GB1136491A - Improved process for the preparation of thin ferromagnetic foils having predetermined anisotropy and thin foils obtained by this process - Google Patents

Improved process for the preparation of thin ferromagnetic foils having predetermined anisotropy and thin foils obtained by this process

Info

Publication number
GB1136491A
GB1136491A GB14409/66A GB1440966A GB1136491A GB 1136491 A GB1136491 A GB 1136491A GB 14409/66 A GB14409/66 A GB 14409/66A GB 1440966 A GB1440966 A GB 1440966A GB 1136491 A GB1136491 A GB 1136491A
Authority
GB
United Kingdom
Prior art keywords
thin
foils
anisotropy
layers
preparation
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
GB14409/66A
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.)
Bull General Electric NV
Original Assignee
Bull General Electric 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 Bull General Electric NV filed Critical Bull General Electric NV
Publication of GB1136491A publication Critical patent/GB1136491A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • 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
    • 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
    • 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
    • H01F10/14—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Thin Magnetic Films (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1,136,491. Magnetic structures. SOC. INDUSTRIELLE BULL - GENERAL ELECTRIC. 31 March, 1966 [2 April, 1965], No. 14409/66. Heading H1H. [Also in Division C7] A thin film of a ferromagnetic alloy deposited on a support comprises at least 2 layers, each of which has a constant composition on either side of a mean value corresponding to zero magnetostriction and minimum anisotropy, so that the net magnetostriction is zero, but the anisotropy is non-minimum. The layers may be deposited electrolytically on a metal support serving as cathode, in the presence of thiourea, as described in Specification 1,136,492. Alternatively, the layers may be formed by evaporation from alloy blocks. The alloy is preferably Ni-Fe, the mean value being 82-83% Ni and 18-17% Fe. Other alloys referred to are Ni-Fe-Co, Ni-Co, and Ni-Fe-Mo. Reference has been directed by the Comptroller to Specification 1,083,673.
GB14409/66A 1965-04-02 1966-03-31 Improved process for the preparation of thin ferromagnetic foils having predetermined anisotropy and thin foils obtained by this process Expired GB1136491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR11757A FR1438565A (en) 1965-04-02 1965-04-02 Process for preparing ferromagnetic thin sections with predetermined anisotropy and thin sections obtained by this process

Publications (1)

Publication Number Publication Date
GB1136491A true GB1136491A (en) 1968-12-11

Family

ID=8575541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14409/66A Expired GB1136491A (en) 1965-04-02 1966-03-31 Improved process for the preparation of thin ferromagnetic foils having predetermined anisotropy and thin foils obtained by this process

Country Status (5)

Country Link
BE (1) BE678662A (en)
DE (1) DE1564555A1 (en)
FR (1) FR1438565A (en)
GB (1) GB1136491A (en)
NL (1) NL6604330A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994694A (en) * 1975-03-03 1976-11-30 Oxy Metal Industries Corporation Composite nickel-iron electroplated article
US4108739A (en) * 1973-09-04 1978-08-22 Fuji Photo Film Co., Ltd. Plating method for memory elements
US4923574A (en) * 1984-11-13 1990-05-08 Uri Cohen Method for making a record member with a metallic antifriction overcoat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108739A (en) * 1973-09-04 1978-08-22 Fuji Photo Film Co., Ltd. Plating method for memory elements
US3994694A (en) * 1975-03-03 1976-11-30 Oxy Metal Industries Corporation Composite nickel-iron electroplated article
US4923574A (en) * 1984-11-13 1990-05-08 Uri Cohen Method for making a record member with a metallic antifriction overcoat

Also Published As

Publication number Publication date
DE1564555A1 (en) 1969-07-17
BE678662A (en) 1966-09-01
NL6604330A (en) 1966-10-03
FR1438565A (en) 1966-05-13

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