GB923113A - Improvements in or relating to oxide cathodes - Google Patents

Improvements in or relating to oxide cathodes

Info

Publication number
GB923113A
GB923113A GB2690460A GB2690460A GB923113A GB 923113 A GB923113 A GB 923113A GB 2690460 A GB2690460 A GB 2690460A GB 2690460 A GB2690460 A GB 2690460A GB 923113 A GB923113 A GB 923113A
Authority
GB
United Kingdom
Prior art keywords
carbonate
cathode
aug
layer
relating
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
GB2690460A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB923113A publication Critical patent/GB923113A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

923,113. Cathode materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1960 [Aug. 6, 1959], No. 26904/60. Class 39 (1). In manufacture of an oxide cathode, a layer of alkaline-earth carbonate including 0.5 to 3% by weight of silver carbonate is provided on a carrier consisting substantially of nickel. For example, a layer of barium-strontium carbonate (55% Ba-45% Sr) with which 1% of silver carbonate has been co-precipitated may be sprayed on to a nickel base to produce a cathode for use in a television display tube, and providing continuous current densities of 1 amp./cm.<SP>2</SP> for more than 1000 hours.
GB2690460A 1959-08-06 1960-08-03 Improvements in or relating to oxide cathodes Expired GB923113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL242087 1959-08-06

Publications (1)

Publication Number Publication Date
GB923113A true GB923113A (en) 1963-04-10

Family

ID=19751862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2690460A Expired GB923113A (en) 1959-08-06 1960-08-03 Improvements in or relating to oxide cathodes

Country Status (1)

Country Link
GB (1) GB923113A (en)

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