GB1228939A - - Google Patents

Info

Publication number
GB1228939A
GB1228939A GB1228939DA GB1228939A GB 1228939 A GB1228939 A GB 1228939A GB 1228939D A GB1228939D A GB 1228939DA GB 1228939 A GB1228939 A GB 1228939A
Authority
GB
United Kingdom
Prior art keywords
july
anodic
niobium
heading
tantalum
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
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 claimed from DE19671614736 external-priority patent/DE1614736B2/en
Application filed filed Critical
Publication of GB1228939A publication Critical patent/GB1228939A/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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/26—Anodisation of refractory metals or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

1,228,939. Anodic oxidation of tantalum or niobium. INTERNATIONAL STANDARD ELECTRIC CORP. July 18, 1968 [July 22, 1967], No.34324/68. Heading C7B. Dielectric oxide layers are formed on Ta or Nb bodies for electrical capacitors by anodic action in an electrolyte mixture consisting of 47 to 90% acetic or propionic acid with the remainder provided by a 1% aqueous solution of phosphoric acid. The forming voltage employed may be up to 400 volts.
GB1228939D 1967-07-22 1968-07-18 Expired GB1228939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671614736 DE1614736B2 (en) 1967-07-22 1967-07-22 PROCESS FOR SHAPING TANTALUM OR NIOB ELECTRODES FOR ELECTRIC CAPACITORS

Publications (1)

Publication Number Publication Date
GB1228939A true GB1228939A (en) 1971-04-21

Family

ID=5682032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228939D Expired GB1228939A (en) 1967-07-22 1968-07-18

Country Status (1)

Country Link
GB (1) GB1228939A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602521A1 (en) * 1986-08-11 1988-02-12 Sprague Electric Co VOLATILE ELECTROLYTES OF ANODIZATION FOR TANTALE
EP1826297A2 (en) * 2006-02-23 2007-08-29 Greatbatch Ltd. Anodizing electrolytes using a dual acid system for high voltage electrolytic capacitor anodes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602521A1 (en) * 1986-08-11 1988-02-12 Sprague Electric Co VOLATILE ELECTROLYTES OF ANODIZATION FOR TANTALE
EP1826297A2 (en) * 2006-02-23 2007-08-29 Greatbatch Ltd. Anodizing electrolytes using a dual acid system for high voltage electrolytic capacitor anodes
EP1826297A3 (en) * 2006-02-23 2009-05-13 Greatbatch Ltd. Anodizing electrolytes using a dual acid system for high voltage electrolytic capacitor anodes

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees