GB1123015A - A process for producing sintered anodes - Google Patents

A process for producing sintered anodes

Info

Publication number
GB1123015A
GB1123015A GB3327665A GB3327665A GB1123015A GB 1123015 A GB1123015 A GB 1123015A GB 3327665 A GB3327665 A GB 3327665A GB 3327665 A GB3327665 A GB 3327665A GB 1123015 A GB1123015 A GB 1123015A
Authority
GB
United Kingdom
Prior art keywords
less
oxygen
carbon
mixture
graphite
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
GB3327665A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1123015A publication Critical patent/GB1123015A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/052—Sintered electrodes
    • H01G9/0525—Powder therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Powder Metallurgy (AREA)

Abstract

A sintered anode for an electrolytic capacitor containing 1000 to 1500 p.p.m. oxygen and less than 30 p.p.m. carbon is formed by pressing and sintering under vacuum a powder mixture of Ta, Nb, W, Hf, Ti or Zr containing less than 500 p.p.m. carbon and less than 5000 p.p.m. oxygen, with a carbon containing material such as graphite or the carbides of the above metals or a mixture of graphite and a carbide of at least one of the above metals. Sintering is effected above 1800 DEG C. at 10-4 mms. Hg. If the original metal powder contains considerably less than 5000 p.p.m. oxygen an oxide of the metal can be added to the mixture.
GB3327665A 1964-08-07 1965-08-04 A process for producing sintered anodes Expired GB1123015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38826864A 1964-08-07 1964-08-07

Publications (1)

Publication Number Publication Date
GB1123015A true GB1123015A (en) 1968-08-07

Family

ID=23533396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3327665A Expired GB1123015A (en) 1964-08-07 1965-08-04 A process for producing sintered anodes

Country Status (1)

Country Link
GB (1) GB1123015A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508563A (en) * 1984-03-19 1985-04-02 Sprague Electric Company Reducing the oxygen content of tantalum
US6051044A (en) * 1998-05-04 2000-04-18 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
US6165623A (en) * 1996-11-07 2000-12-26 Cabot Corporation Niobium powders and niobium electrolytic capacitors
US6375704B1 (en) 1999-05-12 2002-04-23 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US6402066B1 (en) 1999-03-19 2002-06-11 Cabot Corporation Method of making niobium and other metal powders
US7099143B1 (en) 2005-05-24 2006-08-29 Avx Corporation Wet electrolytic capacitors
US7149074B2 (en) 2001-04-19 2006-12-12 Cabot Corporation Methods of making a niobium metal oxide
US7241436B2 (en) 1998-09-16 2007-07-10 Cabot Corporation Methods to partially reduce certain metal oxides and oxygen reduced metal oxides
US7445679B2 (en) 2003-05-16 2008-11-04 Cabot Corporation Controlled oxygen addition for metal material
US7445762B2 (en) 1998-09-16 2008-11-04 Cabot Corporation Method to partially reduce calcined niobium metal oxide and oxygen reduced niobium oxides
US7515397B2 (en) 2003-05-19 2009-04-07 Cabot Corporation Methods of making a niobium metal oxide and oxygen reduced niobium oxides
US7655214B2 (en) 2003-02-26 2010-02-02 Cabot Corporation Phase formation of oxygen reduced valve metal oxides and granulation methods
CN115148501A (en) * 2022-07-15 2022-10-04 新疆众和股份有限公司 Hot-pressed foil and preparation method thereof, electrode and capacitor

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508563A (en) * 1984-03-19 1985-04-02 Sprague Electric Company Reducing the oxygen content of tantalum
US6165623A (en) * 1996-11-07 2000-12-26 Cabot Corporation Niobium powders and niobium electrolytic capacitors
US6420043B1 (en) 1996-11-07 2002-07-16 Cabot Corporation Niobium powders and niobium electrolytic capacitors
US6896715B2 (en) 1998-05-04 2005-05-24 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
US6051044A (en) * 1998-05-04 2000-04-18 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
US6338816B1 (en) 1998-05-04 2002-01-15 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
US6616728B2 (en) 1998-05-04 2003-09-09 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
US7445762B2 (en) 1998-09-16 2008-11-04 Cabot Corporation Method to partially reduce calcined niobium metal oxide and oxygen reduced niobium oxides
US7241436B2 (en) 1998-09-16 2007-07-10 Cabot Corporation Methods to partially reduce certain metal oxides and oxygen reduced metal oxides
US6402066B1 (en) 1999-03-19 2002-06-11 Cabot Corporation Method of making niobium and other metal powders
US7156893B2 (en) 1999-03-19 2007-01-02 Cabot Corporation Method of making niobium and other metal powders
US6706240B2 (en) 1999-03-19 2004-03-16 Cabot Corporation Method of making niobium and other metal powders
US6375704B1 (en) 1999-05-12 2002-04-23 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US6702869B2 (en) 1999-05-12 2004-03-09 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US7749297B2 (en) 1999-05-12 2010-07-06 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US7149074B2 (en) 2001-04-19 2006-12-12 Cabot Corporation Methods of making a niobium metal oxide
US7655214B2 (en) 2003-02-26 2010-02-02 Cabot Corporation Phase formation of oxygen reduced valve metal oxides and granulation methods
US7445679B2 (en) 2003-05-16 2008-11-04 Cabot Corporation Controlled oxygen addition for metal material
US7515397B2 (en) 2003-05-19 2009-04-07 Cabot Corporation Methods of making a niobium metal oxide and oxygen reduced niobium oxides
US8110172B2 (en) 2003-05-19 2012-02-07 Cabot Corporation Methods of making a niobium metal oxide and oxygen reduced niobium oxides
US7099143B1 (en) 2005-05-24 2006-08-29 Avx Corporation Wet electrolytic capacitors
CN115148501A (en) * 2022-07-15 2022-10-04 新疆众和股份有限公司 Hot-pressed foil and preparation method thereof, electrode and capacitor
CN115148501B (en) * 2022-07-15 2023-10-03 新疆众和股份有限公司 Hot-pressed foil, preparation method thereof, electrode and capacitor

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