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GB2012103B - Oxide cathode - Google Patents

Oxide cathode

Info

Publication number
GB2012103B
GB2012103B GB7844332A GB7844332A GB2012103B GB 2012103 B GB2012103 B GB 2012103B GB 7844332 A GB7844332 A GB 7844332A GB 7844332 A GB7844332 A GB 7844332A GB 2012103 B GB2012103 B GB 2012103B
Authority
GB
United Kingdom
Prior art keywords
oxide cathode
cathode
oxide
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
Application number
GB7844332A
Other versions
GB2012103A (en
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB7844332A priority Critical patent/GB2012103B/en
Priority to CA000317186A priority patent/CA1139827A/en
Priority to IT3047878A priority patent/IT1101677B/en
Priority to JP14959278A priority patent/JPS54100249A/en
Priority to DE19782852356 priority patent/DE2852356C2/en
Priority to FR7834363A priority patent/FR2411483A1/en
Publication of GB2012103A publication Critical patent/GB2012103A/en
Application granted granted Critical
Publication of GB2012103B publication Critical patent/GB2012103B/en
Expired legal-status Critical Current

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
    • C22C1/0433—Nickel- or cobalt-based alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
GB7844332A 1977-12-06 1978-11-14 Oxide cathode Expired GB2012103B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB7844332A GB2012103B (en) 1977-12-06 1978-11-14 Oxide cathode
CA000317186A CA1139827A (en) 1977-12-06 1978-11-30 Oxide cathode and method of manufacturing powder metallurgical nickel for such a cathode
IT3047878A IT1101677B (en) 1977-12-06 1978-12-01 OXIDE CATHODE AND METALLURGIC NICKEL PRODUCTION METHOD IN POWDER FOR SUCH CATHODE
JP14959278A JPS54100249A (en) 1977-12-06 1978-12-02 Oxide cathode and method of producing same
DE19782852356 DE2852356C2 (en) 1977-12-06 1978-12-04 Oxide cathode, use of this oxide cathode and method for producing a cathode support for such an oxide cathode
FR7834363A FR2411483A1 (en) 1977-12-06 1978-12-06 Oxide cathode with powder metallurgical nickel support - contg. reducing agent in inlets on surface is resistant to poisoning (BE 5.6.79)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5072377 1977-12-06
GB7844332A GB2012103B (en) 1977-12-06 1978-11-14 Oxide cathode

Publications (2)

Publication Number Publication Date
GB2012103A GB2012103A (en) 1979-07-18
GB2012103B true GB2012103B (en) 1982-05-12

Family

ID=26266723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7844332A Expired GB2012103B (en) 1977-12-06 1978-11-14 Oxide cathode

Country Status (1)

Country Link
GB (1) GB2012103B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910002969B1 (en) * 1987-06-12 1991-05-11 미쓰비시전기주식회사 Electron tube cathode
FR2808377A1 (en) * 2000-04-26 2001-11-02 Thomson Tubes & Displays OXIDE CATHODE FOR CATHODE RAY TUBE

Also Published As

Publication number Publication date
GB2012103A (en) 1979-07-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee