ES225387A1 - MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE CáTODOS - Google Patents
MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE CáTODOSInfo
- Publication number
- ES225387A1 ES225387A1 ES0225387A ES225387A ES225387A1 ES 225387 A1 ES225387 A1 ES 225387A1 ES 0225387 A ES0225387 A ES 0225387A ES 225387 A ES225387 A ES 225387A ES 225387 A1 ES225387 A1 ES 225387A1
- Authority
- ES
- Spain
- Prior art keywords
- metal
- porous
- fused
- layer
- refractory 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
Links
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- 239000003870 refractory metal Substances 0.000 abstract 4
- 150000001339 alkali metal compounds Chemical class 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- QBXVTOWCLDDBIC-UHFFFAOYSA-N [Zr].[Ta] Chemical compound [Zr].[Ta] QBXVTOWCLDDBIC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- -1 for example Substances 0.000 abstract 1
- 239000011876 fused mixture Substances 0.000 abstract 1
- 229910052735 hafnium Inorganic materials 0.000 abstract 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 230000009257 reactivity Effects 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 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
Landscapes
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US473386A US2813220A (en) | 1954-12-06 | 1954-12-06 | Indirectly heated cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES225387A1 true ES225387A1 (es) | 1956-02-01 |
Family
ID=23879314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0225387A Expired ES225387A1 (es) | 1954-12-06 | 1955-12-03 | MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE CáTODOS |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US2813220A (en。) |
| BE (1) | BE543391A (en。) |
| CH (1) | CH336905A (en。) |
| DE (1) | DE1039141B (en。) |
| ES (1) | ES225387A1 (en。) |
| FR (1) | FR1143215A (en。) |
| GB (1) | GB793726A (en。) |
| NL (1) | NL94233C (en。) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE544065A (en。) * | 1953-08-14 | |||
| US3201639A (en) * | 1955-02-09 | 1965-08-17 | Philips Corp | Thermionic dispenser cathode |
| US2945295A (en) * | 1957-12-20 | 1960-07-19 | Westinghouse Electric Corp | High temperature metallic joint |
| US3018404A (en) * | 1958-03-27 | 1962-01-23 | Raytheon Co | Electron tube cathodes |
| US2975320A (en) * | 1958-12-03 | 1961-03-14 | Rca Corp | Low-temperature plasma source |
| US2945150A (en) * | 1958-12-11 | 1960-07-12 | Gen Electric | Thermionic cathodes and methods of making |
| US2975322A (en) * | 1958-12-29 | 1961-03-14 | Raytheon Co | Indirectly heated cathodes |
| US3117249A (en) * | 1960-02-16 | 1964-01-07 | Sperry Rand Corp | Embedded heater cathode |
| US3134924A (en) * | 1960-07-05 | 1964-05-26 | Monsanto Co | Emissive materials of a metal matrix with molecularly dispersed additives |
| US3258636A (en) * | 1961-09-01 | 1966-06-28 | Electron emitter with activator of sill cide, boride or carbide of solid solu- tion of barium and at least one other alkaline earth metal | |
| US3373307A (en) * | 1963-11-21 | 1968-03-12 | Philips Corp | Dispenser cathode |
| DE1257980B (de) | 1966-05-20 | 1968-01-04 | Telefunken Patent | Vorratskathode und Verfahren zu deren Herstellung |
| DE2842079A1 (de) * | 1978-09-27 | 1980-04-03 | Siemens Ag | Vorratskathode, insbesondere metall- kapillar-kathode |
| JPS5652835A (en) * | 1979-10-01 | 1981-05-12 | Hitachi Ltd | Impregnated cathode |
| FR2494035A1 (fr) * | 1980-11-07 | 1982-05-14 | Thomson Csf | Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode |
| KR930007461B1 (ko) * | 1991-04-23 | 1993-08-11 | 주식회사 금성사 | 함침형 음극 제조방법 |
| FR2683090A1 (fr) * | 1991-10-25 | 1993-04-30 | Europ Composants Electron | Cathode a reserve et procede de fabrication d'une telle cathode. |
| KR930014673A (ko) * | 1991-12-20 | 1993-07-23 | 김정배 | 함침형 음극 구조체 및 그 제조방법 |
| DE10254697A1 (de) * | 2002-11-23 | 2004-06-03 | Philips Intellectual Property & Standards Gmbh | Vakuumelektronenröhre mit Oxidkathode |
| CN114340124B (zh) * | 2021-12-30 | 2024-02-27 | 中国科学院合肥物质科学研究院 | 一种钠离子发射体及其制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT174993B (de) * | 1951-02-08 | 1953-05-26 | Philips Nv | Elektrische Entladungsröhre mit einer aus einem porösen Körper aus hochschmelzendem Metall bestehenden Kathode und Verfahren zur Herstellung einer solchen Kathode |
| AT176924B (de) * | 1951-03-22 | 1953-12-10 | Philips Nv | Verfahren zur Herstellung einer Kathode für eine elektrische Entladungsröhre, die im Inneren einen Vorrat Erdalkalimetallverbindungen enthält und deren Wand wenigstens teilweise aus einem durch Pressen und Sintern hergestellten porösen Körper besteht, und durch dieses Verfahren hergestellte Kathode |
| DE890390C (de) * | 1951-07-12 | 1953-09-17 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| NL174029B (nl) * | 1951-11-29 | Joseph Salim Peress | Holle geleding voor bijvoorbeeld een duikpak. | |
| BE515835A (en。) * | 1951-11-29 | |||
| BE515834A (en。) * | 1951-11-29 | |||
| AT180338B (de) * | 1952-02-27 | 1954-11-25 | Philips Nv | Kathode für eine elektrische Entladungsröhre und Verfahren zur Herstellung dieser Kathode |
| AT183488B (de) * | 1953-06-11 | 1955-10-10 | Philips Nv | Verfahren zur Herstellung eines Kathodenkörpers für eine elektrische Entladungsröhre |
-
0
- BE BE543391D patent/BE543391A/xx unknown
- NL NL94233D patent/NL94233C/xx active
-
1954
- 1954-12-06 US US473386A patent/US2813220A/en not_active Expired - Lifetime
-
1955
- 1955-12-02 GB GB34563/55A patent/GB793726A/en not_active Expired
- 1955-12-02 DE DEN11529A patent/DE1039141B/de active Pending
- 1955-12-03 ES ES0225387A patent/ES225387A1/es not_active Expired
- 1955-12-05 FR FR1143215D patent/FR1143215A/fr not_active Expired
- 1955-12-05 CH CH336905D patent/CH336905A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE543391A (en。) | |
| CH336905A (de) | 1959-03-15 |
| GB793726A (en) | 1958-04-23 |
| FR1143215A (fr) | 1957-09-27 |
| DE1039141B (de) | 1958-09-18 |
| US2813220A (en) | 1957-11-12 |
| NL94233C (en。) |
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