowie die verwendung so erhaltener hexaferrite
JP2897871B2 (ja) * 1995-08-11 1999-05-31 ティーディーケイ株式会社 磁石粉末、焼結磁石、ボンディッド磁石および磁気記録媒体
US6248253B1 (en) * 1998-06-25 2001-06-19 Tdk Corporation Hexagonal ferrite magnets

Also Published As

Publication number Publication date
WO2004102595A3 (fr) 2005-01-27
WO2004102595A2 (fr) 2004-11-25
FR2854981A1 (fr) 2004-11-19

Similar Documents

Publication Publication Date Title
FR2852098B1 (fr) Capteur magentique et procede pour fabriquer ce dernier
FR2855640B1 (fr) Document de securite et son procede de fabrication
DE60309120D1 (de) Gesinterter R-Fe-B Magnet
GB0329959D0 (en) Magnetic field sensor
PL1680229T3 (pl) Sposób wzbogacania magnetycznego
EP1408562A4 (fr) Capteur magnetique et son procede de fabrication
HK1087244A1 (en) Ferrite magnetic material and method for producinghexagonal w type ferrite magnetic material
FR2841683B1 (fr) Actionneur magnetique
FR2889891B1 (fr) Traversee de boitier et son procede de fabrication
FR2870626B1 (fr) Dispositif de memoire magnetique et procede pour sa fabrication
FR2859043B1 (fr) Dispositif de memoire magnetique permanente et son procede de fabrication
DE60128370D1 (de) Magnetisches resonanzverfahren
EP1548765A4 (fr) Procede de fabrication d'un aimant lie et procede de fabrication d'un dispositif magnetique comprenant un aimant lie
DE602004020085D1 (de) Radium-target und herstellungsverfahren dafür
FR2862244B1 (fr) Moule carapace renforce et procede pour sa fabrication
FR2864059B1 (fr) Microsoupape integree et procede de fabrication d'une telle microsoupape
FR2854981B1 (fr) Materiau ferrite pour aimant permanent et procede de fabrication
DE60037557D1 (de) Magnetisches Ferritmaterial und Herstellungsverfahren dafür
FR2856714B1 (fr) Treillis de construction et procede pour former un treillis de construction
DE60143830D1 (de) Anisotroper Magnet und zugehöriges Herstellungsverfahren
FR2866933B1 (fr) Procede d'accouplement magnetique et dispositifs le mettant en oeuvre
DE602004024357D1 (de) Magnetpulver und Herstellungsverfahren
DE60202769D1 (de) Magnetischer betätiger mit vermindertem zeitverhalten
NO20025711D0 (no) Magnetisk resonansmetode
FR2824178B1 (fr) Procede de fabrication d'aimants du type ferrite

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16

PLFP Fee payment

Year of fee payment: 17

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19

PLFP Fee payment

Year of fee payment: 20