EP0260870A3 - Polymerbindemittel-Metallmagnet mit korrosionsbeständigen Partikeln - Google Patents

Polymerbindemittel-Metallmagnet mit korrosionsbeständigen Partikeln Download PDF

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Publication number
EP0260870A3
EP0260870A3 EP87307965A EP87307965A EP0260870A3 EP 0260870 A3 EP0260870 A3 EP 0260870A3 EP 87307965 A EP87307965 A EP 87307965A EP 87307965 A EP87307965 A EP 87307965A EP 0260870 A3 EP0260870 A3 EP 0260870A3
Authority
EP
European Patent Office
Prior art keywords
corrosion resistant
magnet
metal particles
polymeric
polymeric bonded
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.)
Withdrawn
Application number
EP87307965A
Other languages
English (en)
French (fr)
Other versions
EP0260870A2 (de
Inventor
David M. Hopstock
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of EP0260870A2 publication Critical patent/EP0260870A2/de
Publication of EP0260870A3 publication Critical patent/EP0260870A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0572—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes with a protective layer
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP87307965A 1986-09-12 1987-09-09 Polymerbindemittel-Metallmagnet mit korrosionsbeständigen Partikeln Withdrawn EP0260870A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90681986A 1986-09-12 1986-09-12
US906819 1986-09-12

Publications (2)

Publication Number Publication Date
EP0260870A2 EP0260870A2 (de) 1988-03-23
EP0260870A3 true EP0260870A3 (de) 1989-04-19

Family

ID=25423037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87307965A Withdrawn EP0260870A3 (de) 1986-09-12 1987-09-09 Polymerbindemittel-Metallmagnet mit korrosionsbeständigen Partikeln

Country Status (3)

Country Link
EP (1) EP0260870A3 (de)
JP (1) JPS6376801A (de)
KR (1) KR880004508A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173206A (en) * 1987-12-14 1992-12-22 The B. F. Goodrich Company Passivated rare earth magnet or magnetic material compositions
US5278377A (en) * 1991-11-27 1994-01-11 Minnesota Mining And Manufacturing Company Electromagnetic radiation susceptor material employing ferromagnetic amorphous alloy particles
US6468678B1 (en) 1994-11-17 2002-10-22 3M Innovative Properties Company Conformable magnetic articles for use with traffic bearing surfaces methods of making same systems including same and methods of use
MX9707239A (es) * 1995-03-29 1997-11-29 Minnesota Mining & Mfg Compuesto que absorbe energia electromagnetica.
US5764060A (en) * 1996-03-11 1998-06-09 Minnesota Mining And Manufacturing Company Guidance system for a moving person
US6217252B1 (en) 1998-08-11 2001-04-17 3M Innovative Properties Company Wear-resistant transportation surface marking method and materials
JP3882545B2 (ja) * 2000-11-13 2007-02-21 住友金属鉱山株式会社 高耐候性磁石粉及びこれを用いた磁石
US20030123930A1 (en) 2001-12-31 2003-07-03 Jacobs Gregory F. Matrix element magnetic pavement marker and method of making same
DE102015223542A1 (de) * 2015-11-27 2017-06-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Anreicherung eines Elementes an den Korngrenzen eines magnetischen zwei- oder mehrphasigen Systems
CN109982791B (zh) * 2016-11-28 2022-02-22 国立大学法人东北大学 稀土类铁氮系磁性粉末及其制造方法
JP6963251B2 (ja) * 2016-11-28 2021-11-05 国立大学法人東北大学 希土類鉄窒素系磁性粉末
JP6865437B2 (ja) * 2017-08-18 2021-04-28 国立大学法人東北大学 皮膜付磁石合金粉の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932293A (en) * 1972-05-22 1976-01-13 Minnesota Mining And Manufacturing Company Metallic ferromagnetic particles for use in environmentally stable magnetic recording media
EP0043921A1 (de) * 1980-07-15 1982-01-20 BASF Aktiengesellschaft Ferromagnetische, im wesentlichen aus Eisen bestehende Metallteilchen mit einem Oberflächenüberzug, Verfahren zu deren Herstellung sowie ihre Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern
EP0190461A2 (de) * 1984-12-24 1986-08-13 Sumitomo Special Metals Co., Ltd. Verfahren zur Herstellung von Dauermagneten und Dauermagnet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932293A (en) * 1972-05-22 1976-01-13 Minnesota Mining And Manufacturing Company Metallic ferromagnetic particles for use in environmentally stable magnetic recording media
EP0043921A1 (de) * 1980-07-15 1982-01-20 BASF Aktiengesellschaft Ferromagnetische, im wesentlichen aus Eisen bestehende Metallteilchen mit einem Oberflächenüberzug, Verfahren zu deren Herstellung sowie ihre Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern
EP0190461A2 (de) * 1984-12-24 1986-08-13 Sumitomo Special Metals Co., Ltd. Verfahren zur Herstellung von Dauermagneten und Dauermagnet

Also Published As

Publication number Publication date
EP0260870A2 (de) 1988-03-23
JPS6376801A (ja) 1988-04-07
KR880004508A (ko) 1988-06-04

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Inventor name: HOPSTOCK,DAVID M.