GB657202A - Non-alloying zirconium coating material - Google Patents
Non-alloying zirconium coating materialInfo
- Publication number
- GB657202A GB657202A GB2631/49A GB263149A GB657202A GB 657202 A GB657202 A GB 657202A GB 2631/49 A GB2631/49 A GB 2631/49A GB 263149 A GB263149 A GB 263149A GB 657202 A GB657202 A GB 657202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydride
- zirconium
- oxide
- coated
- milled
- 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
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
Metal surfaces are coated with a mixture of one part by weight of zirconium oxide and one to nineteen parts of zirconium metal or hydride. Loss of gettering and heat-radiating properties by alloying of zirconium with the base is thus reduced. The mixture, with a binder, may be sprayed and, in the case of a hydride-coated electrode, the reducing temperature is sufficient to remove occluded gases, or the coated anode, especially a molybdenum anode, may be baked to reduce the hydride before assembly within the discharge tube. For iron or molybdenum anodes, the coating may consist of three parts of hydride to one part of oxide. Commercial hydride powder may be milled for twenty-four hours, mixed with the powdered oxide, milled for four hours and then mixed with a binder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US657202XA | 1948-02-25 | 1948-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB657202A true GB657202A (en) | 1951-09-12 |
Family
ID=22064636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2631/49A Expired GB657202A (en) | 1948-02-25 | 1949-01-31 | Non-alloying zirconium coating material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB657202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0201877A2 (en) * | 1985-05-09 | 1986-11-20 | Nokia Graetz Gesellschaft mit beschränkter Haftung | Directly heated sorption getter body |
-
1949
- 1949-01-31 GB GB2631/49A patent/GB657202A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0201877A2 (en) * | 1985-05-09 | 1986-11-20 | Nokia Graetz Gesellschaft mit beschränkter Haftung | Directly heated sorption getter body |
| EP0201877A3 (en) * | 1985-05-09 | 1987-11-19 | Nokia Graetz Gesellschaft mit beschränkter Haftung | Directly heated sorption getter body |
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