GB777591A - Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal - Google Patents

Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal

Info

Publication number
GB777591A
GB777591A GB27915/54A GB2791554A GB777591A GB 777591 A GB777591 A GB 777591A GB 27915/54 A GB27915/54 A GB 27915/54A GB 2791554 A GB2791554 A GB 2791554A GB 777591 A GB777591 A GB 777591A
Authority
GB
United Kingdom
Prior art keywords
tungsten
plated
alkali metal
plating
amps
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
GB27915/54A
Inventor
George Leonard Davis
Charles Harold Raymond Gentry
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve Co 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 NL108205D priority Critical patent/NL108205C/xx
Priority to NL200748D priority patent/NL200748A/xx
Priority to BE541584D priority patent/BE541584A/xx
Application filed by Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Priority to GB27915/54A priority patent/GB777591A/en
Priority to DEN11228A priority patent/DE1014406B/en
Priority to CH2471955A priority patent/CH371265A/en
Priority to FR1139334D priority patent/FR1139334A/en
Publication of GB777591A publication Critical patent/GB777591A/en
Priority to GB41003/65A priority patent/GB1104728A/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
    • C25D3/66—Electroplating: Baths therefor from melts
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C25B1/265—Chlorates
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • 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
    • C25D5/18—Electroplating using modulated, pulsed or reversing current
    • 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
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/623—Porosity of the layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

777,591. Electrodeposition of tungsten and/or molybdenum. MULLARD RADIO VALVE CO., Ltd. Aug. 10, 1955 [Sept. 27, 1954], No. 27915/54. Class 41. Tungsten and/or molybdenum are plated from a fused bath comprising (1) alkali metal tungstates and/or molybdates, (2) alkali metal borates or phosphates, and (3) tungstic and/or molybdic oxide. The preferred alkali metal salts are the mixed lithium-sodium salts and optimum results are obtained in the temperature range 800-950‹ C. Any inert anode may be used but preferably one of the same metal as is being plated is used. Plating may be done on various basis metals or on carbon but nickel or one of the precious metals at least as a surface coating is desirable. The preferred material for the cell is platinum, zirconia or graphite. Plating may be effected by direct or periodic reverse plating, the current density being 0.5-100 amps./dm.<SP>2</SP> in the first case and 100-1000 amps./dm.<SP>2</SP> in both directions in the second case. Shaped bases may be plated and the base subsequently dissolved out.
GB27915/54A 1954-09-27 1954-09-27 Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal Expired GB777591A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL108205D NL108205C (en) 1954-09-27
NL200748D NL200748A (en) 1954-09-27
BE541584D BE541584A (en) 1954-09-27
GB27915/54A GB777591A (en) 1954-09-27 1954-09-27 Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal
DEN11228A DE1014406B (en) 1954-09-27 1955-09-24 Molten bath, process and anode for the electrodeposition of tungsten and / or molybdenum
CH2471955A CH371265A (en) 1954-09-27 1955-09-26 Process for the production of objects which at least partly consist of tungsten and / or molybdenum
FR1139334D FR1139334A (en) 1954-09-27 1955-09-26 electroplating of tungsten and molybdenum
GB41003/65A GB1104728A (en) 1954-09-27 1965-09-27 Electrolytic cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27915/54A GB777591A (en) 1954-09-27 1954-09-27 Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal

Publications (1)

Publication Number Publication Date
GB777591A true GB777591A (en) 1957-06-26

Family

ID=10267351

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27915/54A Expired GB777591A (en) 1954-09-27 1954-09-27 Improvements in and relating to the electro-deposition of tungsten and/or molybdenummetal
GB41003/65A Expired GB1104728A (en) 1954-09-27 1965-09-27 Electrolytic cell

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB41003/65A Expired GB1104728A (en) 1954-09-27 1965-09-27 Electrolytic cell

Country Status (6)

Country Link
BE (1) BE541584A (en)
CH (1) CH371265A (en)
DE (1) DE1014406B (en)
FR (1) FR1139334A (en)
GB (2) GB777591A (en)
NL (2) NL108205C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261773A (en) * 1959-01-12 1966-07-19 Siemens Ag Apparatus for doping and contacting semiconductor bodies
US3369978A (en) * 1964-10-01 1968-02-20 Interior Usa Electrodeposition of molybdenum
US7824465B2 (en) 2005-03-29 2010-11-02 Climax Engineered Materials, Llc Methods for producing metal powders
US8197885B2 (en) 2008-01-11 2012-06-12 Climax Engineered Materials, Llc Methods for producing sodium/molybdenum power compacts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2244708B1 (en) 1973-09-25 1977-08-12 Ugine Kuhlmann
FR2446869A1 (en) * 1979-01-16 1980-08-14 Ugine Kuhlmann IMPROVED FARADAY YIELD IN THE ELECTROLYTIC PREPARATION OF SODIUM CHLORATE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR638345A (en) * 1926-12-01 1928-05-22 Electrolytic process particularly applicable to the manufacture of a certain number of metalloids, metals, alloys, binary or more complex compounds
DE514365C (en) * 1928-09-11 1930-12-11 Hellmuth Hartmann Dr Ing Process for the electrolytic extraction of metals, in particular tungsten

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261773A (en) * 1959-01-12 1966-07-19 Siemens Ag Apparatus for doping and contacting semiconductor bodies
US3369978A (en) * 1964-10-01 1968-02-20 Interior Usa Electrodeposition of molybdenum
US7824465B2 (en) 2005-03-29 2010-11-02 Climax Engineered Materials, Llc Methods for producing metal powders
US8206485B2 (en) 2005-03-29 2012-06-26 Climax Engineered Material, LLC Metal powders and methods for producing the same
US8197885B2 (en) 2008-01-11 2012-06-12 Climax Engineered Materials, Llc Methods for producing sodium/molybdenum power compacts

Also Published As

Publication number Publication date
GB1104728A (en) 1968-02-28
FR1139334A (en) 1957-06-27
BE541584A (en)
NL108205C (en)
NL200748A (en)
DE1014406B (en) 1957-08-22
CH371265A (en) 1963-08-15

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