Scandate cathode exhibiting scandium segregation
US5006753A · kind A · utility
21Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1988 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Nov 15, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
By providing at least the top layer of the matrix of a scandate cathode with an alloy or compound which exhibits scandium segregation, a satisfactory recovery for cathodes with a high emission can be achieved after ion bombardment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.