GB642755A - Improvements in or relating to the manufacture of oxide cathodes for electric discharge tubes - Google Patents
Improvements in or relating to the manufacture of oxide cathodes for electric discharge tubesInfo
- Publication number
- GB642755A GB642755A GB29854/47A GB2985447A GB642755A GB 642755 A GB642755 A GB 642755A GB 29854/47 A GB29854/47 A GB 29854/47A GB 2985447 A GB2985447 A GB 2985447A GB 642755 A GB642755 A GB 642755A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- copper
- manufacture
- oxide
- nov
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract 3
- 239000010949 copper Substances 0.000 abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 230000004913 activation Effects 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 230000005496 eutectics Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
Classifications
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL260730X | 1946-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB642755A true GB642755A (en) | 1950-09-13 |
Family
ID=19781496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29854/47A Expired GB642755A (en) | 1946-11-13 | 1947-11-10 | Improvements in or relating to the manufacture of oxide cathodes for electric discharge tubes |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2464874A (en, 2012) |
| BE (1) | BE477288A (en, 2012) |
| CH (1) | CH260730A (en, 2012) |
| DE (1) | DE809219C (en, 2012) |
| FR (1) | FR955482A (en, 2012) |
| GB (1) | GB642755A (en, 2012) |
| NL (1) | NL74346C (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE956256C (de) * | 1953-05-31 | 1957-01-17 | Siemens Ag | Verfahren zur Erhoehung der Schichtleitfaehigkeit von Oxydkathoden |
| NL101810C (en, 2012) * | 1955-02-12 | |||
| US2952812A (en) * | 1956-01-27 | 1960-09-13 | California Research Corp | Pulse modulation function multiplier |
| DE1057231B (de) * | 1956-03-03 | 1959-05-14 | Patra Patent Treuhand | Aktivierte Gluehelektrode fuer elektrische Entladungslampen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2362510A (en) * | 1942-01-03 | 1944-11-14 | Raytheon Mfg Co | Emissive filament and method of making |
-
0
- FR FR955482D patent/FR955482A/fr not_active Expired
- BE BE477288D patent/BE477288A/xx unknown
- NL NL74346D patent/NL74346C/xx active
-
1947
- 1947-11-10 GB GB29854/47A patent/GB642755A/en not_active Expired
- 1947-11-11 CH CH260730D patent/CH260730A/de unknown
- 1947-12-10 US US790924A patent/US2464874A/en not_active Expired - Lifetime
-
1948
- 1948-11-05 DE DEP20718A patent/DE809219C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE477288A (en, 2012) | |
| CH260730A (de) | 1949-03-31 |
| US2464874A (en) | 1949-03-22 |
| NL74346C (en, 2012) | |
| FR955482A (en, 2012) | 1950-01-14 |
| DE809219C (de) | 1951-07-26 |
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