FR2227920B1 - - Google Patents

Info

Publication number
FR2227920B1
FR2227920B1 FR7415052A FR7415052A FR2227920B1 FR 2227920 B1 FR2227920 B1 FR 2227920B1 FR 7415052 A FR7415052 A FR 7415052A FR 7415052 A FR7415052 A FR 7415052A FR 2227920 B1 FR2227920 B1 FR 2227920B1
Authority
FR
France
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
Application number
FR7415052A
Other versions
FR2227920A1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2227920A1 publication Critical patent/FR2227920A1/fr
Application granted granted Critical
Publication of FR2227920B1 publication Critical patent/FR2227920B1/fr
Expired 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
    • H01F1/04—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
    • H01F1/06—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 in the form of particles, e.g. powder
    • H01F1/065—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 in the form of particles, e.g. powder obtained by a reduction
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Paints Or Removers (AREA)
FR7415052A 1973-05-03 1974-04-30 Expired FR2227920B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7306143A NL167729C (nl) 1973-05-03 1973-05-03 Werkwijze voor het bereiden van een hoofdzakelijk uit ijzer bestaand metaalpoeder.

Publications (2)

Publication Number Publication Date
FR2227920A1 FR2227920A1 (fr) 1974-11-29
FR2227920B1 true FR2227920B1 (fr) 1977-07-15

Family

ID=19818779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415052A Expired FR2227920B1 (fr) 1973-05-03 1974-04-30

Country Status (7)

Country Link
US (1) US3910785A (fr)
JP (1) JPS5330114B2 (fr)
BE (1) BE814478A (fr)
DE (1) DE2418812B2 (fr)
FR (1) FR2227920B1 (fr)
GB (1) GB1452638A (fr)
NL (1) NL167729C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2434058C2 (de) * 1974-07-16 1985-12-19 Basf Ag, 6700 Ludwigshafen Nadelförmige, vorwiegend aus Eisen bestehende ferromagnetische Metallteilchen und Verfahren zu ihrer Herstellung
US4054443A (en) * 1975-12-22 1977-10-18 Midrex Corporation Method of preparing iron powder
JPS52122213A (en) * 1976-04-05 1977-10-14 Hitachi Ltd Production of ferromagnetic metal powder
JPS5376957A (en) * 1976-12-20 1978-07-07 Hitachi Maxell Magnetic metal iron powder and said manufacturing process
DE2909995C2 (de) * 1978-03-16 1984-06-28 Kanto Denka Kogyo Co., Ltd., Tokyo Verfahren zur Herstellung eines Magnetpulvers
DE2909480A1 (de) * 1979-03-10 1980-09-11 Bayer Ag Ferromagnetisches, im wesentlichen aus eisen bestehendes metallpigment und verfahren zu dessen herstellung
US4826671A (en) * 1986-03-14 1989-05-02 Basf Aktiengesellschaft Preparation of acicular α-Fe2 O3
EP2959989B1 (fr) * 2014-06-23 2017-08-02 Belenos Clean Power Holding AG Nanocristaux Sb ou nanocristaux d'alliage de Sb pour anodes de batterie Li-on et Na-ion à charge/décharge rapide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160106C (nl) * 1968-01-31 1979-09-17 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel poeder, voor magnetische registratie.
NL163355C (nl) * 1969-04-08 1980-08-15 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel metaalpoeder, voor magnetische registratie.
BE792840A (fr) * 1971-12-30 1973-03-30 Ampex Particules de fer magnétique aciculaires stables
DE2212933A1 (de) * 1972-03-17 1973-09-20 Philips Nv Verfahren zur herstellung eines im wesentlichen aus eisen bestehenden metallpulvers

Also Published As

Publication number Publication date
NL7306143A (fr) 1974-11-05
NL167729C (nl) 1982-01-18
DE2418812A1 (de) 1974-11-21
DE2418812B2 (de) 1977-05-05
US3910785A (en) 1975-10-07
JPS5014568A (fr) 1975-02-15
GB1452638A (en) 1976-10-13
FR2227920A1 (fr) 1974-11-29
BE814478A (fr) 1974-11-04
JPS5330114B2 (fr) 1978-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse