GB1131586A - Improvements relating to dispenser cathodes - Google Patents
Improvements relating to dispenser cathodesInfo
- Publication number
- GB1131586A GB1131586A GB29360/67A GB2936067A GB1131586A GB 1131586 A GB1131586 A GB 1131586A GB 29360/67 A GB29360/67 A GB 29360/67A GB 2936067 A GB2936067 A GB 2936067A GB 1131586 A GB1131586 A GB 1131586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- powder
- slurry
- tungsten
- weight
- 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
- 239000000203 mixture Substances 0.000 abstract 5
- 239000002002 slurry Substances 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 abstract 2
- 229930006000 Sucrose Natural products 0.000 abstract 2
- 150000002894 organic compounds Chemical class 0.000 abstract 2
- 239000005720 sucrose Substances 0.000 abstract 2
- 239000010937 tungsten Substances 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 150000004645 aluminates Chemical class 0.000 abstract 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 238000000975 co-precipitation Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000008240 homogeneous mixture Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- -1 sucrose Chemical class 0.000 abstract 1
- YOUIDGQAIILFBW-UHFFFAOYSA-J tetrachlorotungsten Chemical compound Cl[W](Cl)(Cl)Cl YOUIDGQAIILFBW-UHFFFAOYSA-J 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 |
|---|---|---|---|
| NL6608782A NL6608782A (https=) | 1966-06-24 | 1966-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1131586A true GB1131586A (en) | 1968-10-23 |
Family
ID=19796967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29360/67A Expired GB1131586A (en) | 1966-06-24 | 1967-06-26 | Improvements relating to dispenser cathodes |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3458749A (https=) |
| AT (1) | AT270820B (https=) |
| BE (1) | BE700464A (https=) |
| CH (1) | CH489111A (https=) |
| ES (2) | ES342176A1 (https=) |
| GB (1) | GB1131586A (https=) |
| NL (1) | NL6608782A (https=) |
| SE (1) | SE318031B (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262650A (en) * | 1991-12-20 | 1993-06-23 | Samsung Electronic Devices | Impregnated dispenser cathode and manufacture thereof. |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3534455A (en) * | 1968-05-03 | 1970-10-20 | Us Army | Method of making thermionic cathodes |
| US3656020A (en) * | 1970-11-18 | 1972-04-11 | Spectra Mat Inc | Thermionic cathode comprising mixture of barium oxide, calcium oxide and lithium oxide |
| US3760218A (en) * | 1972-04-10 | 1973-09-18 | Spectramat Inc | Thermionic cathode |
| JPS5046058U (https=) * | 1973-08-27 | 1975-05-08 | ||
| JPS5150955U (https=) * | 1974-10-16 | 1976-04-17 | ||
| US4837480A (en) * | 1988-03-28 | 1989-06-06 | Hughes Aircraft Company | Simplified process for fabricating dispenser cathodes |
| US5092805A (en) * | 1988-11-11 | 1992-03-03 | Samsung Electron Devices Co., Ltd. | Manufacturing method for dispenser code |
| US7406268B2 (en) * | 2003-08-27 | 2008-07-29 | Avago Technologies Limited | Optical receiver circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE548876A (https=) * | 1953-08-14 | |||
| US2975320A (en) * | 1958-12-03 | 1961-03-14 | Rca Corp | Low-temperature plasma source |
| US3076916A (en) * | 1959-01-21 | 1963-02-05 | Semicon Associates Inc | Impregnated tungsten cathode structures and methods for fabricating same |
-
1966
- 1966-06-24 NL NL6608782A patent/NL6608782A/xx unknown
-
1967
- 1967-06-06 US US644003A patent/US3458749A/en not_active Expired - Lifetime
- 1967-06-21 AT AT577467A patent/AT270820B/de active
- 1967-06-21 SE SE8869/67A patent/SE318031B/xx unknown
- 1967-06-21 CH CH879567A patent/CH489111A/de not_active IP Right Cessation
- 1967-06-22 ES ES342176A patent/ES342176A1/es not_active Expired
- 1967-06-23 BE BE700464D patent/BE700464A/xx unknown
- 1967-06-26 GB GB29360/67A patent/GB1131586A/en not_active Expired
-
1968
- 1968-05-14 ES ES353888A patent/ES353888A1/es not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262650A (en) * | 1991-12-20 | 1993-06-23 | Samsung Electronic Devices | Impregnated dispenser cathode and manufacture thereof. |
Also Published As
| Publication number | Publication date |
|---|---|
| SE318031B (https=) | 1969-12-01 |
| CH489111A (de) | 1970-04-15 |
| ES353888A1 (es) | 1969-10-01 |
| US3458749A (en) | 1969-07-29 |
| BE700464A (https=) | 1967-12-27 |
| DE1614256B2 (de) | 1975-09-11 |
| AT270820B (de) | 1969-05-12 |
| DE1614256A1 (de) | 1970-05-27 |
| ES342176A1 (es) | 1968-10-01 |
| NL6608782A (https=) | 1967-12-27 |
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