DE68905251D1 - Verfahren zur herstellung eines magnetischen strontiumhexaferrit-puders. - Google Patents

Verfahren zur herstellung eines magnetischen strontiumhexaferrit-puders.

Info

Publication number
DE68905251D1
DE68905251D1 DE8989113147T DE68905251T DE68905251D1 DE 68905251 D1 DE68905251 D1 DE 68905251D1 DE 8989113147 T DE8989113147 T DE 8989113147T DE 68905251 T DE68905251 T DE 68905251T DE 68905251 D1 DE68905251 D1 DE 68905251D1
Authority
DE
Germany
Prior art keywords
producing
strontium hexaferrite
hexaferrite powder
magnetic strontium
magnetic
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
DE8989113147T
Other languages
English (en)
Other versions
DE68905251T2 (de
Inventor
Jean-Claude Moisand
Joseph Cumer
Paul Poix
Jean-Claude Bernier
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.)
Cga Hbs
Original Assignee
Cga Hbs
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 Cga Hbs filed Critical Cga Hbs
Publication of DE68905251D1 publication Critical patent/DE68905251D1/de
Application granted granted Critical
Publication of DE68905251T2 publication Critical patent/DE68905251T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G11B5/70626—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 containing non-metallic substances
    • G11B5/70642—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 containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
DE8989113147T 1988-07-22 1989-07-18 Verfahren zur herstellung eines magnetischen strontiumhexaferrit-puders. Expired - Fee Related DE68905251T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8809968A FR2634582B1 (fr) 1988-07-22 1988-07-22 Procede de fabrication d'une poudre magnetique d'hexaferrite de strontium

Publications (2)

Publication Number Publication Date
DE68905251D1 true DE68905251D1 (de) 1993-04-15
DE68905251T2 DE68905251T2 (de) 1993-06-17

Family

ID=9368704

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989113147T Expired - Fee Related DE68905251T2 (de) 1988-07-22 1989-07-18 Verfahren zur herstellung eines magnetischen strontiumhexaferrit-puders.

Country Status (8)

Country Link
EP (1) EP0351775B1 (de)
JP (1) JPH0274008A (de)
KR (1) KR970011186B1 (de)
AR (1) AR242682A1 (de)
AT (1) ATE86782T1 (de)
DE (1) DE68905251T2 (de)
ES (1) ES2045285T3 (de)
FR (1) FR2634582B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026503B4 (de) 2007-06-05 2009-08-27 Bourns, Inc., Riverside Verfahren zur Herstellung einer Magnetschicht auf einem Substrat und druckbarer magnetisierbarer Lack
RU2614171C1 (ru) * 2015-12-29 2017-03-23 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Способ измельчения смеси карбоната стронция и оксида железа в производстве гексаферритов стронция

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810973A (en) * 1973-01-12 1974-05-14 Gen Electric Method of preparing ferrites
DE3417793A1 (de) * 1984-05-14 1985-11-14 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung feinteiliger, nadelfoermiger und hochkoerzitiver hexagonaler ferrite sowie ihre verwendung zur herstellung magnetischer aufzeichnungstraeger und plastoferrite

Also Published As

Publication number Publication date
AR242682A1 (es) 1993-04-30
EP0351775A1 (de) 1990-01-24
ES2045285T3 (es) 1994-01-16
JPH0274008A (ja) 1990-03-14
DE68905251T2 (de) 1993-06-17
EP0351775B1 (de) 1993-03-10
KR900002357A (ko) 1990-02-28
ATE86782T1 (de) 1993-03-15
FR2634582A1 (fr) 1990-01-26
FR2634582B1 (fr) 1990-09-07
KR970011186B1 (ko) 1997-07-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee