DE69526313D1 - Magnetische, spindelförmige Legierungsteilchen mit Kobalt und Eisen als Hauptbestandteilen sowie Verfahren zu deren Herstellung - Google Patents

Magnetische, spindelförmige Legierungsteilchen mit Kobalt und Eisen als Hauptbestandteilen sowie Verfahren zu deren Herstellung

Info

Publication number
DE69526313D1
DE69526313D1 DE69526313T DE69526313T DE69526313D1 DE 69526313 D1 DE69526313 D1 DE 69526313D1 DE 69526313 T DE69526313 T DE 69526313T DE 69526313 T DE69526313 T DE 69526313T DE 69526313 D1 DE69526313 D1 DE 69526313D1
Authority
DE
Germany
Prior art keywords
cobalt
spindle
iron
magnetic
production
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 - Fee Related
Application number
DE69526313T
Other languages
English (en)
Other versions
DE69526313T2 (de
Inventor
Kenji Okinaka
Yasutaka Ota
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.)
Toda Kogyo Corp
Original Assignee
Toda Kogyo 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
Priority claimed from JP33261294A external-priority patent/JP3337046B2/ja
Priority claimed from JP6332611A external-priority patent/JPH08165117A/ja
Application filed by Toda Kogyo Corp filed Critical Toda Kogyo Corp
Publication of DE69526313D1 publication Critical patent/DE69526313D1/de
Application granted granted Critical
Publication of DE69526313T2 publication Critical patent/DE69526313T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide [Fe2O3]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/062—Fibrous particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70621—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Co metal or alloys
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12097—Nonparticulate component encloses particles
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12181—Composite powder [e.g., coated, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Soft Magnetic Materials (AREA)
DE69526313T 1994-12-13 1995-05-02 Magnetische, spindelförmige Legierungsteilchen mit Kobalt und Eisen als Hauptbestandteilen sowie Verfahren zu deren Herstellung Expired - Fee Related DE69526313T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33261294A JP3337046B2 (ja) 1994-12-13 1994-12-13 コバルトと鉄とを主成分とする紡錘状金属磁性粒子粉末及びその製造法
JP6332611A JPH08165117A (ja) 1994-12-13 1994-12-13 コバルトを含有する紡錘状ゲータイト粒子粉末及びその製造法

Publications (2)

Publication Number Publication Date
DE69526313D1 true DE69526313D1 (de) 2002-05-16
DE69526313T2 DE69526313T2 (de) 2002-10-10

Family

ID=26574236

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69526313T Expired - Fee Related DE69526313T2 (de) 1994-12-13 1995-05-02 Magnetische, spindelförmige Legierungsteilchen mit Kobalt und Eisen als Hauptbestandteilen sowie Verfahren zu deren Herstellung

Country Status (3)

Country Link
US (2) US5645652A (de)
EP (2) EP0717397B1 (de)
DE (1) DE69526313T2 (de)

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JP3473877B2 (ja) * 1995-10-13 2003-12-08 富士写真フイルム株式会社 磁気記録媒体
DE19601412C2 (de) * 1996-01-17 1999-07-22 Emtec Magnetics Gmbh Ferromagnetische Pigmente
JP3087825B2 (ja) 1996-04-26 2000-09-11 戸田工業株式会社 紡錘状ゲータイト粒子粉末及びその製造法並びに該ゲータイト粒子粉末を出発原料として得られる鉄を主成分とする紡錘状金属磁性粒子粉末及びその製造法
JP3412676B2 (ja) * 1998-03-02 2003-06-03 戸田工業株式会社 紡錘状ゲータイト粒子粉末及びその製造法
US6133485A (en) * 1998-04-15 2000-10-17 Synphar Laboratories, Inc. Asymmetric synthesis of 2-(2,4-difluorophenyl)-1-heterocycl-1-yl butan-2,3-diols
EP0999185A1 (de) 1998-11-05 2000-05-10 Toda Kogyo Corp. Spindelförmige Goethit-Teilchen, spindelförmige Hämatit- Teilchen und spindelförmige magnetische Eisenoxid-Teilchen die Eisen als Hauptkomponente enthalten
DE69836284T2 (de) * 1998-12-18 2007-02-15 Dowa Mining Co., Ltd. Ferromagnetisches pulver
EP1053975A1 (de) * 1999-05-20 2000-11-22 Toda Kogyo Corporation Spindelförmige Goethit-Teilchen, spindelförmige Hämatit-Teilchen und spindelförmige magnetische Eisenoxid-Teilchen und Verfahren zu ihrer Herstellung
JP2001355001A (ja) * 2000-06-13 2001-12-25 Toda Kogyo Corp 紡錘状ゲータイト粒子粉末、紡錘状ヘマタイト粒子粉末及び鉄を主成分とする紡錘状金属磁性粒子粉末、並びにそれらの製造法
US7489865B2 (en) * 2002-02-01 2009-02-10 Cubic Corporation Integrated optical communication and range finding system and applications thereof
JP4143714B2 (ja) * 2002-03-07 2008-09-03 Ｄｏｗａエレクトロニクス株式会社 強磁性鉄合金粉末の製造法
GB0421712D0 (en) * 2004-09-30 2004-11-03 Cambridge Display Tech Ltd Multi-line addressing methods and apparatus
RU2471010C2 (ru) 2007-05-21 2012-12-27 Орбит Элюминэ Инк. Способ извлечения алюминия и железа из глиноземистых руд
CN103534367A (zh) 2011-03-18 2014-01-22 奥贝特铝业有限公司 从含铝材料中回收稀土元素的方法
EP2705169A4 (de) 2011-05-04 2015-04-15 Orbite Aluminae Inc Verfahren zur wiedergewinnung von seltenerdelementen aus verschiedenen erzen
RU2013157943A (ru) 2011-06-03 2015-07-20 Орбит Элюминэ Инк. Способ получения гематита
US9382600B2 (en) 2011-09-16 2016-07-05 Orbite Technologies Inc. Processes for preparing alumina and various other products
AU2013202318B2 (en) 2012-01-10 2015-11-05 Orbite Aluminae Inc. Processes for treating red mud
CA2903512C (en) 2012-03-29 2017-12-05 Orbite Technologies Inc. Processes for treating fly ashes
US9290828B2 (en) 2012-07-12 2016-03-22 Orbite Technologies Inc. Processes for preparing titanium oxide and various other products
CA2885255C (en) 2012-09-26 2015-12-22 Orbite Aluminae Inc. Processes for preparing alumina and magnesium chloride by hc1 leaching of various materials
JP2016504251A (ja) 2012-11-14 2016-02-12 オーバイト アルミナ インコーポレイテッドＯｒｂｉｔｅ Ａｌｕｍｉｎａｅ Ｉｎｃ． アルミニウムイオンの精製方法
JP6392797B2 (ja) * 2016-02-08 2018-09-19 住友電気工業株式会社 粉末冶金用鉄系粉末、及び粉末冶金用鉄系粉末の製造方法
US11591681B2 (en) 2016-02-08 2023-02-28 Sumitomo Electric Industries, Ltd. Iron-based sintered body
JP6816663B2 (ja) * 2017-06-30 2021-01-20 Tdk株式会社 複合磁性材料および磁心
US11682510B2 (en) * 2019-02-21 2023-06-20 Tdk Corporation Composite magnetic material, magnetic core, and electronic component
JP7251468B2 (ja) * 2019-02-21 2023-04-04 Tdk株式会社 複合磁性材料、磁心および電子部品

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JP2625708B2 (ja) * 1987-03-12 1997-07-02 大日本インキ化学工業株式会社 超高保磁力金属粉末の製造方法
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Also Published As

Publication number Publication date
EP0717397B1 (de) 2002-04-10
US5645652A (en) 1997-07-08
EP0717397A2 (de) 1996-06-19
US5968226A (en) 1999-10-19
DE69526313T2 (de) 2002-10-10
EP0717397A3 (de) 1997-01-29
EP1085506A1 (de) 2001-03-21

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