ATE508100T1 - Magnetisches material auf oxidbasis, herstellungsverfahren dafür, gesinterter ferritmagnet und herstellungsverfahren dafür - Google Patents

Magnetisches material auf oxidbasis, herstellungsverfahren dafür, gesinterter ferritmagnet und herstellungsverfahren dafür

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Publication number
ATE508100T1
ATE508100T1 AT06728923T AT06728923T ATE508100T1 AT E508100 T1 ATE508100 T1 AT E508100T1 AT 06728923 T AT06728923 T AT 06728923T AT 06728923 T AT06728923 T AT 06728923T AT E508100 T1 ATE508100 T1 AT E508100T1
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AT
Austria
Prior art keywords
production process
oxide
ferrite magnet
magnetic material
sintered ferrite
Prior art date
Application number
AT06728923T
Other languages
English (en)
Inventor
Takashi Takami
Hiroshi Iwasaki
Naoki Mochi
Original Assignee
Hitachi Metals Ltd
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Publication date
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Application granted granted Critical
Publication of ATE508100T1 publication Critical patent/ATE508100T1/de

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    • 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
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    • 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
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    • 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
    • C04B35/2633—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 barium, strontium or calcium
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    • 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
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/785—Submicron sized grains, i.e. from 0,1 to 1 micron
    • 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
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
    • 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
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/788—Aspect ratio of the grains
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Compounds Of Iron (AREA)
  • Soft Magnetic Materials (AREA)
AT06728923T 2005-11-25 2006-03-10 Magnetisches material auf oxidbasis, herstellungsverfahren dafür, gesinterter ferritmagnet und herstellungsverfahren dafür ATE508100T1 (de)

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PCT/JP2006/304805 WO2007060757A1 (ja) 2005-11-25 2006-03-10 酸化物磁性材料及びその製造方法、並びにフェライト焼結磁石及びその製造方法

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Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7919007B2 (en) * 2005-12-19 2011-04-05 Tdk Corporation Ferrite magnetic material
TWI433433B (zh) * 2006-03-10 2014-04-01 Hitachi Metals Ltd 黏結磁鐵及磁力輥
EP2043112B1 (de) 2007-03-01 2015-04-08 TDK Corporation Gesinterter ferritmagnet
JP5358998B2 (ja) * 2007-03-28 2013-12-04 日立金属株式会社 フェライト焼結磁石の製造方法
JP5309466B2 (ja) * 2007-04-17 2013-10-09 日立金属株式会社 磁気記録媒体用フェライト粒子
WO2008146712A1 (ja) * 2007-05-25 2008-12-04 Hitachi Metals, Ltd. フェライト焼結磁石及びその製造方法、並びに仮焼体及びその製造方法
JP5408521B2 (ja) * 2007-11-14 2014-02-05 日立金属株式会社 焼結磁石の製造方法
JP5521287B2 (ja) * 2008-06-18 2014-06-11 日立金属株式会社 磁気記録媒体用フェライト粒子
KR101649242B1 (ko) 2009-06-30 2016-08-18 히타치 긴조쿠 가부시키가이샤 페라이트 소결 자석의 제조 방법 및 페라이트 소결 자석
EP3150567B1 (de) 2009-07-08 2025-11-19 TDK Corporation Ferritmagnetisches material
JP5521622B2 (ja) * 2010-02-19 2014-06-18 日立金属株式会社 酸化物磁性材料、フェライト焼結磁石及びフェライト焼結磁石の製造方法
WO2011111756A1 (ja) 2010-03-10 2011-09-15 日立金属株式会社 フェライト焼結磁石及びその製造方法
JP5120467B2 (ja) 2010-03-17 2013-01-16 Ｔｄｋ株式会社 フェライト磁性材料、フェライト磁石、フェライト焼結磁石
JP5804370B2 (ja) * 2010-09-14 2015-11-04 日立金属株式会社 酸化物磁性材料の製造方法
WO2012090935A1 (ja) 2010-12-28 2012-07-05 日立金属株式会社 フェライト焼結磁石及びその製造方法
CN104508769B (zh) 2012-07-31 2017-03-29 日立金属株式会社 铁氧体烧结磁体的制造方法及铁氧体烧结磁体
KR101836964B1 (ko) 2012-08-31 2018-03-09 히타치 긴조쿠 가부시키가이샤 페라이트 하소체, 페라이트 소결 자석의 제조 방법 및 페라이트 소결 자석
KR101836965B1 (ko) 2012-09-28 2018-03-09 히타치 긴조쿠 가부시키가이샤 페라이트 소결 자석 및 그 제조 방법
CN104003707B (zh) * 2014-02-27 2015-05-27 横店集团东磁股份有限公司 一种钡永磁铁氧体材料的制备方法
CN106653264B (zh) 2016-11-28 2019-05-10 宁波科星材料科技有限公司 一种钐钴基复合磁性材料制备方法及钐钴基复合磁性材料
CN110114844A (zh) * 2016-12-22 2019-08-09 Tdk株式会社 铁氧体烧结磁铁、铁氧体颗粒、粘结磁铁、电动机和发电机
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JP6414372B1 (ja) * 2017-05-24 2018-10-31 日立金属株式会社 フェライト焼結磁石
US11450458B2 (en) 2018-02-26 2022-09-20 Tdk Corporation Ferrite sintered magnet, motor and generator
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US12243668B2 (en) * 2019-03-29 2025-03-04 Tdk Corporation Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine
WO2021010571A1 (ko) * 2019-07-15 2021-01-21 한양대학교 에리카산학협력단 육각판상 형태의 페라이트 구조체 및 그 제조방법
KR102234488B1 (ko) * 2019-07-15 2021-03-31 한양대학교 에리카산학협력단 육각판상 형태의 페라이트 구조체 및 그 제조방법
JP7338395B2 (ja) 2019-10-18 2023-09-05 Tdk株式会社 フェライト焼結磁石及びこれを備える回転電気機械
CN111056832A (zh) * 2019-12-13 2020-04-24 湖南航天磁电有限责任公司 一种铁氧体永磁材料及其制备方法
CN111153691B (zh) * 2019-12-27 2022-05-20 湖南航天磁电有限责任公司 一种钡永磁铁氧体及其制备方法
JP6927404B1 (ja) 2020-03-24 2021-08-25 日立金属株式会社 フェライト仮焼体、フェライト焼結磁石及びその製造方法
CN117727518A (zh) 2020-03-24 2024-03-19 株式会社博迈立铖 煅烧铁氧体和烧结铁氧体磁体及其制备方法
WO2022038531A1 (en) * 2020-08-19 2022-02-24 Mahindra Cie Automotive Ltd. A permanent magnetic material and a method for its preparation
CN112624750A (zh) * 2021-01-06 2021-04-09 横店集团东磁股份有限公司 一种z型六角铁氧体材料的制备方法
CN113072368B (zh) * 2021-03-15 2022-05-13 杭州电子科技大学 一种高性能m型铁氧体的气氛烧结方法
JP7716352B2 (ja) * 2021-03-24 2025-07-31 Tdk株式会社 フェライト焼結磁石、フェライト粒子、ボンド磁石、及び、回転電気機械
CN119462121B (zh) * 2024-11-19 2026-03-06 横店集团东磁股份有限公司 一种注射铁氧体磁粉及制备方法，注射铁氧体材料及应用
CN121054380B (zh) * 2025-11-03 2026-03-10 浙江凯文磁钢有限公司 一种各向异性永磁铁氧体磁体的制造方法及磁体

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU32262A1 (de) 1952-07-07
JP3181559B2 (ja) 1997-09-19 2001-07-03 ティーディーケイ株式会社 酸化物磁性材料、フェライト粒子、ボンディット磁石、焼結磁石、これらの製造方法および磁気記録媒体
JPH1197225A (ja) 1997-09-19 1999-04-09 Tdk Corp 異方性焼結磁石、ボンディッド磁石および磁気記録媒体
JP2000268344A (ja) 1999-03-12 2000-09-29 Fuji Photo Film Co Ltd 磁気記録媒体
JP3835729B2 (ja) * 1999-06-21 2006-10-18 株式会社Ｎｅｏｍａｘ フェライト焼結磁石及びその製造方法
JP2001068320A (ja) 1999-06-21 2001-03-16 Hitachi Metals Ltd フェライト磁石
JP2001015316A (ja) 1999-07-01 2001-01-19 Hitachi Metals Ltd 永久磁石部材、マグネットロール及び画像形成方法
FR2831317B1 (fr) 2001-10-19 2004-10-15 Ugimag Sa Aimants de type ferrite economiques et a proprietes ameliorees
JP2003272941A (ja) 2002-03-15 2003-09-26 Hitachi Metals Ltd フェライト焼結磁石の製造方法
JP2005032745A (ja) 2003-07-07 2005-02-03 Hitachi Metals Ltd 焼結フェライト磁石およびその製造方法
US7906036B2 (en) * 2003-09-12 2011-03-15 Neomax Co., Ltd. Ferrite sintered magnet
US7919007B2 (en) * 2005-12-19 2011-04-05 Tdk Corporation Ferrite magnetic material

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JP4078566B2 (ja) 2008-04-23
EP1953123A4 (de) 2009-09-02
BRPI0618960B1 (pt) 2022-04-05
DE602006021780D1 (de) 2011-06-16
US8021567B2 (en) 2011-09-20
EP1953123A1 (de) 2008-08-06
WO2007060757A1 (ja) 2007-05-31
US20110024672A1 (en) 2011-02-03
TW200721203A (en) 2007-06-01
US7837893B2 (en) 2010-11-23
US20090022992A1 (en) 2009-01-22
KR101228689B1 (ko) 2013-02-01
BRPI0618960A2 (pt) 2011-09-13
CN101316803B (zh) 2013-01-09
JPWO2007060757A1 (ja) 2009-05-07
KR20080072069A (ko) 2008-08-05
EP1953123B1 (de) 2011-05-04
TWI434302B (zh) 2014-04-11
CN101316803A (zh) 2008-12-03

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