DE1094887B - Verfahren zur Herstellung einer impraegnierten Kathode fuer elektrische Entladungsroehren - Google Patents
Verfahren zur Herstellung einer impraegnierten Kathode fuer elektrische EntladungsroehrenInfo
- Publication number
- DE1094887B DE1094887B DEN17772A DEN0017772A DE1094887B DE 1094887 B DE1094887 B DE 1094887B DE N17772 A DEN17772 A DE N17772A DE N0017772 A DEN0017772 A DE N0017772A DE 1094887 B DE1094887 B DE 1094887B
- Authority
- DE
- Germany
- Prior art keywords
- layer
- carbon
- cathode
- carbide
- porous
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 29
- 229910052799 carbon Inorganic materials 0.000 claims description 23
- -1 barium oxide-aluminum oxide compound Chemical class 0.000 claims description 10
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 238000003763 carbonization Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 claims 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 8
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 1
- 229910039444 MoC Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- JZLMRQMUNCKZTP-UHFFFAOYSA-N molybdenum tantalum Chemical compound [Mo].[Ta] JZLMRQMUNCKZTP-UHFFFAOYSA-N 0.000 description 1
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78860359 US2972078A (en) | 1959-01-23 | 1959-01-23 | Carburization of dispenser cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1094887B true DE1094887B (de) | 1960-12-15 |
Family
ID=25144990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN17772A Pending DE1094887B (de) | 1959-01-23 | 1960-01-19 | Verfahren zur Herstellung einer impraegnierten Kathode fuer elektrische Entladungsroehren |
Country Status (9)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2947919A1 (de) * | 1978-11-30 | 1980-06-12 | Varian Associates | Vorratskathode, verfahren zu ihrer herstellung sowie pille dafuer |
| DE3334971A1 (de) * | 1983-09-27 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Vorratskathode, insbesondere metall-kapillar-kathode |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2242986C3 (de) * | 1972-09-01 | 1981-05-07 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Glühkathode |
| DE2842079A1 (de) * | 1978-09-27 | 1980-04-03 | Siemens Ag | Vorratskathode, insbesondere metall- kapillar-kathode |
| KR910006044B1 (ko) * | 1988-11-12 | 1991-08-12 | 삼성전관 주식회사 | 디스펜서 캐소오드의 제조방법 |
| KR920003185B1 (ko) * | 1990-01-31 | 1992-04-23 | 삼성전관 주식회사 | 디스펜서형 음극 및 그 제조방법 |
| FR2803088B1 (fr) * | 1999-12-22 | 2002-02-01 | Thomson Tubes & Displays | Procede d'assemblage d'une cathode pour tube a rayons cathodiques |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1922244A (en) * | 1930-09-13 | 1933-08-15 | Fansteel Prod Co Inc | Electrode and method of making the same |
| BE509019A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1951-02-08 | |||
| CH305546A (de) * | 1951-02-16 | 1955-02-28 | Siemens Ag | Kathode für elektrische Entladungsgefässe. |
-
0
- NL NL108689D patent/NL108689C/xx active
-
1959
- 1959-01-23 US US78860359 patent/US2972078A/en not_active Expired - Lifetime
-
1960
- 1960-01-19 DE DEN17772A patent/DE1094887B/de active Pending
- 1960-01-20 CH CH60660A patent/CH402197A/de unknown
- 1960-01-20 DK DK20760A patent/DK93307C/da active
- 1960-01-20 GB GB208260A patent/GB919419A/en not_active Expired
- 1960-01-20 AT AT40760A patent/AT219166B/de active
- 1960-01-22 BE BE586842A patent/BE586842A/fr unknown
- 1960-01-23 FR FR816505A patent/FR1245997A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2947919A1 (de) * | 1978-11-30 | 1980-06-12 | Varian Associates | Vorratskathode, verfahren zu ihrer herstellung sowie pille dafuer |
| DE3334971A1 (de) * | 1983-09-27 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Vorratskathode, insbesondere metall-kapillar-kathode |
Also Published As
| Publication number | Publication date |
|---|---|
| AT219166B (de) | 1962-01-10 |
| US2972078A (en) | 1961-02-14 |
| FR1245997A (fr) | 1960-11-10 |
| CH402197A (de) | 1965-11-15 |
| BE586842A (fr) | 1960-07-22 |
| NL108689C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1900-01-01 |
| DK93307C (da) | 1962-04-30 |
| GB919419A (en) | 1963-02-27 |
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