FR2202953A1 - Electrodeposition of nickel-iron alloys - for use in transducers, plating soln. contains thiocyanate ions to increase nickel-iron ratio - Google Patents

Electrodeposition of nickel-iron alloys - for use in transducers, plating soln. contains thiocyanate ions to increase nickel-iron ratio

Info

Publication number
FR2202953A1
FR2202953A1 FR7345365A FR7345365A FR2202953A1 FR 2202953 A1 FR2202953 A1 FR 2202953A1 FR 7345365 A FR7345365 A FR 7345365A FR 7345365 A FR7345365 A FR 7345365A FR 2202953 A1 FR2202953 A1 FR 2202953A1
Authority
FR
France
Prior art keywords
nickel
iron
transducers
electrodeposition
ratio
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.)
Granted
Application number
FR7345365A
Other languages
French (fr)
Other versions
FR2202953B3 (en
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2202953A1 publication Critical patent/FR2202953A1/en
Application granted granted Critical
Publication of FR2202953B3 publication Critical patent/FR2202953B3/fr
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

Addn. of sufficient NaCNS or other thiocyanate to the electrolyte for co-deposition of Ni and Fe increases the Ni:Fe ratio in the deposit. Anomalous deposition and variation in the Ni-fe alloy compsn. are thus inhibited without redn. of current and consequent increase in plating time. Paired films of this type on suitably masked metallised substrates can form the yokes of electromagnetic recording transducers.
FR7345365A 1973-01-20 1973-12-11 Electrodeposition of nickel-iron alloys - for use in transducers, plating soln. contains thiocyanate ions to increase nickel-iron ratio Granted FR2202953A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB308273 1973-01-20

Publications (2)

Publication Number Publication Date
FR2202953A1 true FR2202953A1 (en) 1974-05-10
FR2202953B3 FR2202953B3 (en) 1976-10-15

Family

ID=9751633

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345365A Granted FR2202953A1 (en) 1973-01-20 1973-12-11 Electrodeposition of nickel-iron alloys - for use in transducers, plating soln. contains thiocyanate ions to increase nickel-iron ratio

Country Status (2)

Country Link
JP (1) JPS535851B2 (en)
FR (1) FR2202953A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320997A1 (en) * 1975-08-11 1977-03-11 Buckbee Mears Co PROCESS FOR THE ELECTROLYTIC DEPOSIT OF A NICKEL-IRON ALLOY
FR2376229A1 (en) * 1976-12-30 1978-07-28 Ibm ELECTROLYTIC COATING SYSTEM FOR THIN PERMALLOY FILMS
EP0012326A2 (en) * 1978-12-18 1980-06-25 International Business Machines Corporation A method of electroplating nickel-iron alloys
EP4166695A1 (en) * 2015-12-18 2023-04-19 Rolex Sa Method for manufacturing a timepiece component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4279707A (en) 1978-12-18 1981-07-21 International Business Machines Corporation Electroplating of nickel-iron alloys for uniformity of nickel/iron ratio using a low density plating current

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320997A1 (en) * 1975-08-11 1977-03-11 Buckbee Mears Co PROCESS FOR THE ELECTROLYTIC DEPOSIT OF A NICKEL-IRON ALLOY
FR2376229A1 (en) * 1976-12-30 1978-07-28 Ibm ELECTROLYTIC COATING SYSTEM FOR THIN PERMALLOY FILMS
EP0012326A2 (en) * 1978-12-18 1980-06-25 International Business Machines Corporation A method of electroplating nickel-iron alloys
EP0012326A3 (en) * 1978-12-18 1981-01-14 International Business Machines Corporation A method of electroplating nickel-iron alloys
EP4166695A1 (en) * 2015-12-18 2023-04-19 Rolex Sa Method for manufacturing a timepiece component

Also Published As

Publication number Publication date
FR2202953B3 (en) 1976-10-15
JPS535851B2 (en) 1978-03-02
JPS49103845A (en) 1974-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse