GB971531A - Thermionic electron emitter elements and their manufacture - Google Patents
Thermionic electron emitter elements and their manufactureInfo
- Publication number
- GB971531A GB971531A GB18455/63A GB1845563A GB971531A GB 971531 A GB971531 A GB 971531A GB 18455/63 A GB18455/63 A GB 18455/63A GB 1845563 A GB1845563 A GB 1845563A GB 971531 A GB971531 A GB 971531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rhenium
- tungsten
- niobium
- electron emitter
- uranium
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 229910052770 Uranium Inorganic materials 0.000 abstract 4
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052758 niobium Inorganic materials 0.000 abstract 3
- 239000010955 niobium Substances 0.000 abstract 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 abstract 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 3
- 229910052721 tungsten Inorganic materials 0.000 abstract 3
- 239000010937 tungsten Substances 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- 239000011195 cermet Substances 0.000 abstract 2
- 238000005253 cladding Methods 0.000 abstract 2
- 239000011888 foil Substances 0.000 abstract 2
- 229910052702 rhenium Inorganic materials 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910001080 W alloy Inorganic materials 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000001307 helium Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 239000000543 intermediate Substances 0.000 abstract 1
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J45/00—Discharge tubes functioning as thermionic generators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A thermionic electron emitter comprises a cermet body containing 10-80% by volume of uranium carbide and 90-20% by volume <PICT:0971531/C6-C7/1> of rhenium, tungsten or rhenium-tungsten alloy. As shown, the cermet body 14 contains 80% uranium carbide and 20% rhenium and is provided with a niobium cladding 16 and an interposed tungsten foil. During manufacture pure uranium and carbon are arc-melted in argon to produce uranium carbide, which may include mono- and di-carbides as well as intermediates such as U2C3, and which is pulverized and mixed with rhenium powder and about 1% by weight of an organic binder and cold-pressed at 60,000 lbs./sq.inch to form a green compact. This compact is then placed in a lidded niobium cup lined with tungsten foil and vacuum-sealed and finally pressure bonded in helium at 10,000 lbs./sq.inch pressure and 2700 DEG F., before slicing away the lidded portion of the niobium cladding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US194448A US3232717A (en) | 1962-05-14 | 1962-05-14 | Uranium monocarbide thermionic emitters |
| US423403A US3243292A (en) | 1962-05-14 | 1964-11-05 | Method of making a thermionic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB971531A true GB971531A (en) | 1964-09-30 |
Family
ID=26890018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18455/63A Expired GB971531A (en) | 1962-05-14 | 1963-05-09 | Thermionic electron emitter elements and their manufacture |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3243292A (en) |
| DE (1) | DE1240967B (en) |
| GB (1) | GB971531A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1282200B (en) * | 1964-07-03 | 1968-11-07 | Bbc Brown Boveri & Cie | Thermionic energy converter |
| JP2748729B2 (en) * | 1991-07-25 | 1998-05-13 | 日本電気株式会社 | Method for producing impregnated cathode assembly |
| DE102022112269A1 (en) | 2021-05-18 | 2022-11-24 | Quantum Technologies UG (haftungsbeschränkt) | Quantum computing stack for an NV center based quantum computer and PQC communication of quantum computers |
| WO2023170054A1 (en) | 2022-03-08 | 2023-09-14 | Quantum Technologies Gmbh | Quantum computer system and method for operating a movable quantum computer |
| DE102022105464A1 (en) | 2022-03-08 | 2023-09-14 | Quantum Technologies Gmbh | Vehicle with a deployable quantum computer and associated deployable quantum computer system |
| DE102022004989A1 (en) | 2022-03-08 | 2023-09-14 | Quantum Technologies Gmbh | Vehicle with a deployable quantum computer and associated, deployable quantum computer system with protection against transient disruptions in the energy supply |
| DE202023101056U1 (en) | 2022-03-08 | 2023-03-21 | Quantum Technologies Gmbh | Diamond chip for a mobile NV center quantum computer with a cryostat |
| DE102022112677A1 (en) | 2022-03-08 | 2023-09-14 | Quantum Technologies Gmbh | Vehicle with a deployable quantum computer and associated deployable quantum computer system |
| DE202023100801U1 (en) | 2022-03-08 | 2023-03-29 | Quantum Technologies Gmbh | Rotating quantum computer based on NV centers for mobile applications |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3091581A (en) * | 1958-03-03 | 1963-05-28 | Martin Marietta Corp | Fissionable fuel capsules and method of manufacturing same |
| US2943933A (en) * | 1959-05-21 | 1960-07-05 | Beryllium Corp | Method and apparatus for making isotropic propertied beryllium sheet |
| US3168399A (en) * | 1960-05-11 | 1965-02-02 | Mitsubishi Atomic Power Ind | Method of producing circularly cylindrical members of material composed essentially of zirconium and/or niobium |
| US3147362A (en) * | 1960-08-01 | 1964-09-01 | Smith Corp A O | Composite consumable electrode containing emissive compounds and method of manufacture |
| US3184840A (en) * | 1962-08-01 | 1965-05-25 | Texas Instruments Inc | Methods of making variegated stock |
-
1963
- 1963-05-09 GB GB18455/63A patent/GB971531A/en not_active Expired
- 1963-05-11 DE DEG37728A patent/DE1240967B/en active Pending
-
1964
- 1964-11-05 US US423403A patent/US3243292A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1240967B (en) | 1967-05-24 |
| US3243292A (en) | 1966-03-29 |
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