GB1169657A - Electroless Deposition of a Ni-Co-P Magnetic Alloy - Google Patents

Electroless Deposition of a Ni-Co-P Magnetic Alloy

Info

Publication number
GB1169657A
GB1169657A GB55468A GB55468A GB1169657A GB 1169657 A GB1169657 A GB 1169657A GB 55468 A GB55468 A GB 55468A GB 55468 A GB55468 A GB 55468A GB 1169657 A GB1169657 A GB 1169657A
Authority
GB
United Kingdom
Prior art keywords
electroless deposition
magnetic alloy
solution
substrate
deposited
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
GB55468A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB55468A priority Critical patent/GB1169657A/en
Publication of GB1169657A publication Critical patent/GB1169657A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
    • 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
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel

Abstract

1,169,657. Electroless deposition of Ni-Co- P alloys. STANDARD TELEPHONES & CABLES Ltd. Jan.4, 1968, No.554/68. Heading C7F. A coating of a Ni-Co-P magnetic material is deposited on a substrate e.g. of Cu by electroless deposition from a solution containing 35g/1 COSO 4 7H 2 O 10g/1 NiSO 4 TH 2 O 35g/1 Na 3 C 6 H 5 O 7 2H 2 O (sodium citrate) 30g/1 NaH 2 PO 2 H 2 O 60g/1 (NH 4 ) 2 SO 4 the pH of the solution being maintained between 8À0 and 8À5 at the operating temperature 85‹-90‹C. The pH is controlled by the addition of NaOH and the alloy deposited contains 80-30% Ni the remainder being Co and P. The Cu substrate is first activated by dipping in a 1% solution of palladium chloride.
GB55468A 1968-01-04 1968-01-04 Electroless Deposition of a Ni-Co-P Magnetic Alloy Expired GB1169657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB55468A GB1169657A (en) 1968-01-04 1968-01-04 Electroless Deposition of a Ni-Co-P Magnetic Alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB55468A GB1169657A (en) 1968-01-04 1968-01-04 Electroless Deposition of a Ni-Co-P Magnetic Alloy

Publications (1)

Publication Number Publication Date
GB1169657A true GB1169657A (en) 1969-11-05

Family

ID=9706430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55468A Expired GB1169657A (en) 1968-01-04 1968-01-04 Electroless Deposition of a Ni-Co-P Magnetic Alloy

Country Status (1)

Country Link
GB (1) GB1169657A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7622205B2 (en) 2004-04-16 2009-11-24 Fuji Electric Device Technology Co. Ltd. Disk substrate for a perpendicular magnetic recording medium and a perpendicular magnetic recording medium using the substrate
US8039045B2 (en) 2004-07-27 2011-10-18 Fuji Electric Co., Ltd. Method of manufacturing a disk substrate for a magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7622205B2 (en) 2004-04-16 2009-11-24 Fuji Electric Device Technology Co. Ltd. Disk substrate for a perpendicular magnetic recording medium and a perpendicular magnetic recording medium using the substrate
US8039045B2 (en) 2004-07-27 2011-10-18 Fuji Electric Co., Ltd. Method of manufacturing a disk substrate for a magnetic recording medium

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