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
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.
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)
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 |
-
1968
- 1968-07-18 GB GB1228939D patent/GB1228939A/en not_active Expired
Cited By (3)
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 |