ES8608731A1 - Un procedimiento para producir un catodo de oxido - Google Patents

Un procedimiento para producir un catodo de oxido

Info

Publication number
ES8608731A1
ES8608731A1 ES538796A ES538796A ES8608731A1 ES 8608731 A1 ES8608731 A1 ES 8608731A1 ES 538796 A ES538796 A ES 538796A ES 538796 A ES538796 A ES 538796A ES 8608731 A1 ES8608731 A1 ES 8608731A1
Authority
ES
Spain
Prior art keywords
titanium
base
metal layer
oxide
bears
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
ES538796A
Other languages
English (en)
Other versions
ES538796A0 (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 ES538796A0 publication Critical patent/ES538796A0/es
Publication of ES8608731A1 publication Critical patent/ES8608731A1/es
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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Physical Vapour Deposition (AREA)
  • Resistance Heating (AREA)

Abstract

AISLAMIENTO ENTRE UN CATODO Y SU ELEMENTO CALEFACTOR. COMPRENDE: A) FORMAR UNA BASE (1) DE CATODO DE TITANIO; AJUSTAR EN DICHA BASE, PARA CALENTARLA, UN ELEMENTO DE CALEFACCION (5) RECUBIERTO DE OXIDO DE ALUMINIO (6); APLICAR SOBRE EL EXTERIOR (3) DE LA BASE (1) UNA CAPA (4) POROSA EMISORA DE UN OXIDO DE METAL ALCALINO-TERREO, DEPOSITANDOLA, CALCINANDOLA Y ACTIVANDO EN VACIO UN RECUBRIMIENTO QUE COMPRENDE EL CARBONATO CORRESPONDIENTE AL OXIDO DE METAL; Y D) APLICAR SOBRE LA SUPERFICIE DE LA BASE, OPUESTA AL ELEMENTO DE CALEFACCION, UNA CAPA (7) METALICA DE WOLFRAMIO PURO, POR DEPOSICION QUIMICA DE VAPOR, DE UN ESPESOR DE 1 A 10 MICROMETROS. SE UTILIZA PARA EVITAR EL CONTACTO ELECTRICO ENTRE LA BASE DE TITANIO Y EL ELEMENTO CALEFACTOR.
ES538796A 1983-12-22 1984-12-19 Un procedimiento para producir un catodo de oxido Expired ES8608731A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8304401A NL8304401A (nl) 1983-12-22 1983-12-22 Oxydkathode.

Publications (2)

Publication Number Publication Date
ES538796A0 ES538796A0 (es) 1986-06-16
ES8608731A1 true ES8608731A1 (es) 1986-06-16

Family

ID=19842909

Family Applications (1)

Application Number Title Priority Date Filing Date
ES538796A Expired ES8608731A1 (es) 1983-12-22 1984-12-19 Un procedimiento para producir un catodo de oxido

Country Status (9)

Country Link
US (1) US4904897A (es)
JP (1) JPS60154430A (es)
DD (1) DD228393A5 (es)
DE (1) DE3444333A1 (es)
ES (1) ES8608731A1 (es)
FR (1) FR2557356A1 (es)
GB (1) GB2151842B (es)
IT (1) IT1177459B (es)
NL (1) NL8304401A (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2032080C (en) * 1990-02-28 1996-07-23 John Charles Baumhauer Jr. Directional microphone assembly
US5208508A (en) * 1991-09-16 1993-05-04 Raytheon Company Cathode heater potting assembly
DE4414196C2 (de) * 1994-04-22 2001-05-17 Himolla Hierl Gmbh C Massagesessel
KR960025915A (ko) * 1994-12-28 1996-07-20 윤종용 열전자 방출성 산화물 음극 및 그 제조방법
TW430842B (en) * 1998-10-28 2001-04-21 Matsushita Electronics Corp Cathode structure for cathode ray tube
JP2017107816A (ja) * 2015-12-11 2017-06-15 株式会社堀場エステック 熱電子放出用フィラメント、四重極質量分析計、及び残留ガス分析方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726797C (de) * 1930-05-29 1942-10-21 Loewe Radio Ag Mittelbar geheizte Hochemissionskathode
NL153018B (nl) * 1967-02-17 1977-04-15 Philips Nv Indirect verhitte kathode.
US4009409A (en) * 1975-09-02 1977-02-22 Gte Sylvania Incorporated Fast warmup cathode and method of making same
US4371589A (en) * 1976-08-24 1983-02-01 Warner London Inc. Process for depositing protective coating and articles produced
FR2390825A1 (fr) * 1977-05-13 1978-12-08 Thomson Csf Cathode thermo-ionique a grille incorporee, son procede de fabrication et tube electronique comportant une telle cathode
NL8100928A (nl) * 1981-02-26 1982-09-16 Philips Nv Oxydkathode.
DE3148441A1 (de) * 1981-12-08 1983-07-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur herstellung einer thermionischen kathode

Also Published As

Publication number Publication date
GB2151842A (en) 1985-07-24
IT8424131A0 (it) 1984-12-19
GB2151842B (en) 1987-08-26
DE3444333A1 (de) 1985-07-04
IT1177459B (it) 1987-08-26
DD228393A5 (de) 1985-10-09
JPS60154430A (ja) 1985-08-14
US4904897A (en) 1990-02-27
GB8431843D0 (en) 1985-01-30
ES538796A0 (es) 1986-06-16
FR2557356A1 (fr) 1985-06-28
IT8424131A1 (it) 1986-06-19
NL8304401A (nl) 1985-07-16

Similar Documents

Publication Publication Date Title
US3155864A (en) Dispenser cathode
US2923866A (en) Electrolytic condenser
US3947333A (en) Novel cathode
US3558966A (en) Directly heated dispenser cathode
CA2037675A1 (en) Electron tube cathode
FI833054A0 (fi) Elektrokatalytisk elektrod
US1794810A (en) Incandescent cathode for electric discharge tubes
US4675570A (en) Tungsten-iridium impregnated cathode
ES8608731A1 (es) Un procedimiento para producir un catodo de oxido
ES8304219A1 (es) Metodo para recubrir de nuevos electrodos dimensionalmente estables.
JPS54140453A (en) Oxide cathode for electron tube
ES8700795A1 (es) Un metodo de fabricacion de un catodo compensado a base de escandato
US4024425A (en) Metal halide lamps
JPS5740228B2 (es)
CA2122525A1 (en) Electrical contact containing a braze diffusion barrier
US2236647A (en) Electronic tube
GB1525005A (en) Thermionic reaction cathode
US4000048A (en) Novel cathode
KR950003095B1 (ko) 산화물 음극을 가진 진공 전자관
JPS5426657A (en) Cathode ray tube
JPS56118243A (en) Cathode for dc type gas discharge indication panel and manufacture
GB1177302A (en) Improvements in or relating to Grid Electrodes
GB1170880A (en) Improvements in or relating to thorium-film thermionic cathodes for electrical discharge vessels.
US2792273A (en) Oxide coated nickel cathode and method of activation
US4311769A (en) Mercury contact