BR9807239A - Pós de tântalo, processos para a sua preparação, bem como anodos de sinterização preparados a partir deles - Google Patents

Pós de tântalo, processos para a sua preparação, bem como anodos de sinterização preparados a partir deles

Info

Publication number
BR9807239A
BR9807239A BR9807239-0A BR9807239A BR9807239A BR 9807239 A BR9807239 A BR 9807239A BR 9807239 A BR9807239 A BR 9807239A BR 9807239 A BR9807239 A BR 9807239A
Authority
BR
Brazil
Prior art keywords
preparation
processes
well
anodes prepared
tantalum powders
Prior art date
Application number
BR9807239-0A
Other languages
English (en)
Inventor
Karlheinz Reichert
Ruediger Wolf
Christine Rawohl
Original Assignee
Starck H C Gmbh Co Kg
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7820742&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9807239(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Starck H C Gmbh Co Kg filed Critical Starck H C Gmbh Co Kg
Publication of BR9807239A publication Critical patent/BR9807239A/pt

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • 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)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Patente de Invenção: <B>"PóS DE TâNTALO, PROCESSOS PARA A SUA PREPARAçãO, BEM COMO ANODOS DE SINTERIZAçãO PREPARADOS A PARTIR DELES"<D>. Descreve-se um pó de tântalo livre de álcalis e de flúor, que apresenta, em pequeno tamanho de grãos primários, tamanho de grãos secundários comparativamente grande e que é adequado para a preparação de condensadores com carga específica de 100.000 até 180.000 <109>FV/g, com correntes residuais específicas de menos do que 2 nA/<109>FV.
BR9807239-0A 1997-02-19 1998-02-09 Pós de tântalo, processos para a sua preparação, bem como anodos de sinterização preparados a partir deles BR9807239A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19706416 1997-02-19
PCT/EP1998/000698 WO1998037248A1 (de) 1997-02-19 1998-02-09 Tantal-pulver, verfahren zu seiner herstellung, sowie daraus erhältliche sinteranoden

Publications (1)

Publication Number Publication Date
BR9807239A true BR9807239A (pt) 2000-04-25

Family

ID=7820742

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9807239-0A BR9807239A (pt) 1997-02-19 1998-02-09 Pós de tântalo, processos para a sua preparação, bem como anodos de sinterização preparados a partir deles

Country Status (13)

Country Link
US (1) US6193779B1 (pt)
EP (1) EP0964936B1 (pt)
JP (4) JP3817742B2 (pt)
KR (1) KR100511027B1 (pt)
CN (2) CN1080319C (pt)
AU (1) AU6396398A (pt)
BR (1) BR9807239A (pt)
CZ (2) CZ304759B6 (pt)
DE (1) DE59801634D1 (pt)
HK (2) HK1026459A1 (pt)
IL (2) IL131248A (pt)
PT (1) PT964936E (pt)
WO (1) WO1998037248A1 (pt)

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Also Published As

Publication number Publication date
JP4616313B2 (ja) 2011-01-19
WO1998037248A1 (de) 1998-08-27
IL131248A0 (en) 2001-01-28
IL146669A0 (en) 2002-07-25
IL131248A (en) 2002-09-12
HK1047188A1 (en) 2003-02-07
KR100511027B1 (ko) 2005-08-31
PT964936E (pt) 2002-03-28
JP2006183150A (ja) 2006-07-13
CN1080319C (zh) 2002-03-06
JP2001512530A (ja) 2001-08-21
US6193779B1 (en) 2001-02-27
JP3817742B2 (ja) 2006-09-06
AU6396398A (en) 1998-09-09
KR20000071175A (ko) 2000-11-25
EP0964936A1 (de) 1999-12-22
CZ304759B6 (cs) 2014-09-24
IL146669A (en) 2007-02-11
CN1247575A (zh) 2000-03-15
JP2007335884A (ja) 2007-12-27
JP2007335885A (ja) 2007-12-27
CZ301097B6 (cs) 2009-11-04
DE59801634D1 (de) 2001-11-08
CZ296199A3 (cs) 2000-08-16
CN1368744A (zh) 2002-09-11
EP0964936B1 (de) 2001-10-04
HK1047188B (zh) 2007-01-19
HK1026459A1 (en) 2000-12-15
JP4137125B2 (ja) 2008-08-20
JP4974799B2 (ja) 2012-07-11
CN1258785C (zh) 2006-06-07

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