DE2909958C2 - - Google Patents

Info

Publication number
DE2909958C2
DE2909958C2 DE2909958A DE2909958A DE2909958C2 DE 2909958 C2 DE2909958 C2 DE 2909958C2 DE 2909958 A DE2909958 A DE 2909958A DE 2909958 A DE2909958 A DE 2909958A DE 2909958 C2 DE2909958 C2 DE 2909958C2
Authority
DE
Germany
Prior art keywords
tungsten powder
sintered body
powder particles
coated
noble metal
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
DE2909958A
Other languages
German (de)
English (en)
Other versions
DE2909958A1 (de
Inventor
Karl Schnur
Meinhard 7900 Ulm De Guettler
Ulrich 7913 Senden De Herrmann
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 Electron Devices GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19792909958 priority Critical patent/DE2909958A1/de
Publication of DE2909958A1 publication Critical patent/DE2909958A1/de
Application granted granted Critical
Publication of DE2909958C2 publication Critical patent/DE2909958C2/de
Granted 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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/09—Mixtures of metallic powders
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/17—Metallic particles coated with metal

Landscapes

  • Powder Metallurgy (AREA)
DE19792909958 1979-03-14 1979-03-14 Sinterwerkstoff Granted DE2909958A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792909958 DE2909958A1 (de) 1979-03-14 1979-03-14 Sinterwerkstoff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792909958 DE2909958A1 (de) 1979-03-14 1979-03-14 Sinterwerkstoff

Publications (2)

Publication Number Publication Date
DE2909958A1 DE2909958A1 (de) 1980-09-25
DE2909958C2 true DE2909958C2 (esLanguage) 1988-02-04

Family

ID=6065334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792909958 Granted DE2909958A1 (de) 1979-03-14 1979-03-14 Sinterwerkstoff

Country Status (1)

Country Link
DE (1) DE2909958A1 (esLanguage)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343650A (en) * 1980-04-25 1982-08-10 Cabot Corporation Metal binder in compaction of metal powders
JPH0630214B2 (ja) * 1984-04-02 1994-04-20 バリアン・アソシエイツ・インコーポレイテツド 含浸カソードおよびその製造方法
US4880460A (en) * 1986-02-25 1989-11-14 Crucible Materials Corporation Powder metallurgy high speed tool steel article and method of manufacture
DE3806515C1 (esLanguage) * 1988-03-01 1989-07-20 Du Pont De Nemours (Deutschland) Gmbh, 4000 Duesseldorf, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011077A (en) * 1975-06-06 1977-03-08 Ford Motor Company Copper coated, iron-carbon eutectic alloy powders
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode
DE2720553A1 (de) * 1977-05-07 1978-11-09 Licentia Gmbh Verfahren zum herstellen eines vorratskoerpers fuer eine vorratskathode

Also Published As

Publication number Publication date
DE2909958A1 (de) 1980-09-25

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Legal Events

Date Code Title Description
8120 Willingness to grant licences paragraph 23
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AEG ELEKTRONISCHE ROEHREN GMBH, 89077 ULM, DE