HK1031781A1 - Hexagonal ferrite magnet - Google Patents

Hexagonal ferrite magnet

Info

Publication number
HK1031781A1
HK1031781A1 HK01102150A HK01102150A HK1031781A1 HK 1031781 A1 HK1031781 A1 HK 1031781A1 HK 01102150 A HK01102150 A HK 01102150A HK 01102150 A HK01102150 A HK 01102150A HK 1031781 A1 HK1031781 A1 HK 1031781A1
Authority
HK
Hong Kong
Prior art keywords
hexagonal ferrite
ferrite magnet
magnet
hexagonal
ferrite
Prior art date
Application number
HK01102150A
Other languages
English (en)
Inventor
Hitoshi Taguchi
Kiyoyuki Masuzawa
Yoshihiko Minachi
Kazumasa Iida
Original Assignee
Tdk Corp
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 Tdk Corp filed Critical Tdk Corp
Publication of HK1031781A1 publication Critical patent/HK1031781A1/xx

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
    • C04B35/2608—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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
HK01102150A 1998-06-25 2001-03-26 Hexagonal ferrite magnet HK1031781A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19495198 1998-06-25
PCT/JP1999/001411 WO1999067795A1 (fr) 1998-06-25 1999-03-19 Aimant hexagonal en ferrite

Publications (1)

Publication Number Publication Date
HK1031781A1 true HK1031781A1 (en) 2001-06-22

Family

ID=16333047

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01102150A HK1031781A1 (en) 1998-06-25 2001-03-26 Hexagonal ferrite magnet

Country Status (5)

Country Link
US (1) US6248253B1 (xx)
EP (1) EP1011114A4 (xx)
CN (2) CN1658340A (xx)
HK (1) HK1031781A1 (xx)
WO (1) WO1999067795A1 (xx)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000075715A (ko) * 1997-12-25 2000-12-26 마쯔노고오지 페라이트 자석 및 그의 제조방법
US6908568B2 (en) * 1999-02-15 2005-06-21 Tdk Corporation Preparation of oxide magnetic material and oxide magnetic material
US6773620B2 (en) * 2002-05-31 2004-08-10 Sanyo Electric Co., Ltd. Oxide magnetic material and production method of the same
FR2854981B1 (fr) * 2003-05-16 2014-05-23 Thales Sa Materiau ferrite pour aimant permanent et procede de fabrication
JP4508143B2 (ja) * 2006-04-06 2010-07-21 株式会社デンソー 燃料ポンプ
CN102093045B (zh) * 2010-12-01 2013-01-02 北京航空航天大学 一种核壳结构钛酸钡-钡铁氧体复合粉体材料及制备方法
JP5929764B2 (ja) * 2010-12-28 2016-06-08 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
JP5645865B2 (ja) * 2012-03-30 2014-12-24 富士フイルム株式会社 六方晶ストロンチウムフェライト磁性粉末およびその製造方法、ならびに磁気記録媒体およびその製造方法
JP5884917B2 (ja) * 2012-10-18 2016-03-15 株式会社村田製作所 酸化物セラミックス、及びセラミック電子部品
JP6596828B2 (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
CN106745298B (zh) * 2016-12-09 2018-11-30 安徽工业大学 一种增强m型锶铁氧体磁性能的方法
CN107311636B (zh) * 2017-07-04 2020-12-22 马鞍山起劲磁塑科技有限公司 一种高性能永磁铁氧体的制备方法
JP7052479B2 (ja) 2018-03-28 2022-04-12 Tdk株式会社 フェライト焼結磁石
JP7338161B2 (ja) * 2019-02-05 2023-09-05 Tdk株式会社 フェライト焼結磁石
JP7529383B2 (ja) * 2019-02-07 2024-08-06 Tdk株式会社 フェライト焼結磁石
JP7251254B2 (ja) * 2019-03-27 2023-04-04 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
CN110156452B (zh) * 2019-05-28 2020-12-22 横店集团东磁股份有限公司 一种m型锶铁氧体及其制备方法
JP2021155317A (ja) * 2020-03-30 2021-10-07 Tdk株式会社 フェライト焼結磁石および回転電気機械
CN111620684A (zh) * 2020-05-22 2020-09-04 浙江凯文磁钢有限公司 一种镧钠永磁铁氧体及其制备方法和应用
WO2022038531A1 (en) * 2020-08-19 2022-02-24 Mahindra Cie Automotive Ltd. A permanent magnetic material and a method for its preparation
CN112239356A (zh) * 2020-10-28 2021-01-19 南京新康达磁业股份有限公司 一种磁性镍锌铁氧体材料及其制备方法
CN112358311B (zh) * 2020-11-27 2022-04-01 滁州恒通磁电科技有限公司 一种高磁性防开裂磁性材料的制备方法
CN116425205A (zh) * 2023-04-03 2023-07-14 山东大学 掺杂稀土铈元素和镍元素的w型钡铁氧体及其制备方法
CN116986891B (zh) * 2023-08-15 2024-03-29 中国计量大学 一种双离子联合取代自偏置六角铁氧体的制备方法
CN117208966B (zh) * 2023-10-13 2024-05-17 扬州大学 一种钛酸钡包覆钴钛掺杂钡铁氧体成核壳结构纳米颗粒的制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913317B1 (xx) 1970-03-02 1974-03-30
JPS6063715A (ja) 1984-07-20 1985-04-12 Toshiba Corp 磁気記録体
JPH0690969B2 (ja) 1984-11-30 1994-11-14 株式会社東芝 磁気記録媒体用磁性粉及びそれを用いた磁気記録媒体
JPH0740380B2 (ja) 1985-11-19 1995-05-01 株式会社リコー 光磁気記録材料
US5945028A (en) * 1992-04-24 1999-08-31 Tdk Corporation Hexagonal system ferrite particles and their production process
US5648039A (en) * 1992-04-24 1997-07-15 Tdk Corporation Process for the production of anisotropic ferrite magnets
US5607615A (en) * 1994-05-13 1997-03-04 Tdk Corporation Hexagonal ba-ferrite sintered magnet, its making method, and polar anisotropy ring magnet
JP3135203B2 (ja) 1995-06-26 2001-02-13 ティーディーケイ株式会社 異方性六方晶Ｂａフェライト焼結磁石の製造方法
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
JPH09260124A (ja) * 1996-03-26 1997-10-03 Sumitomo Special Metals Co Ltd フェライト磁石及びその製造方法
JP2922864B2 (ja) * 1996-11-18 1999-07-26 日立金属株式会社 フェライト磁石およびその製造方法
CN1139944C (zh) * 1996-12-03 2004-02-25 Tdk株式会社 氧化物磁性材料的制备
JP4709338B2 (ja) 1997-09-19 2011-06-22 Ｔｄｋ株式会社 六方晶フェライト磁石粉末と六方晶フェライト焼結磁石の製造方法
CN1239578A (zh) * 1997-09-19 1999-12-22 Tdk株式会社 磁体粉末、烧结磁体,其制造工艺、粘结磁体、马达和磁记录介质
KR20000075715A (ko) * 1997-12-25 2000-12-26 마쯔노고오지 페라이트 자석 및 그의 제조방법
JP4285800B2 (ja) 1998-05-25 2009-06-24 Ｔｄｋ株式会社 酸化物磁性体の製造方法

Also Published As

Publication number Publication date
CN1327458C (zh) 2007-07-18
CN1658340A (zh) 2005-08-24
US6248253B1 (en) 2001-06-19
CN1273675A (zh) 2000-11-15
EP1011114A4 (en) 2001-09-19
EP1011114A1 (en) 2000-06-21
WO1999067795A1 (fr) 1999-12-29

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Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20190318