HUP0202210A2 - Eljárás káliummal adalékolt volfrám por előállítására, bóradagolással - Google Patents

Eljárás káliummal adalékolt volfrám por előállítására, bóradagolással

Info

Publication number
HUP0202210A2
HUP0202210A2 HU0202210A HUP0202210A HUP0202210A2 HU P0202210 A2 HUP0202210 A2 HU P0202210A2 HU 0202210 A HU0202210 A HU 0202210A HU P0202210 A HUP0202210 A HU P0202210A HU P0202210 A2 HUP0202210 A2 HU P0202210A2
Authority
HU
Hungary
Prior art keywords
potassium
doped
doped tungsten
tungsten powder
boron
Prior art date
Application number
HU0202210A
Other languages
English (en)
Inventor
Hans-Joachim Lunk
Anna S. Nached
Michael Salmen
Henry J. Stevens
Maria B. Winnicka
Original Assignee
Osram Sylvania Inc.
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 Osram Sylvania Inc. filed Critical Osram Sylvania Inc.
Publication of HU0202210D0 publication Critical patent/HU0202210D0/hu
Publication of HUP0202210A2 publication Critical patent/HUP0202210A2/hu
Publication of HUP0202210A3 publication Critical patent/HUP0202210A3/hu

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
    • C22C1/045—Alloys based on refractory metals
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G41/00—Compounds of tungsten
    • C01G41/006—Compounds containing, besides tungsten, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Ceramic Products (AREA)
  • Luminescent Compositions (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

A találmány káliummal adalékolt wolframpor előállítására vonatkozik,ahol egy bóradagolást végeznek. A bórt a káliummal adalékoltkiindulási anyaghoz előnyösen bórsav formájában adagolják, majd azelegyet redukálják a káliummal adalékolt wolframpor előállítására. Abóradagolás eredményeképpen megnövekedik a káliummal adalékoltwolframporba a kálium beépülése és ugyancsak megnövekedik a káliummaladalékolt wolframporból készült szinterezett sajtolt termékekben akálium visszatartása. Ó
HU0202210A 2001-07-09 2002-07-08 Boron addition for making potassium-doped tungsten HUP0202210A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/902,353 US6478845B1 (en) 2001-07-09 2001-07-09 Boron addition for making potassium-doped tungsten

Publications (3)

Publication Number Publication Date
HU0202210D0 HU0202210D0 (hu) 2002-09-28
HUP0202210A2 true HUP0202210A2 (hu) 2003-03-28
HUP0202210A3 HUP0202210A3 (en) 2004-03-01

Family

ID=25415743

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0202210A HUP0202210A3 (en) 2001-07-09 2002-07-08 Boron addition for making potassium-doped tungsten

Country Status (8)

Country Link
US (1) US6478845B1 (hu)
EP (1) EP1275742B1 (hu)
JP (1) JP4118620B2 (hu)
CN (1) CN1229198C (hu)
AT (1) ATE250147T1 (hu)
DE (1) DE60200032T2 (hu)
HU (1) HUP0202210A3 (hu)
TW (1) TW567105B (hu)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049039B4 (de) * 2004-10-08 2009-05-07 H.C. Starck Gmbh Verfahren zur Herstellung feinteiliger Ventilmetallpulver
CN1297486C (zh) * 2005-04-01 2007-01-31 北京科技大学 一种纳米级钨粉的制备方法
CN100453215C (zh) * 2005-10-11 2009-01-21 自贡硬质合金有限责任公司 含钾金属钨条的生产方法
JP5613861B2 (ja) * 2012-06-22 2014-10-29 昭和電工株式会社 固体電解コンデンサの陽極体
CN108274017A (zh) * 2018-03-14 2018-07-13 自贡硬质合金有限责任公司 一种掺钾金属钨板及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT285185B (de) * 1968-12-23 1970-10-12 Plansee Metallwerk Gesinterte Wolframlegierung
US3773493A (en) * 1971-12-22 1973-11-20 Westinghouse Electric Corp Method of producing doped tungsten powders by chemical deposition
US4123833A (en) * 1977-10-13 1978-11-07 Westinghouse Electric Corp. Method of producing doped tungsten filaments by ion-implantation
AT392432B (de) * 1989-05-03 1991-03-25 Plansee Metallwerk Verfahren zur herstellung von warmkriechfesten halbfabrikaten oder formteilen aus hochschmelzenden metallen
DE19607355C2 (de) 1995-03-03 2001-10-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Herstellung von Wolframdraht, Wolframdraht und Glühlampe mit einem solchen Wolframdraht
DE19607356C2 (de) 1995-03-03 2001-09-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zur Erzeugung eines vibrations- und durchhangarmen Wolframdrahtes, Wolframdraht und Glühlampe mit einem solchen Wolframdraht
US6165412A (en) 1999-09-07 2000-12-26 Osram Sylvania Inc. Method of making non-sag tungsten wire for electric lamps
US6129890A (en) 1999-09-07 2000-10-10 Osram Sylvania Inc. Method of making non-sag tungsten wire

Also Published As

Publication number Publication date
US6478845B1 (en) 2002-11-12
JP2003105412A (ja) 2003-04-09
TW567105B (en) 2003-12-21
DE60200032D1 (de) 2003-10-23
CN1396028A (zh) 2003-02-12
JP4118620B2 (ja) 2008-07-16
EP1275742B1 (en) 2003-09-17
CN1229198C (zh) 2005-11-30
EP1275742A1 (en) 2003-01-15
HU0202210D0 (hu) 2002-09-28
ATE250147T1 (de) 2003-10-15
HUP0202210A3 (en) 2004-03-01
DE60200032T2 (de) 2004-05-13

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Legal Events

Date Code Title Description
FD9A Lapse of provisional protection due to non-payment of fees