GB510983A - Improvements in thermionic cathodes - Google Patents
Improvements in thermionic cathodesInfo
- Publication number
- GB510983A GB510983A GB1344738A GB1344738A GB510983A GB 510983 A GB510983 A GB 510983A GB 1344738 A GB1344738 A GB 1344738A GB 1344738 A GB1344738 A GB 1344738A GB 510983 A GB510983 A GB 510983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- alloy
- magnesium
- class
- per cent
- 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
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
- Manufacture And Refinement Of Metals (AREA)
Abstract
510,983. Alloys. GENERAL ELECTRIC CO., Ltd., BENJAMIN, M., and SMITHELLS, C. J. May 5, 1938, No. 13447. [Class 82 (i)] The core of an oxide coated thermionic cathode consists of a nickel alloy containing not less than 75 per cent. of nickel with 0.15- 0.5 per cent. of magnesium with or without other elements such as iron and cobalt. The alloy may be made by melting nickel in a reducing atmosphere in an induction furnace and adding a magnesium-rich magnesiumnickel alloy immediately before casting into an ingot. Specifications 257,604, [Class 82 (i)], 376,727 and 397,132 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1344738A GB510983A (en) | 1938-05-05 | 1938-05-05 | Improvements in thermionic cathodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1344738A GB510983A (en) | 1938-05-05 | 1938-05-05 | Improvements in thermionic cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB510983A true GB510983A (en) | 1939-08-11 |
Family
ID=10023157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1344738A Expired GB510983A (en) | 1938-05-05 | 1938-05-05 | Improvements in thermionic cathodes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB510983A (en) |
-
1938
- 1938-05-05 GB GB1344738A patent/GB510983A/en not_active Expired
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