GB1232523A - - Google Patents

Info

Publication number
GB1232523A
GB1232523A GB1232523DA GB1232523A GB 1232523 A GB1232523 A GB 1232523A GB 1232523D A GB1232523D A GB 1232523DA GB 1232523 A GB1232523 A GB 1232523A
Authority
GB
United Kingdom
Prior art keywords
mol
per cent
lab
july
earth metal
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 GB1232523A publication Critical patent/GB1232523A/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
    • 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
    • H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
GB1232523D 1968-07-16 1969-07-16 Expired GB1232523A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG1032768 1968-07-16

Publications (1)

Publication Number Publication Date
GB1232523A true GB1232523A (enrdf_load_stackoverflow) 1971-05-19

Family

ID=3897315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232523D Expired GB1232523A (enrdf_load_stackoverflow) 1968-07-16 1969-07-16

Country Status (1)

Country Link
GB (1) GB1232523A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5051660A (enrdf_load_stackoverflow) * 1973-09-07 1975-05-08
JPS5074965A (enrdf_load_stackoverflow) * 1973-11-02 1975-06-19
JPS50118658A (enrdf_load_stackoverflow) * 1974-03-01 1975-09-17
US3932314A (en) * 1973-09-05 1976-01-13 Hitachi, Ltd. Hexaboride electron emissive material
US4200555A (en) 1978-07-27 1980-04-29 Bell Telephone Laboratories, Incorporated Low work function hexaboride electron source

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932314A (en) * 1973-09-05 1976-01-13 Hitachi, Ltd. Hexaboride electron emissive material
JPS5051660A (enrdf_load_stackoverflow) * 1973-09-07 1975-05-08
JPS5074965A (enrdf_load_stackoverflow) * 1973-11-02 1975-06-19
JPS50118658A (enrdf_load_stackoverflow) * 1974-03-01 1975-09-17
US4200555A (en) 1978-07-27 1980-04-29 Bell Telephone Laboratories, Incorporated Low work function hexaboride electron source

Similar Documents

Publication Publication Date Title
GB1225220A (enrdf_load_stackoverflow)
GB734311A (en) Improvements in or relating to cathodes for use in electric discharge tubes, tubes comprising such cathodes and methods of manufacturing such cathodes
GB751507A (en) "improvements in or relating to cathode bodies"
GB1232523A (enrdf_load_stackoverflow)
GB1512978A (en) Substituted zirconium pyrophosphate phosphors
GB1289659A (enrdf_load_stackoverflow)
Abboud et al. Biosynthesis of 5-aminolevulinic acid: involvement of a retention–inversion mechanism
GB1251824A (enrdf_load_stackoverflow)
GB1347171A (en) Methylation of phenols at the ortho-position
GB1172135A (en) Process for Cleaning Metals
GB1324872A (en) Electromechanical resonator
GB965044A (en) Image intensifier array
GB1345392A (en) Piezo-electric compositions of matter
GB1431103A (en) Ceramic compositions
GB1516689A (en) Manufacture of boron nitride
GB1510076A (en) Screen printing of fuel cell electrolyte-retaining matrices
FR2019682A1 (enrdf_load_stackoverflow)
GB1460401A (en) Cathode oxide coating composition
AU2982571A (en) Mixed oxide material
GB1355779A (en) Lithium titanium bismuth cobalt ferrites
GB1312140A (en) Oxide piezoelectric material
GB800919A (en) Improvements in or relating to oxide-coated cathodes for thermionic tubes
GB1491544A (en) Hafnium pyrophosphate phosphors and methods of preparatio
SU575710A1 (ru) Материал дл термоэлектронного катода
GB1141858A (en) Improvements in and relating to piezoelectric materials

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees