IT968211B - Metodo per la formazione di una superficie magnetica di registra zione - Google Patents

Metodo per la formazione di una superficie magnetica di registra zione

Info

Publication number
IT968211B
IT968211B IT27620/72A IT2762072A IT968211B IT 968211 B IT968211 B IT 968211B IT 27620/72 A IT27620/72 A IT 27620/72A IT 2762072 A IT2762072 A IT 2762072A IT 968211 B IT968211 B IT 968211B
Authority
IT
Italy
Prior art keywords
formation
magnetic recording
recording surface
magnetic
recording
Prior art date
Application number
IT27620/72A
Other languages
English (en)
Original Assignee
Ncr 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 Ncr Co filed Critical Ncr Co
Application granted granted Critical
Publication of IT968211B publication Critical patent/IT968211B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Chemically Coating (AREA)
  • Magnetic Record Carriers (AREA)
IT27620/72A 1971-07-29 1972-07-28 Metodo per la formazione di una superficie magnetica di registra zione IT968211B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16710571A 1971-07-29 1971-07-29

Publications (1)

Publication Number Publication Date
IT968211B true IT968211B (it) 1974-03-20

Family

ID=22605954

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27620/72A IT968211B (it) 1971-07-29 1972-07-28 Metodo per la formazione di una superficie magnetica di registra zione

Country Status (5)

Country Link
CA (1) CA964004A (it)
DE (1) DE2236670A1 (it)
FR (1) FR2147240B3 (it)
GB (1) GB1359946A (it)
IT (1) IT968211B (it)

Also Published As

Publication number Publication date
GB1359946A (en) 1974-07-17
CA964004A (en) 1975-03-11
FR2147240B3 (it) 1975-09-05
FR2147240A1 (it) 1973-03-09
DE2236670A1 (de) 1973-02-08

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