GB1225093A - - Google Patents

Info

Publication number
GB1225093A
GB1225093A GB1225093DA GB1225093A GB 1225093 A GB1225093 A GB 1225093A GB 1225093D A GB1225093D A GB 1225093DA GB 1225093 A GB1225093 A GB 1225093A
Authority
GB
United Kingdom
Prior art keywords
substrate
hydrogen
atmosphere
per cent
dew
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
Other languages
English (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 GB1225093A publication Critical patent/GB1225093A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Chemical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
GB1225093D 1968-03-22 1969-02-11 Expired GB1225093A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71520168A 1968-03-22 1968-03-22

Publications (1)

Publication Number Publication Date
GB1225093A true GB1225093A (id) 1971-03-17

Family

ID=24873049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225093D Expired GB1225093A (id) 1968-03-22 1969-02-11

Country Status (7)

Country Link
US (1) US3536526A (id)
BE (1) BE728184A (id)
DE (1) DE1913717C3 (id)
ES (1) ES364973A1 (id)
FR (1) FR2004493A1 (id)
GB (1) GB1225093A (id)
NL (1) NL152398B (id)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2018017A (en) * 1978-03-31 1979-10-10 Hitachi Ltd Cathode base alloy materials
GB2116773A (en) * 1982-03-10 1983-09-28 Hitachi Ltd Cathode electrode assembly of an electron tube

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382980A (en) * 1979-03-07 1983-05-10 E. I. Du Pont De Nemours And Company Magnesium compositions and process for forming MGO film
US4459322A (en) * 1981-12-28 1984-07-10 North American Philips Consumer Electronics Corp. Method for producing cathode structure for cathode ray tubes utilizing urea-containing slurry
US4836816A (en) * 1988-05-06 1989-06-06 Gte Products Corporation Method of treating tungsten cathodes
US5277637A (en) * 1989-04-03 1994-01-11 U.S. Philips Corporation Cathode for an electric discharge tube
US6660074B1 (en) 2000-11-16 2003-12-09 Egl Company, Inc. Electrodes for gas discharge lamps; emission coatings therefore; and methods of making the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215557A (en) * 1962-08-29 1965-11-02 Bell Telephone Labor Inc Zirconium-niobium-nickel cathodes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2018017A (en) * 1978-03-31 1979-10-10 Hitachi Ltd Cathode base alloy materials
GB2116773A (en) * 1982-03-10 1983-09-28 Hitachi Ltd Cathode electrode assembly of an electron tube

Also Published As

Publication number Publication date
ES364973A1 (es) 1971-02-16
US3536526A (en) 1970-10-27
NL152398B (nl) 1977-02-15
NL6904387A (id) 1969-09-24
BE728184A (id) 1969-07-16
DE1913717C3 (de) 1980-04-30
DE1913717A1 (de) 1969-10-09
DE1913717B2 (de) 1975-06-19
FR2004493A1 (id) 1969-11-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee