ES8401675A1 - Un metodo de fabricacion de un catodo emisor boruzado. - Google Patents

Un metodo de fabricacion de un catodo emisor boruzado.

Info

Publication number
ES8401675A1
ES8401675A1 ES520265A ES520265A ES8401675A1 ES 8401675 A1 ES8401675 A1 ES 8401675A1 ES 520265 A ES520265 A ES 520265A ES 520265 A ES520265 A ES 520265A ES 8401675 A1 ES8401675 A1 ES 8401675A1
Authority
ES
Spain
Prior art keywords
cathode
borided
base material
metallic base
making
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
ES520265A
Other languages
English (en)
Other versions
ES520265A0 (es
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
Publication of ES520265A0 publication Critical patent/ES520265A0/es
Publication of ES8401675A1 publication Critical patent/ES8401675A1/es
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
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • 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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microwave Tubes (AREA)
  • Solid Thermionic Cathode (AREA)
  • Chemical Vapour Deposition (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Lasers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

METODO DE FABRICACION DE UN CATODO EMISOR BORURADO. CONSISTE EN UN MATERIAL BASE QUE FUNDE A TEMPERATURA ELEVADA Y EN EL QUE ESTA PRESENTE UN MATERIAL EMISIVO EN FORMA DE OXIDO METALICO, EL CUAL SE REDUCE CONTINUAMENTE DURANTE EL FUNCIONAMIENTO DEL CATODO Y EL METAL SE DIFUNDE A LA SUPERFICIE EN FORMA ATOMICA Y FORMA ALLI UNA PELI CULA MONOATOMICA. SE EMPLEA DIBORANO (B2H6) COMO COMPUESTO GASEOSO DE BORO. COMPRENDE LAS SIGUIENTES FASES: A) LIMPIAR EL CATODO POR RECOCIDO EN UNA ATMOSFERA QUE CONTIENE HIDROGENO; B) CALENTAR EL CATODO EN UNA ATMOSFERADE GAS QUE CONTIENE UN COMPUESTO DE BORO GASEOSO (B2H6) HASTA QUE SE DEPOSITE BORO EN EL CATODO; C) CALENTAR EL CATODO BAJO VACIO O EN UNA ATMOSFERA NO REACTIVA HASTA LA TEMPERATURA DE FUNCIONAMIENTO DEL CATODO (600-700JC) Y MANTENER DICHA TEMPERATURA DURANTE UN TIEMPO TAL (C5 MINUTOS) QUE SE FORME UN BORURO DEL MATERIAL BASICO.
ES520265A 1982-03-05 1983-03-03 Un metodo de fabricacion de un catodo emisor boruzado. Expired ES8401675A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8200903A NL8200903A (nl) 1982-03-05 1982-03-05 Werkwijze voor het boreren van een naleveringskathode.

Publications (2)

Publication Number Publication Date
ES520265A0 ES520265A0 (es) 1983-12-01
ES8401675A1 true ES8401675A1 (es) 1983-12-01

Family

ID=19839374

Family Applications (1)

Application Number Title Priority Date Filing Date
ES520265A Expired ES8401675A1 (es) 1982-03-05 1983-03-03 Un metodo de fabricacion de un catodo emisor boruzado.

Country Status (11)

Country Link
US (1) US4530669A (es)
JP (1) JPS58164129A (es)
KR (1) KR900006166B1 (es)
CA (1) CA1212889A (es)
DE (1) DE3305426A1 (es)
ES (1) ES8401675A1 (es)
FR (1) FR2522877B1 (es)
GB (1) GB2116360B (es)
IT (1) IT1170116B (es)
NL (1) NL8200903A (es)
SE (1) SE454925B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810532A (en) * 1985-06-24 1989-03-07 Lockheed Missiles & Space Company, Inc. Boron-silicon-hydrogen alloy films
DE4026300A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre
DE4026299A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Roentgenanordnung mit einem roentgenstrahler
DE4026297A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Roentgenanordnung
DE4026298A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Roentgenroehre mit einem elektronenemitter
DE4305558A1 (de) * 1993-02-24 1994-08-25 Asea Brown Boveri Verfahren zur Herstellung von Drähten, welche insbesondere für Kathoden von Elektronenröhren geeignet sind
US6452338B1 (en) 1999-12-13 2002-09-17 Semequip, Inc. Electron beam ion source with integral low-temperature vaporizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909680A (en) * 1930-06-30 1933-05-16 Fansteel Prod Co Inc Electrode and method of making the same
US2107945A (en) * 1934-11-20 1938-02-08 Gen Electric Cathode structure
US2307005A (en) * 1940-06-21 1942-12-29 Ruben Samuel Method of treating metal composition
US2494267A (en) * 1946-11-26 1950-01-10 Hermann I Schlesinger Surface hardening of ferrous metals
BE515835A (es) * 1951-11-29
US3016472A (en) * 1960-05-25 1962-01-09 Gen Electric Dispenser cathode
FR1594282A (es) * 1968-12-10 1970-06-01
GB2060991A (en) * 1979-09-20 1981-05-07 Matsushita Electric Ind Co Ltd Oxide-coated cathode and method of producing the same

Also Published As

Publication number Publication date
GB2116360B (en) 1986-09-03
IT8319853A0 (it) 1983-03-02
ES520265A0 (es) 1983-12-01
GB2116360A (en) 1983-09-21
SE8301150L (sv) 1983-09-06
KR900006166B1 (ko) 1990-08-24
DE3305426A1 (de) 1983-09-08
FR2522877A1 (fr) 1983-09-09
JPS58164129A (ja) 1983-09-29
NL8200903A (nl) 1983-10-03
KR840004299A (ko) 1984-10-10
FR2522877B1 (fr) 1987-03-20
SE454925B (sv) 1988-06-06
IT8319853A1 (it) 1984-09-02
US4530669A (en) 1985-07-23
DE3305426C2 (es) 1991-09-12
JPH0439171B2 (es) 1992-06-26
IT1170116B (it) 1987-06-03
GB8305747D0 (en) 1983-04-07
SE8301150D0 (sv) 1983-03-02
CA1212889A (en) 1986-10-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970519