ES2033947T3 - Polvos de tantalo que contienen laminillas. - Google Patents

Polvos de tantalo que contienen laminillas.

Info

Publication number
ES2033947T3
ES2033947T3 ES198888101765T ES88101765T ES2033947T3 ES 2033947 T3 ES2033947 T3 ES 2033947T3 ES 198888101765 T ES198888101765 T ES 198888101765T ES 88101765 T ES88101765 T ES 88101765T ES 2033947 T3 ES2033947 T3 ES 2033947T3
Authority
ES
Spain
Prior art keywords
tantalo
powder
powders containing
micrometers
containing sheets
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 - Lifetime
Application number
ES198888101765T
Other languages
English (en)
Inventor
Edward Karl Schiele
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.)
Tantalum Production Inc(delaware Corporation)
Original Assignee
Tantalum Production Inc(delaware Corporation)
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 Tantalum Production Inc(delaware Corporation) filed Critical Tantalum Production Inc(delaware Corporation)
Application granted granted Critical
Publication of ES2033947T3 publication Critical patent/ES2033947T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

SE PRESENTA UN COMPUESTO DE POLVO DE TANTALO NO AGLOMERADO (O PREAGLOMERADO) QUE INCLUYE POLVO DE TANTALO QUE TIENE UNA MEDIA DE FSSS DE MENOS DE DOS MICROMETROS, PREFERIBLEMENTE EN EL RANGO ENTRE 0.6 A 1.1 MICROMETROS, UNA DENSIDAD SCOTT NO SUPERIOR DE 30 G/IN3, Y UNA SUPERFICIE BET DE MENOS DE 0.7 M2/G. EN UNA FORMA DEL INVENTO, DICHO POLVO SE AGLOMERA Y SE MUELE PARA FORMAR UN PRODUCTO DE POLVOS DE TANTALO QUE TIENE UN TAMAÑO DE PARTICULA DE ALREDEDOR DE 2 A 3 MICROMETROS, UNA SUPERFICIE BET DE ALREDEDOR DE 0.43 M2/G, UNA DENSIDAD SCOTT EN EL RANGO DE ENTRE 18 Y 27 G/IN3.
ES198888101765T 1987-03-26 1988-02-05 Polvos de tantalo que contienen laminillas. Expired - Lifetime ES2033947T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/030,334 US4740238A (en) 1987-03-26 1987-03-26 Platelet-containing tantalum powders

Publications (1)

Publication Number Publication Date
ES2033947T3 true ES2033947T3 (es) 1993-04-01

Family

ID=21853729

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888101765T Expired - Lifetime ES2033947T3 (es) 1987-03-26 1988-02-05 Polvos de tantalo que contienen laminillas.

Country Status (5)

Country Link
US (1) US4740238A (es)
EP (1) EP0284738B1 (es)
JP (1) JPS63238203A (es)
DE (1) DE3873951T2 (es)
ES (1) ES2033947T3 (es)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5580367A (en) * 1987-11-30 1996-12-03 Cabot Corporation Flaked tantalum powder and method of using same flaked tantalum powder
US4940490A (en) * 1987-11-30 1990-07-10 Cabot Corporation Tantalum powder
US5211741A (en) * 1987-11-30 1993-05-18 Cabot Corporation Flaked tantalum powder
DE3820960A1 (de) * 1988-06-22 1989-12-28 Starck Hermann C Fa Feinkoernige hochreine erdsaeuremetallpulver, verfahren zu ihrer herstellung sowie deren verwendung
ES2020131A6 (es) * 1989-06-26 1991-07-16 Cabot Corp Procedimiento para la produccion de polvos de tantalo, niobio y sus aleaciones.
US5082491A (en) * 1989-09-28 1992-01-21 V Tech Corporation Tantalum powder with improved capacitor anode processing characteristics
DE4003253A1 (de) * 1990-02-03 1991-08-08 Starck Hermann C Fa Hochkapazitive erdsaeuremetallpulver, verfahren zu ihrer herstellung sowie deren verwendung
DE4214722C2 (de) * 1992-05-04 1994-08-25 Starck H C Gmbh Co Kg Feinteilige Metallpulver
US5993513A (en) 1996-04-05 1999-11-30 Cabot Corporation Method for controlling the oxygen content in valve metal materials
KR100484686B1 (ko) * 1996-04-25 2005-06-16 캐보트 코포레이션 탄탈륨분말의크기조절방법,크기분포가조절된탄탈륨금속분말의제조방법및그로부터제조되는생성물
US5954856A (en) * 1996-04-25 1999-09-21 Cabot Corporation Method of making tantalum metal powder with controlled size distribution and products made therefrom
US6165623A (en) * 1996-11-07 2000-12-26 Cabot Corporation Niobium powders and niobium electrolytic capacitors
US6238456B1 (en) * 1997-02-19 2001-05-29 H. C. Starck Gmbh & Co. Kg Tantalum powder, method for producing same powder and sintered anodes obtained from it
US6051044A (en) * 1998-05-04 2000-04-18 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
CN1607055B (zh) 1998-05-06 2011-05-04 H.C.施塔克公司 铌粉、以其制备的阳极以及含有该阳极的电容器
BRPI9917635B1 (pt) * 1998-05-06 2017-06-06 Starck H C Gmbh Co Kg pó de nióbio na forma de partículas aglomeradas primárias e método para a obtenção de um anodo de capacitor
US6576038B1 (en) * 1998-05-22 2003-06-10 Cabot Corporation Method to agglomerate metal particles and metal particles having improved properties
JP3871824B2 (ja) 1999-02-03 2007-01-24 キャボットスーパーメタル株式会社 高容量コンデンサー用タンタル粉末
EP1171254A1 (en) 1999-03-19 2002-01-16 Cabot Corporation Making niobium and other metal powders by milling
US6558447B1 (en) 1999-05-05 2003-05-06 H.C. Starck, Inc. Metal powders produced by the reduction of the oxides with gaseous magnesium
US6375704B1 (en) 1999-05-12 2002-04-23 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US6849104B2 (en) * 2000-10-10 2005-02-01 H. C. Starck Inc. Metalothermic reduction of refractory metal oxides
RU2302928C2 (ru) * 2001-05-04 2007-07-20 Х.Ц. Штарк, Инк. Металлотермическое восстановление окислов тугоплавких металлов
US7981191B2 (en) * 2007-10-15 2011-07-19 Hi-Temp Specialty Metals, Inc. Method for the production of tantalum powder using reclaimed scrap as source material
CN105026078B (zh) 2013-03-13 2017-10-24 凯米特电子公司 低能量研磨以制备片状粉末
EP3089180B1 (en) * 2013-12-25 2019-11-06 Ningxia Orient Tantalum Industry Co., Ltd. Capacitor grade high specific volume tantalum powder improving electrical performance and preparation method therefor
CN103878364B (zh) * 2014-04-23 2017-03-29 宁夏东方钽业股份有限公司 一种改善了耐电压性能的中压钽粉的制备方法
WO2016026092A1 (zh) * 2014-08-20 2016-02-25 宁夏东方钽业股份有限公司 一种复合钽粉及其制备方法及该钽粉制备的电容器阳极
WO2018031943A1 (en) * 2016-08-12 2018-02-15 Composite Materials Technology, Inc. Electrolytic capacitor and method for improved electrolytic capacitor anodes
CN112620636B (zh) * 2020-12-15 2021-09-03 江门富祥电子材料有限公司 一种耐高压片形钽粉的生产方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295951A (en) * 1965-02-02 1967-01-03 Nat Res Corp Production of metals
JPS5241465B1 (es) * 1967-10-25 1977-10-18
DE2517180C3 (de) * 1975-04-18 1979-04-19 Fa. Hermann C. Starck Berlin, 1000 Berlin Verfahren zur kontinuierlichen Herstellung von feinem hochkapazitiven Erdsäuremetallpulver für Elektrolytkondensatoren
DE3130392C2 (de) * 1981-07-31 1985-10-17 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur Herstellung reiner agglomerierter Ventilmetallpulver für Elektrolytkondensatoren, deren Verwendung und Verfahren zur Herstellung von Sinteranoden
US4441927A (en) * 1982-11-16 1984-04-10 Cabot Corporation Tantalum powder composition
US4502884A (en) * 1983-10-27 1985-03-05 Cabot Corporation Method for producing fiber-shaped tantalum powder and the powder produced thereby
US4555268A (en) * 1984-12-18 1985-11-26 Cabot Corporation Method for improving handling properties of a flaked tantalum powder composition
US4684399A (en) * 1986-03-04 1987-08-04 Cabot Corporation Tantalum powder process
JPS62278210A (ja) * 1986-03-04 1987-12-03 キヤボツト　コ−ポレ−シヨン コンデンサ−グレ−ドタンタル粉末の製法

Also Published As

Publication number Publication date
US4740238A (en) 1988-04-26
EP0284738A2 (en) 1988-10-05
DE3873951D1 (de) 1992-10-01
DE3873951T2 (de) 1993-03-25
EP0284738B1 (en) 1992-08-26
EP0284738A3 (en) 1989-08-23
JPS63238203A (ja) 1988-10-04

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