WO2004102595A3 - Materiau ferrite pour aimant permanent et procede de fabrication - Google Patents

Materiau ferrite pour aimant permanent et procede de fabrication Download PDF

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Publication number
WO2004102595A3
WO2004102595A3 PCT/EP2004/050825 EP2004050825W WO2004102595A3 WO 2004102595 A3 WO2004102595 A3 WO 2004102595A3 EP 2004050825 W EP2004050825 W EP 2004050825W WO 2004102595 A3 WO2004102595 A3 WO 2004102595A3
Authority
WO
WIPO (PCT)
Prior art keywords
ferrite material
permanent magnet
production
production therof
therof
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.)
Ceased
Application number
PCT/EP2004/050825
Other languages
English (en)
Other versions
WO2004102595A2 (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
Publication of WO2004102595A2 publication Critical patent/WO2004102595A2/fr
Publication of WO2004102595A3 publication Critical patent/WO2004102595A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Abstract

L'invention a pour objet un matériau ferrite de structure hexaferrite caractérisé en ce qu'il répond à la formule chimique suivante A1-xByCZDtCuvFel2-WOl9 avec 2(x-z-v) + 3(w-y) - 4t = 0, A = Ba, Sr, Ca ou Pb, B = AI, Cr, Ga, Bi, B, La, Y ou une Terre Rare, C = Co, Zn, Cd, Ni, Mg ou Mn, D = Ti, Sn, Zr, Si, Ge Où0<x <0,30;0<y<0,30;0<z<0,30;0<t<0,30; 0,05 < v < 0,30 ; 0 < w < 0,90 Ce matériau ferrite est particulièrement bien adapté pour être utilisé comme aimant permanent bas coût. L'invention a aussi pour objet un procédé de fabrication d'un tel matériau. Application : Circulateurs hyperfréquence.
PCT/EP2004/050825 2003-05-16 2004-05-17 Materiau ferrite pour aimant permanent et procede de fabrication Ceased WO2004102595A2 (fr)

Applications Claiming Priority (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
FR0305911 2003-05-16

Publications (2)

Publication Number Publication Date
WO2004102595A2 WO2004102595A2 (fr) 2004-11-25
WO2004102595A3 true WO2004102595A3 (fr) 2005-01-27

Family

ID=33306417

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/050825 Ceased WO2004102595A2 (fr) 2003-05-16 2004-05-17 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
CN115084870B (zh) * 2022-08-02 2025-01-07 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
CN116903358B (zh) * 2023-08-10 2024-12-03 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0377821A1 (fr) * 1988-12-14 1990-07-18 Bayer Ag Procédé de préparation de particules fines magnétiques d'hexaferrites par séchage par pulvérisation de sels de baryum et d'oxydes de fer ainsi que leur utilisation
EP0758786A1 (fr) * 1995-08-11 1997-02-19 TDK Corporation Poudre magnétique, aimant fritté, aimant à liant, et support d'enregistrement magnétique
EP1011114A1 (fr) * 1998-06-25 2000-06-21 TDK Corporation Aimant hexagonal en ferrite

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0377821A1 (fr) * 1988-12-14 1990-07-18 Bayer Ag Procédé de préparation de particules fines magnétiques d'hexaferrites par séchage par pulvérisation de sels de baryum et d'oxydes de fer ainsi que leur utilisation
EP0758786A1 (fr) * 1995-08-11 1997-02-19 TDK Corporation Poudre magnétique, aimant fritté, aimant à liant, et support d'enregistrement magnétique
EP1011114A1 (fr) * 1998-06-25 2000-06-21 TDK Corporation Aimant hexagonal en ferrite

Also Published As

Publication number Publication date
WO2004102595A2 (fr) 2004-11-25
FR2854981A1 (fr) 2004-11-19
FR2854981B1 (fr) 2014-05-23

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