KR880013210A - 축전캐소드 제조방법 - Google Patents

축전캐소드 제조방법 Download PDF

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Publication number
KR880013210A
KR880013210A KR1019880004520A KR880004520A KR880013210A KR 880013210 A KR880013210 A KR 880013210A KR 1019880004520 A KR1019880004520 A KR 1019880004520A KR 880004520 A KR880004520 A KR 880004520A KR 880013210 A KR880013210 A KR 880013210A
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KR
South Korea
Prior art keywords
powder particles
manufacturing
sintered
metal layer
cathode according
Prior art date
Application number
KR1019880004520A
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English (en)
Inventor
프란시스 코르넬리스 마리아 비예넨 얀
Original Assignee
이반 밀러 레르너
엔.브이.필립스.글로아이람펜파브리켄
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 이반 밀러 레르너, 엔.브이.필립스.글로아이람펜파브리켄 filed Critical 이반 밀러 레르너
Publication of KR880013210A publication Critical patent/KR880013210A/ko

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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
    • 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
    • H01J9/047—Cathodes having impregnated bodies

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

내용 없음

Description

축전캐소드 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명의 제조방법에 따라 제조된 축전캐소드의 단부도, 제 2 도는 본 발명 제조방법을 도시하는 증기용착배열이 단면도.

Claims (8)

  1. 내화금속의 비연동 분말입자가 보디로 압분되고 그 보디가 소결되는 내화금속의 다공질 및 소결체를 포함하며, 압분전에 분말입자 부분이 연성금속의 박판층으로 피막되고 압분이 600°C이하에서 수행되는 것을 특징으로 하는 축전캐소드 제조방법.
  2. 제 1 항에 있어서, 압분이 주위온도와 같은 온도에서 수행되는 것을 특징으로 하는 축전캐소드 제조방법.
  3. 제 1 항 또는 제 2 항에 있어서, 모든 분말입자가 연성금속층을 구비하고 있는 것을 특징으로 하는 축전캐소드 제조방법.
  4. 상기 항중의 어느 한 항에 있어서, 분말입자가 구형인 것을 특징으로 하는 축전캐소드 제조방법.
  5. 상기 항중의 어느 한 항에 있어서, 내화금속이 텅스텐인 것을 특징으로 하는 축전캐소드 제조방법.
  6. 상기 항중의 어느 한 항에 있어서, 분말입자가 알루미늄을 다량 함유한 연성금속층으로 피막된 것을 특징으로 하는 축전캐소드 제조방법.
  7. 상기 항중의 어느 한 항에 있어서, 층의 평균두께가 0.1미크론 이하, 분말입자 반지름의 1/10이하, 그리고 0.05미크론보다 큰것을 특징으로 하는 축전캐소드 제조방법.
  8. 제 7 항에 있어서, 연속금속층의 평균두께가 0.01 내지 0.03미크론의 범위에 있는 것을 특징으로 하는 축전캐소드 제조방법.
    ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.
KR1019880004520A 1987-04-21 1988-04-21 축전캐소드 제조방법 KR880013210A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700935 1987-04-21
NL8700935A NL8700935A (nl) 1987-04-21 1987-04-21 Geimpregneerde kathodes met een gekontroleerde porositeit.

Publications (1)

Publication Number Publication Date
KR880013210A true KR880013210A (ko) 1988-11-30

Family

ID=19849889

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880004520A KR880013210A (ko) 1987-04-21 1988-04-21 축전캐소드 제조방법

Country Status (6)

Country Link
US (1) US5118317A (ko)
EP (1) EP0288118B1 (ko)
JP (1) JPS63281331A (ko)
KR (1) KR880013210A (ko)
DE (1) DE3866931D1 (ko)
NL (1) NL8700935A (ko)

Families Citing this family (10)

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US5041757A (en) * 1990-12-21 1991-08-20 Hughes Aircraft Company Sputtered scandate coatings for dispenser cathodes and methods for making same
US6042781A (en) * 1991-12-04 2000-03-28 Materials Innovation, Inc. Ambient temperature method for increasing the green strength of parts
US5318746A (en) * 1991-12-04 1994-06-07 The United States Of America As Represented By The Secretary Of Commerce Process for forming alloys in situ in absence of liquid-phase sintering
US6001289A (en) * 1991-12-04 1999-12-14 Materials Innovation, Inc. Acid assisted cold welding and intermetallic formation
US5368275A (en) * 1992-02-11 1994-11-29 Bundy Corporation Fluid line adapter
KR950006088B1 (ko) * 1992-06-27 1995-06-08 주식회사엘지전자 함침형 음극 구조체의 함침 펠렛트 및 그 제조방법
DE19652822A1 (de) 1996-12-18 1998-06-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Sinterelektrode
KR20010045796A (ko) * 1999-11-08 2001-06-05 구자홍 음극선관용 음극의 제조방법
US6905581B2 (en) * 2002-10-31 2005-06-14 Carleton Life Support Systems, Inc. Oxygen permeable electrode system
US7545089B1 (en) 2005-03-21 2009-06-09 Calabazas Creek Research, Inc. Sintered wire cathode

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US927935A (en) * 1907-10-22 1909-07-13 Siemens Ag Method of manufacturing filaments for electric lamps.
US2370242A (en) * 1943-01-15 1945-02-27 Mallory & Co Inc P R Refractory metal composition
DE1059114B (de) * 1955-02-02 1959-06-11 Western Electric Co Kathode fuer Hochleistungs-Magnetrons und Verfahren fuer ihre Herstellung
US2986465A (en) * 1958-11-12 1961-05-30 Kurtz Jacob Method of making compact high density radiation screening material containing tungsten
US3155864A (en) * 1960-03-21 1964-11-03 Gen Electric Dispenser cathode
US3418103A (en) * 1964-12-11 1968-12-24 Mallory & Co Inc P R Process for making tungsten and molybdenum alloys
US3303559A (en) * 1965-05-12 1967-02-14 Rametco Inc Electrical discharge machine electrodes
DE1764260A1 (de) * 1968-05-04 1971-07-01 Telefunken Patent Verfahren zum Herstellen einer Vorratskathode
US3577227A (en) * 1968-10-04 1971-05-04 Us Navy Tungsten materials and a method for providing such materials
US3971110A (en) * 1975-09-11 1976-07-27 The United States Of America As Represented By The Secretary Of The Navy Method for fabricating an electron-emission cathode
JPS55122806A (en) * 1979-03-12 1980-09-20 Hitachi Ltd Production of porous high melting point metal member
DE3226648C2 (de) * 1982-07-16 1984-12-06 Dornier System Gmbh, 7990 Friedrichshafen Heterogenes Wolfram-Legierungspulver
JPS6065424A (ja) * 1983-09-20 1985-04-15 Nippon Telegr & Teleph Corp <Ntt> 電子エミツタ−とその製造方法および該電子エミツタ−の活性化法
NL8501257A (nl) * 1985-05-03 1986-12-01 Philips Nv Werkwijze voor het vervaardigen van een naleveringskathode en toepassing van de werkwijze.
US4708681A (en) * 1987-03-06 1987-11-24 The United States Of America As Represented By The Secretary Of The Army Method of making a long lived high current density cathode from tungsten and iridium powders

Also Published As

Publication number Publication date
NL8700935A (nl) 1988-11-16
US5118317A (en) 1992-06-02
EP0288118A1 (en) 1988-10-26
EP0288118B1 (en) 1991-12-18
DE3866931D1 (de) 1992-01-30
JPS63281331A (ja) 1988-11-17

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