GB1449080A - Electrolyte for applying barrier anodic coatings - Google Patents

Electrolyte for applying barrier anodic coatings

Info

Publication number
GB1449080A
GB1449080A GB5154774A GB5154774A GB1449080A GB 1449080 A GB1449080 A GB 1449080A GB 5154774 A GB5154774 A GB 5154774A GB 5154774 A GB5154774 A GB 5154774A GB 1449080 A GB1449080 A GB 1449080A
Authority
GB
United Kingdom
Prior art keywords
anodizing
metal
bath
organic
trichlorethylene
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
GB5154774A
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.)
Energy Research and Development Administration ERDA
Original Assignee
Energy Research and Development Administration ERDA
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 Energy Research and Development Administration ERDA filed Critical Energy Research and Development Administration ERDA
Publication of GB1449080A publication Critical patent/GB1449080A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

1449080 Anodizing in an aqueous-organic bath UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 28 Nov 1974 [8 Jan 1974] 51547/74 Heading C7B [ Also in Division C2] Nb, Ta, Ti, W, Be, U, A1 or their alloys are anodized in an aqueous bath containing an organic polar material and a quaternary ammonium salt containing a complex metal-containing anion. The organic material may be EtOH, MeOh, PrOH or ethylene glycol and constitute 1-80% by vol. of the total solvent. The quaternary compound may be of Formula (R 4 N)(M x O y H z ) where R is C1-4 alkyl and/or aryl, M is Nb, Ta or Ti, there being at least two metal atoms present, and x, y and z having values dependent on the valency of M, examples being tetramethylammonium niobate, tantalate and titanate. The metal may be first cleaned e.g. (1) in detergent followed by vapour degrease; (2) sequentially in alkali, trichlorethylene (with ultrasonic vibration) and EtOH; or (3) for Al and its alloys, sequentially in trichlorethylene, NaOH, HNO 3 and H 2 SO 4 followed by brief anodizing in the H 2 SO 4 and soaking therein after anodizing. Anodizing may be at 0-60‹C, at 150-500V, using a c.d. 0À1-10 mA/cm<SP>2</SP>, and a Pt, Ta or stainless steel cathode. The bath produces a gelatinous layer which may be washed off leaving a thin barrier anodic layer (up to 10<SP>-7</SP>m thick). The metal may be reanodized.
GB5154774A 1974-01-08 1974-11-28 Electrolyte for applying barrier anodic coatings Expired GB1449080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431818A US3864219A (en) 1974-01-08 1974-01-08 Process and electrolyte for applying barrier layer anodic coatings

Publications (1)

Publication Number Publication Date
GB1449080A true GB1449080A (en) 1976-09-08

Family

ID=23713563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5154774A Expired GB1449080A (en) 1974-01-08 1974-11-28 Electrolyte for applying barrier anodic coatings

Country Status (6)

Country Link
US (1) US3864219A (en)
JP (1) JPS50100570A (en)
CA (1) CA1030096A (en)
DE (1) DE2500541A1 (en)
FR (1) FR2256969B3 (en)
GB (1) GB1449080A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5376848A (en) * 1976-12-20 1978-07-07 Toshiba Corp Electrochromic display device
JPS6045008A (en) * 1983-08-22 1985-03-11 松下電器産業株式会社 Thin film condenser and method of producing same
DE3665984D1 (en) * 1985-11-25 1989-11-09 Alusuisse Process for manufacturing a micro filter
US5441618A (en) * 1992-11-10 1995-08-15 Casio Computer Co., Ltd. Anodizing apparatus and an anodizing method
US5716511A (en) * 1996-08-07 1998-02-10 Kemet Electronics Corporation Anodizing electrolyte and its use
GB9825043D0 (en) * 1998-11-16 1999-01-13 Agfa Gevaert Ltd Production of support for lithographic printing plate
US7125610B2 (en) * 2003-03-17 2006-10-24 Kemet Electronics Corporation Capacitor containing aluminum anode foil anodized in low water content glycerine-phosphate electrolyte without a pre-anodizing hydration step
US20060091020A1 (en) * 2004-10-29 2006-05-04 Medtronic, Inc. Processes and systems for formation of high voltage, anodic oxide on a valve metal anode
US20060191796A1 (en) * 2004-12-06 2006-08-31 Greatbatch, Inc. Anodizing Valve Metals By Controlled Power
WO2006106703A1 (en) * 2005-03-30 2006-10-12 Showa Denko K. K. Solid electrolytic capacitor element, method for manufacturing same, and solid electrolytic capacitor
KR101297489B1 (en) * 2005-06-17 2013-08-16 미쓰비시 가가꾸 가부시키가이샤 Metal oxide film, laminate, metal member and process for producing the same
CN1908245B (en) * 2006-07-24 2010-08-11 北京航空航天大学 Titanium alloy anode oxidation technique based on ammonium tartrate system
US20110284390A1 (en) * 2007-01-17 2011-11-24 Thomas David Burleigh Method of anodizing steel
US20080169200A1 (en) * 2007-01-17 2008-07-17 Thomas David Burleigh Method of Anodizing Steel
WO2008143234A1 (en) 2007-05-21 2008-11-27 Showa Denko K. K. Method and apparatus for manufacturing solid electrolytic capacitor
US8236475B2 (en) * 2008-05-19 2012-08-07 Advanced Micro Devices, Inc. Methods for removing a photoresist from a metal-comprising material
US8044427B2 (en) * 2008-06-24 2011-10-25 Dicon Fiberoptics, Inc. Light emitting diode submount with high thermal conductivity for high power operation
US9478587B1 (en) 2015-12-22 2016-10-25 Dicon Fiberoptics Inc. Multi-layer circuit board for mounting multi-color LED chips into a uniform light emitter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524799A (en) * 1969-06-13 1970-08-18 Reynolds Metals Co Anodizing aluminum
US3796644A (en) * 1972-05-03 1974-03-12 Sprague Electric Co Electrolytic formation process for aluminum capacitor electrodes

Also Published As

Publication number Publication date
FR2256969B3 (en) 1977-09-30
FR2256969A1 (en) 1975-08-01
CA1030096A (en) 1978-04-25
JPS50100570A (en) 1975-08-09
DE2500541A1 (en) 1975-07-17
US3864219A (en) 1975-02-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee