DE1181824B - Verfahren zur Herstellung einer Vorratskathode fuer elektrische Entladnungsroehren - Google Patents
Verfahren zur Herstellung einer Vorratskathode fuer elektrische EntladnungsroehrenInfo
- Publication number
- DE1181824B DE1181824B DEN8468A DEN0008468A DE1181824B DE 1181824 B DE1181824 B DE 1181824B DE N8468 A DEN8468 A DE N8468A DE N0008468 A DEN0008468 A DE N0008468A DE 1181824 B DE1181824 B DE 1181824B
- Authority
- DE
- Germany
- Prior art keywords
- alkaline earth
- mixture
- cathode
- discharge tubes
- electrical discharge
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 3
- 239000000203 mixture Substances 0.000 claims description 10
- 239000003870 refractory metal Substances 0.000 claims description 8
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- ZJRXSAYFZMGQFP-UHFFFAOYSA-N barium peroxide Chemical compound [Ba+2].[O-][O-] ZJRXSAYFZMGQFP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 150000001540 azides Chemical class 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 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
- Solid Thermionic Cathode (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US337022A US2722626A (en) | 1953-02-16 | 1953-02-16 | Thermionic cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1181824B true DE1181824B (de) | 1964-11-19 |
Family
ID=23318765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN8468A Pending DE1181824B (de) | 1953-02-16 | 1954-02-13 | Verfahren zur Herstellung einer Vorratskathode fuer elektrische Entladnungsroehren |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2722626A (en, 2012) |
| BE (1) | BE526506A (en, 2012) |
| CH (1) | CH319033A (en, 2012) |
| DE (1) | DE1181824B (en, 2012) |
| FR (1) | FR1093241A (en, 2012) |
| GB (1) | GB751507A (en, 2012) |
Cited By (2)
| 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 |
| EP0009261A1 (de) * | 1978-09-27 | 1980-04-02 | Siemens Aktiengesellschaft | Vorratskathode, insbesondere Metall-Kapillar-Kathode |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2808530A (en) * | 1951-04-18 | 1957-10-01 | Siemens Ag | Cathode for electrical discharge devices |
| BE525821A (en, 2012) * | 1953-01-19 | |||
| BE548876A (en, 2012) * | 1953-08-14 | |||
| NL102345C (en, 2012) * | 1954-06-16 | |||
| US2888592A (en) * | 1954-07-22 | 1959-05-26 | Gen Electric | Cathode structure |
| US3076915A (en) * | 1954-12-24 | 1963-02-05 | Egyesuelt Izzolampa | Cathode assembly and method of making same |
| NL108501C (en, 2012) * | 1957-01-26 | |||
| US2914402A (en) * | 1957-02-26 | 1959-11-24 | Bell Telephone Labor Inc | Method of making sintered cathodes |
| US3155864A (en) * | 1960-03-21 | 1964-11-03 | Gen Electric | Dispenser cathode |
| US3525135A (en) * | 1964-04-16 | 1970-08-25 | Gen Electric | Thermionic cathode |
| US3421864A (en) * | 1965-06-07 | 1969-01-14 | Nasa | Multilayer porous ionizer |
| DE1234861B (de) * | 1965-07-05 | 1967-02-23 | Siemens Ag | Vorratskathode fuer elektrische Entladungsgefaesse |
| US3458913A (en) * | 1966-04-19 | 1969-08-05 | Siemens Ag | Supply cathode for electrical discharge vessels and method for its production |
| US3842309A (en) * | 1970-11-12 | 1974-10-15 | Philips Corp | Method of manufacturing a storage cathode and cathode manufactured by said method |
| GB1446507A (en) * | 1978-09-15 | 1976-08-18 | V N I Pk I T I Elektrosvarochn | Electrode for plasma arc working of conductive materials |
| US4369392A (en) * | 1979-09-20 | 1983-01-18 | Matsushita Electric Industrial Co., Ltd. | Oxide-coated cathode and method of producing the same |
| 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 |
| US5007874A (en) * | 1990-10-15 | 1991-04-16 | The United States Of America As Represented By The Secretary Of The Army | Method of making a cathode from tungsten and iridium powders using a reaction product from reacting a group III A metal with barium peroxide as an impregnant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE949361C (de) * | 1951-04-18 | 1956-09-20 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| DE976456C (de) * | 1952-04-10 | 1963-09-12 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1716545A (en) * | 1929-06-11 | Geobqe m | ||
| US1846242A (en) * | 1929-01-05 | 1932-02-23 | Argco Tube And Television Corp | Electrode and method of making the same |
| US1922244A (en) * | 1930-09-13 | 1933-08-15 | Fansteel Prod Co Inc | Electrode and method of making the same |
| US2121589A (en) * | 1934-06-28 | 1938-06-21 | Westinghouse Electric & Mfg Co | Emissive incandescent cathode |
| US2175345A (en) * | 1935-07-12 | 1939-10-10 | Gen Electric | Electric gaseous discharge device |
| NL69486C (en, 2012) * | 1947-11-26 | |||
| US2624024A (en) * | 1949-10-26 | 1952-12-30 | Hartford Nat Bank & Trust Co | Cathode for use in electron discharge tubes |
-
0
- FR FR1093241D patent/FR1093241A/fr not_active Expired
- BE BE526506D patent/BE526506A/xx unknown
-
1953
- 1953-02-16 US US337022A patent/US2722626A/en not_active Expired - Lifetime
-
1954
- 1954-02-12 GB GB4213/54A patent/GB751507A/en not_active Expired
- 1954-02-13 DE DEN8468A patent/DE1181824B/de active Pending
- 1954-02-15 CH CH319033D patent/CH319033A/de unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE949361C (de) * | 1951-04-18 | 1956-09-20 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| DE976456C (de) * | 1952-04-10 | 1963-09-12 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
Cited By (2)
| 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 |
| EP0009261A1 (de) * | 1978-09-27 | 1980-04-02 | Siemens Aktiengesellschaft | Vorratskathode, insbesondere Metall-Kapillar-Kathode |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1093241A (en, 2012) | 1955-05-02 |
| US2722626A (en) | 1955-11-01 |
| BE526506A (en, 2012) | |
| CH319033A (de) | 1957-01-31 |
| GB751507A (en) | 1956-06-27 |
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