FR2218400A2 - Depositing molybdenum onto substrates - contg. alkaline molybdate, transition metal salt and salt of org. acid - Google Patents

Depositing molybdenum onto substrates - contg. alkaline molybdate, transition metal salt and salt of org. acid

Info

Publication number
FR2218400A2
FR2218400A2 FR7306047A FR7306047A FR2218400A2 FR 2218400 A2 FR2218400 A2 FR 2218400A2 FR 7306047 A FR7306047 A FR 7306047A FR 7306047 A FR7306047 A FR 7306047A FR 2218400 A2 FR2218400 A2 FR 2218400A2
Authority
FR
France
Prior art keywords
salt
transition metal
contg
org
acid
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
FR7306047A
Other languages
French (fr)
Other versions
FR2218400B2 (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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7306047A priority Critical patent/FR2218400A2/en
Priority to US05/370,629 priority patent/US3947331A/en
Publication of FR2218400A2 publication Critical patent/FR2218400A2/en
Application granted granted Critical
Publication of FR2218400B2 publication Critical patent/FR2218400B2/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
    • 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
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • 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
    • 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
    • C25D5/625—Discontinuous layers, e.g. microcracked layers

Landscapes

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

Abstract

In the parent patent a deposit of Mo and >=1 transition metal is made by means of a bath contg. an alkaline molybdate, a transition metal salt and an alkaline salt of an organic acid having a mixed alcohols-acids functions; the pH being 9-11; the cathodic current has a density > the 'fissuration threshold', and deposition is carried out for the 'scaling time'. In the addn. a series of layers are deposited with the current density chosen as a function of the layer thickness at which it will not cause fissuration, alternated with layers deposited at a current density and thickness such that fissuration occurs.
FR7306047A 1970-11-30 1973-02-21 Depositing molybdenum onto substrates - contg. alkaline molybdate, transition metal salt and salt of org. acid Granted FR2218400A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7306047A FR2218400A2 (en) 1973-02-21 1973-02-21 Depositing molybdenum onto substrates - contg. alkaline molybdate, transition metal salt and salt of org. acid
US05/370,629 US3947331A (en) 1970-11-30 1973-06-18 Methods for forming an electrolytic deposit containing molybdenum on a support and the products obtained thereby

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7306047A FR2218400A2 (en) 1973-02-21 1973-02-21 Depositing molybdenum onto substrates - contg. alkaline molybdate, transition metal salt and salt of org. acid

Publications (2)

Publication Number Publication Date
FR2218400A2 true FR2218400A2 (en) 1974-09-13
FR2218400B2 FR2218400B2 (en) 1976-11-05

Family

ID=9115159

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306047A Granted FR2218400A2 (en) 1970-11-30 1973-02-21 Depositing molybdenum onto substrates - contg. alkaline molybdate, transition metal salt and salt of org. acid

Country Status (1)

Country Link
FR (1) FR2218400A2 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2218400B2 (en) 1976-11-05

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