GB1062681A - Electrodeposition of palladium - Google Patents

Electrodeposition of palladium

Info

Publication number
GB1062681A
GB1062681A GB9957/65A GB995765A GB1062681A GB 1062681 A GB1062681 A GB 1062681A GB 9957/65 A GB9957/65 A GB 9957/65A GB 995765 A GB995765 A GB 995765A GB 1062681 A GB1062681 A GB 1062681A
Authority
GB
United Kingdom
Prior art keywords
palladium
bromide
solution
copper
tetra
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
GB9957/65A
Inventor
Hamish Carmichael Angus
John Michael Stevens
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.)
Inco Ltd
Original Assignee
Inco Ltd
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
Priority to NL130012D priority Critical patent/NL130012C/xx
Application filed by Inco Ltd filed Critical Inco Ltd
Priority to GB9957/65A priority patent/GB1062681A/en
Priority to US530777A priority patent/US3500537A/en
Priority to DEJ30234A priority patent/DE1262722B/en
Priority to ES0323939A priority patent/ES323939A1/en
Priority to FR52579A priority patent/FR1473425A/en
Priority to BE677564D priority patent/BE677564A/xx
Priority to CH335866A priority patent/CH441921A/en
Priority to JP1457666A priority patent/JPS444891B1/ja
Priority to NL6603087A priority patent/NL6603087A/xx
Priority to US586937A priority patent/US3544435A/en
Publication of GB1062681A publication Critical patent/GB1062681A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • 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
    • C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
    • H01H2011/046—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by plating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49224—Contact or terminal manufacturing with coating

Landscapes

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

Abstract

Ductile palladium coatings for electrical contacts are made by electro-deposition using a plating bath containing Pd(NH3)4. Br2 termed tetra-amino palladous bromide. Preferably the plating bath contains 15 to 30 g. of the Pd. compound per litre of solution containing ammonia, and is applied at about 1.5 A. Dm2. A diaphragm cell may be used with ammonium salts as anolyte and at pH 8 to 9. Without a diaphragm pH is 9 to 9.5, and ductility is slightly higher e.g. providing elongations up to 15 per cent, but the electrolyte deteriorates rapidly. The parts may be plated in a barrel. Base metals treated are copper, brass, beryllium-copper, nickel, or nickel silver, preferably after degreasing and etching with H3PO4, and a copper flash coat. Pd coatings up to 5m or higher are referred to. It is stated that the process is limited to the bromide compound, other halides and other salts are unsuitable, and details are quoted.ALSO:Tetra-aminopalladous bromide Pd(NH3)4-Br2 is made by dissolving palladium sponge in excess of conc. HBr with addition of small amounts of bromine to aid solution, and evaporating the solution to dryness, which also reduces any tetravalent palladium to the divalent state. The dry palladous bromide is taken up in the minimum amount of dilute HBr, and ammonia added with warming until the precipitate first formed is re-dissolved. The solution is used for palladium electro-plating (see Division C7).
GB9957/65A 1965-03-09 1965-03-09 Electrodeposition of palladium Expired GB1062681A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NL130012D NL130012C (en) 1965-03-09
GB9957/65A GB1062681A (en) 1965-03-09 1965-03-09 Electrodeposition of palladium
US530777A US3500537A (en) 1965-03-09 1966-03-01 Method of making palladium coated electrical contacts
DEJ30234A DE1262722B (en) 1965-03-09 1966-03-05 Bath and process for the galvanic deposition of palladium coatings on electrical contact parts
FR52579A FR1473425A (en) 1965-03-09 1966-03-08 Advanced process for electroplating palladium
ES0323939A ES323939A1 (en) 1965-03-09 1966-03-08 A procedure to produce an electrical contact that has a ductile paladium coating. (Machine-translation by Google Translate, not legally binding)
BE677564D BE677564A (en) 1965-03-09 1966-03-09
CH335866A CH441921A (en) 1965-03-09 1966-03-09 Process for preparing an electrical contact coated with palladium
JP1457666A JPS444891B1 (en) 1965-03-09 1966-03-09
NL6603087A NL6603087A (en) 1965-03-09 1966-03-09
US586937A US3544435A (en) 1965-03-09 1966-10-17 Electrodeposition of palladium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9957/65A GB1062681A (en) 1965-03-09 1965-03-09 Electrodeposition of palladium
GB4445065 1965-10-20

Publications (1)

Publication Number Publication Date
GB1062681A true GB1062681A (en) 1967-03-22

Family

ID=26243282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9957/65A Expired GB1062681A (en) 1965-03-09 1965-03-09 Electrodeposition of palladium

Country Status (9)

Country Link
US (2) US3500537A (en)
JP (1) JPS444891B1 (en)
BE (1) BE677564A (en)
CH (1) CH441921A (en)
DE (1) DE1262722B (en)
ES (1) ES323939A1 (en)
FR (1) FR1473425A (en)
GB (1) GB1062681A (en)
NL (2) NL6603087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022129916A1 (en) * 2020-12-18 2022-06-23 Johnson Matthey Public Limited Company Electroplating solutions

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH572989A5 (en) * 1973-04-27 1976-02-27 Oxy Metal Industries Corp
US3920526A (en) * 1974-03-12 1975-11-18 Ibm Process for the electrodeposition of ductile palladium and electroplating bath useful therefor
US4328286A (en) * 1979-04-26 1982-05-04 The International Nickel Co., Inc. Electrodeposited palladium, method of preparation and electrical contact made thereby
US4299670A (en) * 1980-09-22 1981-11-10 Bell Telephone Laboratories, Incorporated Palladium plating procedure and bath
US4284482A (en) * 1980-09-22 1981-08-18 Bell Telephone Laboratories, Incorporated Palladium treatment procedure
US4316779A (en) * 1980-09-26 1982-02-23 Bell Telephone Laboratories, Incorporated Process for electroplating palladium on articles comprising copper
FR2539145B1 (en) * 1983-01-07 1986-08-29 Omi Int Corp PROCESS FOR FORMING AT HIGH SPEED, BY ELECTROLYSIS, A PALLADIUM COATING LAYER ON A SUBSTRATE AND A BATH FOR THE IMPLEMENTATION OF THIS PROCESS
DE3317493A1 (en) * 1983-05-13 1984-11-15 W.C. Heraeus Gmbh, 6450 Hanau GALVANIC DEPOSITION OF PALLADIUM COVERS
US4849303A (en) * 1986-07-01 1989-07-18 E. I. Du Pont De Nemours And Company Alloy coatings for electrical contacts
US4846941A (en) * 1986-07-01 1989-07-11 E. I. Du Pont De Nemours And Company Electroplating bath and process for maintaining plated alloy composition stable
US4743346A (en) * 1986-07-01 1988-05-10 E. I. Du Pont De Nemours And Company Electroplating bath and process for maintaining plated alloy composition stable

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB367587A (en) * 1931-03-12 1932-02-25 Alan Richard Powell Improvements in or relating to the electro-deposition of palladium
GB381931A (en) * 1931-07-11 1932-10-11 Mond Nickel Co Ltd Improvements relating to electro-plating and the electrodeposition of metals
US3150065A (en) * 1961-02-27 1964-09-22 Ibm Method for plating palladium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022129916A1 (en) * 2020-12-18 2022-06-23 Johnson Matthey Public Limited Company Electroplating solutions
GB2615214A (en) * 2020-12-18 2023-08-02 Johnson Matthey Plc Electroplating solutions

Also Published As

Publication number Publication date
NL6603087A (en) 1966-09-12
NL130012C (en)
ES323939A1 (en) 1966-11-16
DE1262722B (en) 1968-03-07
JPS444891B1 (en) 1969-02-28
US3500537A (en) 1970-03-17
CH441921A (en) 1967-08-15
US3544435A (en) 1970-12-01
BE677564A (en) 1966-09-09
FR1473425A (en) 1967-03-17

Similar Documents

Publication Publication Date Title
US4673472A (en) Method and electroplating solution for deposition of palladium or alloys thereof
GB1062681A (en) Electrodeposition of palladium
GB1105189A (en) Electrodeposition of nickel-iron alloy
US2318592A (en) Electrodeposition
US3637474A (en) Electrodeposition of palladium
US2250556A (en) Electrodeposition of copper and bath therefor
GB1272536A (en) Electroplating solutions and process for electroplating using such solutions
US2027358A (en) Electrodeposition of metals of the platinum group
US3238112A (en) Electroplating of metals using mercapto-metal complex salts
GB836978A (en) Electrodeposition of copper and copper alloys
JPS5830395B2 (en) Bath for electrochemically depositing palladium-nickel alloys
ES390466A1 (en) Method of plating copper on aluminum
JPS6250560B2 (en)
GB1035850A (en) Improvements in and relating to the electrodeposition of palladium
US2504272A (en) Electrodeposition of silver
US3206382A (en) Electrodeposition of platinum or palladium
US4297179A (en) Palladium electroplating bath and process
GB853939A (en) Platinum plating composition and process
Radovici et al. Some aspects of copper electrodeposition from pyrophosphate electrolytes
GB1123005A (en) Combined chemical and electrolytic process for the deposition of metallic coatings from aqueous solutions
ES435660A1 (en) Zinc-copper alloy electroplating baths
GB958685A (en) Improvements in or relating to palladium plating
US2439935A (en) Indium electroplating
ARAI et al. Polarographic study on the smoothing of Sn-Ag alloy film electrodeposited from pyrophosphate-iodide bath
US3293157A (en) Process for electrolytic silvering