DE1614541A1 - Thorium-Film-Kathode fuer elektrische Entladungsgefaesse - Google Patents
Thorium-Film-Kathode fuer elektrische EntladungsgefaesseInfo
- Publication number
- DE1614541A1 DE1614541A1 DE19671614541 DE1614541A DE1614541A1 DE 1614541 A1 DE1614541 A1 DE 1614541A1 DE 19671614541 DE19671614541 DE 19671614541 DE 1614541 A DE1614541 A DE 1614541A DE 1614541 A1 DE1614541 A1 DE 1614541A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- thorium
- cathode
- metal
- tungsten
- 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
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 title claims description 12
- 229910052776 Thorium Inorganic materials 0.000 title claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 11
- 229910052721 tungsten Inorganic materials 0.000 claims description 11
- 239000010937 tungsten Substances 0.000 claims description 11
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- 239000003870 refractory metal Substances 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims 2
- 230000008018 melting Effects 0.000 claims 2
- 230000005012 migration Effects 0.000 claims 1
- 238000013508 migration Methods 0.000 claims 1
- 210000001550 testis Anatomy 0.000 claims 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 6
- 229910003452 thorium oxide Inorganic materials 0.000 description 6
- 238000000137 annealing Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241000135799 Thorius Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000758 substrate Substances 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
- H01J1/14—Solid thermionic cathodes characterised by the material
Landscapes
- Electrolytic Production Of Metals (AREA)
- Solid Thermionic Cathode (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US738402A US3697321A (en) | 1967-06-21 | 1968-06-20 | Thermionic cathode and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0110437 | 1967-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1614541A1 true DE1614541A1 (de) | 1970-08-20 |
Family
ID=7530233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19671614541 Pending DE1614541A1 (de) | 1967-06-21 | 1967-06-21 | Thorium-Film-Kathode fuer elektrische Entladungsgefaesse |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1614541A1 (enExample) |
| FR (1) | FR1569373A (enExample) |
| GB (1) | GB1170880A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2344936A1 (de) * | 1973-07-09 | 1975-02-06 | Bbc Brown Boveri & Cie | Thermische kathode fuer elektronenroehren und verfahren zu deren herstellung |
| DE4114487A1 (de) * | 1991-05-03 | 1992-11-05 | Wilhelm Dr Ing Ziegenbein | Hochleistungs-gluehkathode |
| DE4305558A1 (de) * | 1993-02-24 | 1994-08-25 | Asea Brown Boveri | Verfahren zur Herstellung von Drähten, welche insbesondere für Kathoden von Elektronenröhren geeignet sind |
-
1967
- 1967-06-21 DE DE19671614541 patent/DE1614541A1/de active Pending
-
1968
- 1968-06-19 FR FR1569373D patent/FR1569373A/fr not_active Expired
- 1968-06-20 GB GB2933568A patent/GB1170880A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2344936A1 (de) * | 1973-07-09 | 1975-02-06 | Bbc Brown Boveri & Cie | Thermische kathode fuer elektronenroehren und verfahren zu deren herstellung |
| DE4114487A1 (de) * | 1991-05-03 | 1992-11-05 | Wilhelm Dr Ing Ziegenbein | Hochleistungs-gluehkathode |
| DE4305558A1 (de) * | 1993-02-24 | 1994-08-25 | Asea Brown Boveri | Verfahren zur Herstellung von Drähten, welche insbesondere für Kathoden von Elektronenröhren geeignet sind |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1569373A (enExample) | 1969-05-30 |
| GB1170880A (en) | 1969-11-19 |
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