GB486778A - Improvements in finely divided magnetic materials - Google Patents

Improvements in finely divided magnetic materials

Info

Publication number
GB486778A
GB486778A GB557537A GB557537A GB486778A GB 486778 A GB486778 A GB 486778A GB 557537 A GB557537 A GB 557537A GB 557537 A GB557537 A GB 557537A GB 486778 A GB486778 A GB 486778A
Authority
GB
United Kingdom
Prior art keywords
per cent
finely divided
iron
magnetic materials
divided 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
Application number
GB557537A
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.)
CLIVE GORDON SMITH
General Electric Co PLC
Original Assignee
CLIVE GORDON SMITH
General Electric Co PLC
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 CLIVE GORDON SMITH, General Electric Co PLC filed Critical CLIVE GORDON SMITH
Priority to GB557537A priority Critical patent/GB486778A/en
Publication of GB486778A publication Critical patent/GB486778A/en
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
    • H01F1/12—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 soft-magnetic materials
    • H01F1/14—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 soft-magnetic materials metals or alloys
    • H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

Magnetic dust for inductance coil cores may comprise an alloy of 80 per cent of nickel and 20 per cent of iron, or 95 per cent of iron and 5 per cent of silicon, the iron being obtained by reduction of the oxide in hydrogen. The alloy may be formed by heating a mixture of its constituents or a mixture of oxides or other reducible compounds of the constituents, this heating also forming one step in a process for obtaining dust of a given grain size. Specifications 423,823 and 456,739 are referred to.
GB557537A 1937-02-24 1937-02-24 Improvements in finely divided magnetic materials Expired GB486778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB557537A GB486778A (en) 1937-02-24 1937-02-24 Improvements in finely divided magnetic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB557537A GB486778A (en) 1937-02-24 1937-02-24 Improvements in finely divided magnetic materials

Publications (1)

Publication Number Publication Date
GB486778A true GB486778A (en) 1938-06-10

Family

ID=9798693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB557537A Expired GB486778A (en) 1937-02-24 1937-02-24 Improvements in finely divided magnetic materials

Country Status (1)

Country Link
GB (1) GB486778A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2969281A (en) * 1958-01-17 1961-01-24 American Metal Climax Inc Process for making spherical metal particles
US6290746B1 (en) * 1998-11-26 2001-09-18 Sumitomo Special Metals Co., Ltd. Method of producing metal ball and semiconductor package

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2969281A (en) * 1958-01-17 1961-01-24 American Metal Climax Inc Process for making spherical metal particles
US6290746B1 (en) * 1998-11-26 2001-09-18 Sumitomo Special Metals Co., Ltd. Method of producing metal ball and semiconductor package

Similar Documents

Publication Publication Date Title
GB486778A (en) Improvements in finely divided magnetic materials
GB473238A (en) Improvements in magnetic materials suitable for "dust-cores"
GB481249A (en) Improvements in or relating to magnetic cores of inductive devices
GB474711A (en) Self-inductance coil
GB732029A (en) Improvements in and relating to the production of high density metal bodies such as electrical contact bodies
GB542145A (en) Improvements in methods of producing nickel-iron powder
GB215335A (en)
GB401352A (en) Improvements in magnetic cores of powdered material
GB527874A (en) Improvements in or relating to magnetic dust cores
GB495058A (en) Means for controlling the gain of wave amplifying devices
GB469356A (en) Improvements in or relating to permanent magnets prepared by compressing finely divided magnetic material
GB489261A (en) Improvements relating to the magnetic recording and reproducing of sound
SU198672A1 (en) Iron-based hard magnetic alloy
GB1003533A (en)
GB372837A (en) Manufacture of magnetic dust cores
GB484073A (en) Improvements in magnetic materials, more particularly for powder cores
GB208147A (en) Improved method of manufacturing magnet cores
GB495668A (en) Improvements in or relating to magnetic alloys containing tungsten
GB609708A (en) Improvements in and relating to ultra high frequency inductors
GB225973A (en) Improvements in inductance devices
GB733854A (en) Improvements in or relating to the manufacture of iron powder
GB477678A (en) Improvements relating to high frequency inductance coils
GB327865A (en) Improvements in the manufacture of nickel iron alloys
GB516080A (en) Improvements in or relating to high frequency coils of variable inductance
GB439964A (en) Improvements in and relating to choke coils for electric circuits