JPS4987167A - - Google Patents

Info

Publication number
JPS4987167A
JPS4987167A JP48097838A JP9783873A JPS4987167A JP S4987167 A JPS4987167 A JP S4987167A JP 48097838 A JP48097838 A JP 48097838A JP 9783873 A JP9783873 A JP 9783873A JP S4987167 A JPS4987167 A JP S4987167A
Authority
JP
Japan
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.)
Granted
Application number
JP48097838A
Other languages
Japanese (ja)
Other versions
JPS559941B2 (en
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 filed Critical
Publication of JPS4987167A publication Critical patent/JPS4987167A/ja
Publication of JPS559941B2 publication Critical patent/JPS559941B2/ja
Expired legal-status Critical Current

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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Discharge Lamp (AREA)
JP9783873A 1972-09-01 1973-09-01 Expired JPS559941B2 (en)

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 (2)

Publication Number Publication Date
JPS4987167A true JPS4987167A (en) 1974-08-21
JPS559941B2 JPS559941B2 (en) 1980-03-13

Family

ID=23096340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9783873A Expired JPS559941B2 (en) 1972-09-01 1973-09-01

Country Status (8)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002226935A (en) * 2001-02-02 2002-08-14 Toshiba Corp Thorium-tungsten alloy, thorium-tungsten wire, method for manufacturing the same, thorium-tungsten wire coil, and cathode structure for electron tube
JP2012167376A (en) * 2012-04-12 2012-09-06 Toshiba Corp Thorium tungsten alloy, thorium tungsten wire, thorium tungsten wire coil and cathode structure for electron tube

Families Citing this family (7)

* 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 (en) * 1983-03-14 1984-06-20 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Electrode, especially for TIG welding processes
US5590386A (en) * 1995-07-26 1996-12-31 Osram Sylvania Inc. Method of making an alloy of tungsten and lanthana
JP3640947B2 (en) * 2002-10-07 2005-04-20 株式会社東芝 Ion source, ion implantation apparatus, and method for manufacturing semiconductor device
JPWO2005073418A1 (en) * 2004-01-30 2007-09-13 日本タングステン株式会社 Tungsten-based sintered body and manufacturing method thereof
US7648933B2 (en) 2006-01-13 2010-01-19 Dynamic Abrasives Llc Composition comprising spinel crystals, glass, and calcium iron silicate

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 (en) * 1963-11-20 1968-04-10 Egyesuelt Izzolampa Process for the production of metal bodies containing at least one additive and obtained by powder metallurgy
US3475159A (en) * 1967-01-16 1969-10-28 Dow Chemical Co Method for preparing tungsten powders doped with refractory metal oxides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002226935A (en) * 2001-02-02 2002-08-14 Toshiba Corp Thorium-tungsten alloy, thorium-tungsten wire, method for manufacturing the same, thorium-tungsten wire coil, and cathode structure for electron tube
JP2012167376A (en) * 2012-04-12 2012-09-06 Toshiba Corp Thorium tungsten alloy, thorium tungsten wire, thorium tungsten wire coil and cathode structure for electron tube

Also Published As

Publication number Publication date
GB1451234A (en) 1976-09-29
FR2197994A1 (en) 1974-03-29
DE2343278B2 (en) 1978-07-20
BR7306820D0 (en) 1974-06-27
NL7312096A (en) 1974-03-05
DE2343278A1 (en) 1974-03-21
JPS559941B2 (en) 1980-03-13
FR2197994B1 (en) 1976-05-07
BE804110A (en) 1973-12-17
US3853491A (en) 1974-12-10
DE2343278C3 (en) 1979-03-08

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