FR3033271B1 - Particules de materiau ferromagnetique enrobees d'une couche de ferrite de type nizn - Google Patents

Particules de materiau ferromagnetique enrobees d'une couche de ferrite de type nizn Download PDF

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Publication number
FR3033271B1
FR3033271B1 FR1551816A FR1551816A FR3033271B1 FR 3033271 B1 FR3033271 B1 FR 3033271B1 FR 1551816 A FR1551816 A FR 1551816A FR 1551816 A FR1551816 A FR 1551816A FR 3033271 B1 FR3033271 B1 FR 3033271B1
Authority
FR
France
Prior art keywords
ferromagnetic material
particles
nizn
material particles
ferrite layer
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
FR1551816A
Other languages
English (en)
Other versions
FR3033271A1 (fr
Inventor
Rudy Guicheteau
Vincent Bonnefoy
Jean Francois Silvain
Jean-Louis BOBET
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.)
Centre National de la Recherche Scientifique CNRS
Sintertech SAS
Original Assignee
Centre National de la Recherche Scientifique CNRS
Sintertech SAS
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 Centre National de la Recherche Scientifique CNRS, Sintertech SAS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR1551816A priority Critical patent/FR3033271B1/fr
Priority to PCT/FR2016/050497 priority patent/WO2016139431A1/fr
Priority to EP16713538.3A priority patent/EP3265257A1/fr
Publication of FR3033271A1 publication Critical patent/FR3033271A1/fr
Application granted granted Critical
Publication of FR3033271B1 publication Critical patent/FR3033271B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14Treatment of metallic powder
    • B22F1/145Chemical treatment, e.g. passivation or decarburisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/16Metallic particles coated with a non-metal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/33Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C2202/00Physical properties
    • C22C2202/02Magnetic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

La présente invention concerne un procédé d'enrobage de particules de matériau ferromagnétique par une couche de ferrite de type NiZn. Ce procédé comprend : - la fourniture de particules de matériau ferromagnétique ; - l'activation de la surface des particules de matériau ferromagnétique ; - l'enrobage des particules de matériau ferromagnétique avec des précurseurs de ferrite ; et - la récupération des particules de matériau ferromagnétique ainsi enrobées. Le procédé peut comprend en outre la formation d'une couche intermédiaire de silice à la surface des particules avant l'enrobage. La présente invention concerne également des particules pouvant être obtenues par ce procédé, un procédé de fabrication d'un article fritté à partir de ces particules et l'article fritté en question.
FR1551816A 2015-03-04 2015-03-04 Particules de materiau ferromagnetique enrobees d'une couche de ferrite de type nizn Expired - Fee Related FR3033271B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1551816A FR3033271B1 (fr) 2015-03-04 2015-03-04 Particules de materiau ferromagnetique enrobees d'une couche de ferrite de type nizn
PCT/FR2016/050497 WO2016139431A1 (fr) 2015-03-04 2016-03-03 PARTICULES DE MATÉRIAU FERROMAGNÉTIQUE ENROBÉES D'UNE COUCHE DE FERRITE DE TYPE NiZn
EP16713538.3A EP3265257A1 (fr) 2015-03-04 2016-03-03 PARTICULES DE MATÉRIAU FERROMAGNÉTIQUE ENROBÉES D'UNE COUCHE DE FERRITE DE TYPE NiZn

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1551816 2015-03-04
FR1551816A FR3033271B1 (fr) 2015-03-04 2015-03-04 Particules de materiau ferromagnetique enrobees d'une couche de ferrite de type nizn

Publications (2)

Publication Number Publication Date
FR3033271A1 FR3033271A1 (fr) 2016-09-09
FR3033271B1 true FR3033271B1 (fr) 2019-11-29

Family

ID=54199735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1551816A Expired - Fee Related FR3033271B1 (fr) 2015-03-04 2015-03-04 Particules de materiau ferromagnetique enrobees d'une couche de ferrite de type nizn

Country Status (3)

Country Link
EP (1) EP3265257A1 (fr)
FR (1) FR3033271B1 (fr)
WO (1) WO2016139431A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003015109A1 (fr) * 2001-08-09 2003-02-20 The Circle For The Promotion Of Science And Engineering Substance magnetique composite formee par compression de particules metalliques revetues de ferrite et procede de preparation associe
JP2004189513A (ja) * 2002-12-09 2004-07-08 Fdk Corp 機能性フェライト粒子の製造方法
JP2009135413A (ja) * 2007-11-07 2009-06-18 Nissan Motor Co Ltd 焼結軟磁性材料及びその製造方法
KR101594585B1 (ko) 2008-03-20 2016-02-17 회가내스 아베 (피유비엘) 강자성 파우더 조성물 및 그 생산 방법
JP6075605B2 (ja) * 2012-09-14 2017-02-08 アイシン精機株式会社 軟磁性体及びその製造方法

Also Published As

Publication number Publication date
WO2016139431A1 (fr) 2016-09-09
EP3265257A1 (fr) 2018-01-10
FR3033271A1 (fr) 2016-09-09

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