DE2157768A1 - Indirekt heizbare Nachlieferungskathode - Google Patents
Indirekt heizbare NachlieferungskathodeInfo
- Publication number
- DE2157768A1 DE2157768A1 DE19712157768 DE2157768A DE2157768A1 DE 2157768 A1 DE2157768 A1 DE 2157768A1 DE 19712157768 DE19712157768 DE 19712157768 DE 2157768 A DE2157768 A DE 2157768A DE 2157768 A1 DE2157768 A1 DE 2157768A1
- Authority
- DE
- Germany
- Prior art keywords
- cathode
- sintered
- pins
- emitting body
- bottom plate
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture 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
- QKYBEKAEVQPNIN-UHFFFAOYSA-N barium(2+);oxido(oxo)alumane Chemical compound [Ba+2].[O-][Al]=O.[O-][Al]=O QKYBEKAEVQPNIN-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004544 sputter deposition 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
Landscapes
- Powder Metallurgy (AREA)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7018001A NL7018001A (enrdf_load_stackoverflow) | 1970-12-10 | 1970-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2157768A1 true DE2157768A1 (de) | 1972-06-29 |
Family
ID=19811756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712157768 Pending DE2157768A1 (de) | 1970-12-10 | 1971-11-22 | Indirekt heizbare Nachlieferungskathode |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3753025A (enrdf_load_stackoverflow) |
| CA (1) | CA934431A (enrdf_load_stackoverflow) |
| DE (1) | DE2157768A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2117650A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1327975A (enrdf_load_stackoverflow) |
| NL (1) | NL7018001A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1582837A (en) * | 1976-07-10 | 1981-01-14 | Emi Varian Ltd | Electron emitter |
| US4379979A (en) * | 1981-02-06 | 1983-04-12 | The United States Of America As Represented By The Secretary Of The Navy | Controlled porosity sheet for thermionic dispenser cathode and method of manufacture |
| US5118983A (en) * | 1989-03-24 | 1992-06-02 | Mitsubishi Denki Kabushiki Kaisha | Thermionic electron source |
| US5350969A (en) * | 1991-12-03 | 1994-09-27 | Litton Systems, Inc. | Cathode heater and cathode assembly for microwave power tubes |
| KR950006088B1 (ko) * | 1992-06-27 | 1995-06-08 | 주식회사엘지전자 | 함침형 음극 구조체의 함침 펠렛트 및 그 제조방법 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE890390C (de) * | 1951-07-12 | 1953-09-17 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| US3117249A (en) * | 1960-02-16 | 1964-01-07 | Sperry Rand Corp | Embedded heater cathode |
| FR1489050A (fr) * | 1966-03-22 | 1967-07-21 | Commissariat Energie Atomique | électrode composite pour tuyère de conversion magnétohydrodynamique |
-
1970
- 1970-12-10 NL NL7018001A patent/NL7018001A/xx unknown
-
1971
- 1971-11-22 DE DE19712157768 patent/DE2157768A1/de active Pending
- 1971-12-01 US US00203705A patent/US3753025A/en not_active Expired - Lifetime
- 1971-12-07 GB GB5675971A patent/GB1327975A/en not_active Expired
- 1971-12-08 CA CA129609A patent/CA934431A/en not_active Expired
- 1971-12-10 FR FR7144461A patent/FR2117650A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2117650A5 (enrdf_load_stackoverflow) | 1972-07-21 |
| GB1327975A (en) | 1973-08-22 |
| US3753025A (en) | 1973-08-14 |
| NL7018001A (enrdf_load_stackoverflow) | 1972-06-13 |
| CA934431A (en) | 1973-09-25 |
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