NL8902793A - Scandaatkathode. - Google Patents

Scandaatkathode. Download PDF

Info

Publication number
NL8902793A
NL8902793A NL8902793A NL8902793A NL8902793A NL 8902793 A NL8902793 A NL 8902793A NL 8902793 A NL8902793 A NL 8902793A NL 8902793 A NL8902793 A NL 8902793A NL 8902793 A NL8902793 A NL 8902793A
Authority
NL
Netherlands
Prior art keywords
scandium
cathode
powder
scandate
cathode according
Prior art date
Application number
NL8902793A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Priority to NL8902793A priority Critical patent/NL8902793A/nl
Priority to US07/606,020 priority patent/US5264757A/en
Priority to EP90202933A priority patent/EP0428206B1/fr
Priority to DE69026032T priority patent/DE69026032T2/de
Priority to KR1019900018026A priority patent/KR100189035B1/ko
Priority to CN90109140A priority patent/CN1036165C/zh
Priority to JP2304213A priority patent/JPH03173034A/ja
Publication of NL8902793A publication Critical patent/NL8902793A/nl
Priority to US07/931,238 priority patent/US5314364A/en

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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)
NL8902793A 1989-11-13 1989-11-13 Scandaatkathode. NL8902793A (nl)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL8902793A NL8902793A (nl) 1989-11-13 1989-11-13 Scandaatkathode.
US07/606,020 US5264757A (en) 1989-11-13 1990-10-30 Scandate cathode and methods of making it
EP90202933A EP0428206B1 (fr) 1989-11-13 1990-11-07 Cathode à scandate
DE69026032T DE69026032T2 (de) 1989-11-13 1990-11-07 Scandatkathode
KR1019900018026A KR100189035B1 (ko) 1989-11-13 1990-11-08 스캔데이트 음극
CN90109140A CN1036165C (zh) 1989-11-13 1990-11-10 钪酸盐阴极
JP2304213A JPH03173034A (ja) 1989-11-13 1990-11-13 スカンダート陰極およびその製造方法
US07/931,238 US5314364A (en) 1989-11-13 1992-08-17 Scandate cathode and methods of making it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8902793A NL8902793A (nl) 1989-11-13 1989-11-13 Scandaatkathode.
NL8902793 1989-11-13

Publications (1)

Publication Number Publication Date
NL8902793A true NL8902793A (nl) 1991-06-03

Family

ID=19855607

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8902793A NL8902793A (nl) 1989-11-13 1989-11-13 Scandaatkathode.

Country Status (7)

Country Link
US (2) US5264757A (fr)
EP (1) EP0428206B1 (fr)
JP (1) JPH03173034A (fr)
KR (1) KR100189035B1 (fr)
CN (1) CN1036165C (fr)
DE (1) DE69026032T2 (fr)
NL (1) NL8902793A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658360B1 (fr) * 1990-02-09 1996-08-14 Thomson Tubes Electroniques Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede.
DE4207220A1 (de) * 1992-03-07 1993-09-09 Philips Patentverwaltung Festkoerperelement fuer eine thermionische kathode
US5407633A (en) * 1994-03-15 1995-04-18 U.S. Philips Corporation Method of manufacturing a dispenser cathode
US6034469A (en) * 1995-06-09 2000-03-07 Kabushiki Kaisha Toshiba Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assembly
KR100386303B1 (ko) * 2000-07-14 2003-06-02 주식회사 한국오존텍 오존 및 자외선 발생 장치
ITMI20012273A1 (it) * 2001-10-29 2003-04-29 Getters Spa Leghe e dispositivi getter per l'evaporazione del calcio
WO2004072732A2 (fr) 2003-02-14 2004-08-26 Mapper Lithography Ip B.V. Cathode de distribution
US7153586B2 (en) * 2003-08-01 2006-12-26 Vapor Technologies, Inc. Article with scandium compound decorative coating
US20070026205A1 (en) 2005-08-01 2007-02-01 Vapor Technologies Inc. Article having patterned decorative coating
EP2739762A1 (fr) * 2011-08-03 2014-06-11 Koninklijke Philips N.V. Cible pour une cathode à diffusion riche en barium et en scandate

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358178A (en) * 1964-08-05 1967-12-12 Figner Avraam Iljich Metal-porous body having pores filled with barium scandate
NL165880C (nl) * 1975-02-21 1981-05-15 Philips Nv Naleveringskathode.
NL7905542A (nl) * 1979-07-17 1981-01-20 Philips Nv Naleveringskathode.
JPS58154131A (ja) * 1982-03-10 1983-09-13 Hitachi Ltd 含浸形陰極
NL8201371A (nl) * 1982-04-01 1983-11-01 Philips Nv Werkwijzen voor het vervaardigen van een naleveringskathode en naleveringskathode vervaardigd volgens deze werkwijzen.
JPH0719530B2 (ja) * 1984-06-29 1995-03-06 株式会社日立製作所 陰極線管
NL8403032A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode, naleveringskathode vervaardigd met deze werkwijze.
NL8403031A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode en scandaatnaleveringskathode vervaardigd volgens deze werkwijze.
CA1270890A (fr) * 1985-07-19 1990-06-26 Keiji Watanabe Cathode de tube electronique
KR900009071B1 (ko) * 1986-05-28 1990-12-20 가부시기가이샤 히다찌세이사구쇼 함침형 음극
JPS63224127A (ja) * 1987-03-11 1988-09-19 Hitachi Ltd 含浸形陰極
NL8701583A (nl) * 1987-07-06 1989-02-01 Philips Nv Scandaatkathode.
NL8702727A (nl) * 1987-11-16 1989-06-16 Philips Nv Scandaatkathode.
NL8900765A (nl) * 1989-03-29 1990-10-16 Philips Nv Scandaatkathode.
US5114742A (en) * 1991-07-17 1992-05-19 The United States Of America As Represented By The Secretary Of The Army Preparing a scandate cathode by impregnating a porous tungsten billet with Ba3 Al2 O6, coating the top surface with a mixture of Sc6 WO12, Sc2 (WO4)3, and W in a 1:3:2 mole ratio, and heating in a vacuum

Also Published As

Publication number Publication date
US5264757A (en) 1993-11-23
CN1051820A (zh) 1991-05-29
DE69026032D1 (de) 1996-04-25
KR100189035B1 (ko) 1999-06-01
JPH03173034A (ja) 1991-07-26
EP0428206B1 (fr) 1996-03-20
EP0428206A1 (fr) 1991-05-22
CN1036165C (zh) 1997-10-15
KR910010579A (ko) 1991-06-29
DE69026032T2 (de) 1996-10-02
US5314364A (en) 1994-05-24

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