FR2625364B1 - Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede - Google Patents

Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede

Info

Publication number
FR2625364B1
FR2625364B1 FR8718016A FR8718016A FR2625364B1 FR 2625364 B1 FR2625364 B1 FR 2625364B1 FR 8718016 A FR8718016 A FR 8718016A FR 8718016 A FR8718016 A FR 8718016A FR 2625364 B1 FR2625364 B1 FR 2625364B1
Authority
FR
France
Prior art keywords
cathode
manufacturing
impregnated
impregnated cathode
cathode obtained
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 - Lifetime
Application number
FR8718016A
Other languages
English (en)
Other versions
FR2625364A1 (fr
Inventor
Arving Shroff
Serge Vilminot
Dominique Brion
Bernard Carriere
Vero
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8718016A priority Critical patent/FR2625364B1/fr
Priority to EP88403250A priority patent/EP0322304A1/fr
Priority to US07/287,328 priority patent/US4910079A/en
Priority to JP63325697A priority patent/JPH01204329A/ja
Publication of FR2625364A1 publication Critical patent/FR2625364A1/fr
Application granted granted Critical
Publication of FR2625364B1 publication Critical patent/FR2625364B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249955—Void-containing component partially impregnated with adjacent component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249955—Void-containing component partially impregnated with adjacent component
    • Y10T428/249956—Void-containing component is inorganic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249955—Void-containing component partially impregnated with adjacent component
    • Y10T428/249956—Void-containing component is inorganic
    • Y10T428/249957—Inorganic impregnant

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Solid Thermionic Cathode (AREA)
FR8718016A 1987-12-23 1987-12-23 Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede Expired - Lifetime FR2625364B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8718016A FR2625364B1 (fr) 1987-12-23 1987-12-23 Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede
EP88403250A EP0322304A1 (fr) 1987-12-23 1988-12-20 Procédé de fabrication d'une cathode imprégnée, et cathode obtenue par ce procédé
US07/287,328 US4910079A (en) 1987-12-23 1988-12-21 Method for the fabrication of an impregnated cathode and cathode obtained thereby
JP63325697A JPH01204329A (ja) 1987-12-23 1988-12-23 含浸陰極及びその製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8718016A FR2625364B1 (fr) 1987-12-23 1987-12-23 Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede

Publications (2)

Publication Number Publication Date
FR2625364A1 FR2625364A1 (fr) 1989-06-30
FR2625364B1 true FR2625364B1 (fr) 1990-05-04

Family

ID=9358218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8718016A Expired - Lifetime FR2625364B1 (fr) 1987-12-23 1987-12-23 Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede

Country Status (4)

Country Link
US (1) US4910079A (fr)
EP (1) EP0322304A1 (fr)
JP (1) JPH01204329A (fr)
FR (1) FR2625364B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957463A (en) * 1990-01-02 1990-09-18 The United States Of America As Represented By The Secretary Of The Army Method of making a long life high current density cathode from tungsten and iridium powders using a quaternary compound as the impregnant
DE4408941A1 (de) * 1994-03-16 1995-09-21 Licentia Gmbh Vorratskathode
US5702761A (en) * 1994-04-29 1997-12-30 Mcdonnell Douglas Corporation Surface protection of porous ceramic bodies
FR2801135B1 (fr) * 1999-11-12 2002-02-08 Univ Claude Bernard Lyon Procede de realisation d'une cathode d'emission a l'aide de la technique sol-gel et cathode obtenue par un tel procede
KR20020063396A (ko) * 2001-01-29 2002-08-03 삼성에스디아이 주식회사 전자관용 금속 음극
CN100433230C (zh) * 2006-07-19 2008-11-12 北京工业大学 压制型含钪扩散阴极的制备方法
KR100924287B1 (ko) * 2007-05-10 2009-10-30 한국과학기술연구원 양광주가 존재하지 않는 직류 전원 플라스마 증착 장치와,양광주를 배제한 상태에서의 물질 증착 방법 및 이에 의해제조된 다이아몬드 박막

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458913A (en) * 1966-04-19 1969-08-05 Siemens Ag Supply cathode for electrical discharge vessels and method for its production
JPS60159185A (ja) * 1984-01-31 1985-08-20 Permelec Electrode Ltd 電極の製造方法
US4836816A (en) * 1988-05-06 1989-06-06 Gte Products Corporation Method of treating tungsten cathodes

Also Published As

Publication number Publication date
EP0322304A1 (fr) 1989-06-28
FR2625364A1 (fr) 1989-06-30
JPH01204329A (ja) 1989-08-16
US4910079A (en) 1990-03-20

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Legal Events

Date Code Title Description
ST Notification of lapse