BR7306820D0 - Aperfeicoamento em filamento de tungstenio melhorado - Google Patents

Aperfeicoamento em filamento de tungstenio melhorado

Info

Publication number
BR7306820D0
BR7306820D0 BR6820/73A BR682073A BR7306820D0 BR 7306820 D0 BR7306820 D0 BR 7306820D0 BR 6820/73 A BR6820/73 A BR 6820/73A BR 682073 A BR682073 A BR 682073A BR 7306820 D0 BR7306820 D0 BR 7306820D0
Authority
BR
Brazil
Prior art keywords
tungsten film
improved tungsten
film improvement
improvement
improved
Prior art date
Application number
BR6820/73A
Other languages
English (en)
Portuguese (pt)
Inventor
T Dunham
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of BR7306820D0 publication Critical patent/BR7306820D0/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B23K35/402—Non-consumable electrodes; C-electrodes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0031—Matrix based on refractory metals, W, Mo, Nb, Hf, Ta, Zr, Ti, V or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12021—All metal or with adjacent metals having metal particles having composition or density gradient or differential porosity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Discharge Lamp (AREA)
BR6820/73A 1972-09-01 1973-09-03 Aperfeicoamento em filamento de tungstenio melhorado BR7306820D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00285939A US3853491A (en) 1972-09-01 1972-09-01 Tungsten filament having uniform concentration gradient of thoria particles

Publications (1)

Publication Number Publication Date
BR7306820D0 true BR7306820D0 (pt) 1974-06-27

Family

ID=23096340

Family Applications (1)

Application Number Title Priority Date Filing Date
BR6820/73A BR7306820D0 (pt) 1972-09-01 1973-09-03 Aperfeicoamento em filamento de tungstenio melhorado

Country Status (8)

Country Link
US (1) US3853491A (xx)
JP (1) JPS559941B2 (xx)
BE (1) BE804110A (xx)
BR (1) BR7306820D0 (xx)
DE (1) DE2343278C3 (xx)
FR (1) FR2197994B1 (xx)
GB (1) GB1451234A (xx)
NL (1) NL7312096A (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016446A (en) * 1975-01-31 1977-04-05 Westinghouse Electric Corporation Refractory-oxide-based incandescible radiators and method of making
US4086087A (en) * 1976-12-27 1978-04-25 Lisa Marie Morris Process for the preparation of powdered metal parts
DE3309069C1 (de) * 1983-03-14 1984-06-20 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Elektrode,insbesondere fuer WIG-Schweissverfahren
US5590386A (en) * 1995-07-26 1996-12-31 Osram Sylvania Inc. Method of making an alloy of tungsten and lanthana
JP5086503B2 (ja) * 2001-02-02 2012-11-28 株式会社東芝 トリウムタングステン線の製造方法
JP3640947B2 (ja) * 2002-10-07 2005-04-20 株式会社東芝 イオン源、イオン注入装置、半導体装置の製造方法
WO2005073418A1 (ja) * 2004-01-30 2005-08-11 Nippon Tungsten Co., Ltd. タングステン系焼結体およびその製造方法
US7648933B2 (en) 2006-01-13 2010-01-19 Dynamic Abrasives Llc Composition comprising spinel crystals, glass, and calcium iron silicate
JP5414828B2 (ja) * 2012-04-12 2014-02-12 株式会社東芝 トリウムタングステン合金、トリウムタングステン線、トリウムタングステン線コイル、ならびに電子管用陰極構体

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082933A (en) * 1912-06-19 1913-12-30 Gen Electric Tungsten and method of making the same for use as filaments of incandescent electric lamps and for other purposes.
US2798808A (en) * 1953-02-02 1957-07-09 Westinghouse Electric Corp Method of introducing zirconia into tungsten powder preliminary to forming electrodes
US2846339A (en) * 1953-10-21 1958-08-05 Honeywell Regulator Co Method of forming an electron emitting body
US3278281A (en) * 1957-09-13 1966-10-11 Westinghouse Electric Corp Thoriated tungsten filament or wire and method of making same
US3105290A (en) * 1958-12-18 1963-10-01 Westinghouse Electric Corp Cathode for electron discharge device
AT261237B (de) * 1963-11-20 1968-04-10 Egyesuelt Izzolampa Verfahren zur Herstellung von zumindest einen Zusatz enthaltenden, auf pulvermetallurgischem Wege erhaltenen Metallkörpern
US3475159A (en) * 1967-01-16 1969-10-28 Dow Chemical Co Method for preparing tungsten powders doped with refractory metal oxides

Also Published As

Publication number Publication date
BE804110A (fr) 1973-12-17
JPS4987167A (xx) 1974-08-21
FR2197994A1 (xx) 1974-03-29
DE2343278A1 (de) 1974-03-21
DE2343278B2 (de) 1978-07-20
FR2197994B1 (xx) 1976-05-07
JPS559941B2 (xx) 1980-03-13
GB1451234A (en) 1976-09-29
US3853491A (en) 1974-12-10
NL7312096A (xx) 1974-03-05
DE2343278C3 (de) 1979-03-08

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